Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Responsive to condition

Subclass of:

347 - Incremental printing of symbolic information

347001000 - INK JET

347005000 - Controller

347009000 - Of ejector

Patent class list (only not empty are listed)

Deeper subclasses:

Entries
DocumentTitleDate
20090237434SYSTEMS AND METHODS FOR DETECTING PRINT HEAD DEFECTS IN PRINTING CLEAR INK - A method for detecting a defect in an inkjet print head for printing a substantially clear ink includes including an ultraviolet or infrared sensitive material in the substantially clear ink, marking a test image on a substrate by jetting the substantially clear ink through one or more jets of the inkjet print head to be evaluated, exposing the test image to activating radiation having a wavelength to which the included ultraviolet or infrared sensitive material responds. During or following the exposing, the test image is evaluated with an image sensor, and whether the inkjet print head or any one of the one or more jets thereof being evaluated is defective is then determined based on the evaluation. A system for the method is also set forth.09-24-2009
20090219321LIQUID EJECTING DEVICE, COMPUTER SYSTEM, AND LIQUID EJECTING METHOD - A liquid ejecting apparatus etc. creating no blank space on a medium is achieved. The liquid ejecting apparatus has: a movable ejection head for ejecting a liquid; a feed mechanism for feeding a medium; and detecting means for detecting a position of an edge of the medium; wherein the apparatus repeats an operation of detecting the position of the edge with the detecting means, an operation of feeding the medium with the feed mechanism, and an operation of ejecting the liquid onto the medium from the moving ejection head; in accordance with the position of the edge that has been detected, the apparatus changes at least either one of a start position and an end position for ejecting the liquid from the moving ejection head; and if the position of the edge was not detected, the apparatus sets the start position or the end position to a position that has been established in advance.09-03-2009
20090219319MATERIAL JET SYSTEM - Material jet system, comprising a container for molten jet material (09-03-2009
20090195579INKJET PRINTING SYSTEM AND METHOD OF PRINTING - A method of printing comprises providing a carriage-type inkjet printer having a printhead, with the printer being responsive to digital signals and capable of printing in a multi-pass printing mode, supplying the printer with pigment-based inks, supplying the printer with a receiver surface suitable for printing of photographic images, detecting a degree of texturing on the receiver surface, selecting a number of passes for the multi-pass printing mode based on the detected degree of texturing of the receiver surface, and passing the print head over the receiver surface in accordance with the selected number of passes.08-06-2009
20100060687INKJET PRINTHEAD - Disclosed is a thermal inkjet printhead including at least one volume-changing body that can be used to maintain a flow resistance of ink that flows into an ink chamber substantially constant over an operating temperature range for the thermal inkjet printhead. The volume-changing body can be disposed in the ink flow path through which ink flows into the ink chamber and can be configured to adjust its volume to change the cross-sectional area of the ink flow path when the operating temperature of the thermal inkjet printhead, and thus the viscosity of the ink, changes.03-11-2010
20090195584Double-sided record apparatus and double-sided record method - A double-sided record apparatus for forming images on both sides of a recording medium. The double-sided record apparatus includes: a print head that moves relatively to the record medium and ejects ink onto a face of the record medium; a counting unit configured to count the number of ejected ink droplets to a predetermined area on the record medium from the print head; a comparison unit configured to compare the number of ejected ink droplets counted by the counting unit with a predetermined value; and a determination unit configured to determine whether double-sided record of the record medium is enabled based on a comparison result of the comparison unit.08-06-2009
20090195583PRINTING APPARATUS AND CONTROL METHOD - A printing apparatus includes: printheads being arranged along a transport path of a printing medium transported in a transporting direction and having a plurality of nozzles arranged in the direction of arrangement which intersects the transporting direction; a printhead control unit configured to print an image on the printing medium by discharging ink from part of the plurality of nozzles on the basis of given image data; and a discharge inspection unit configured to detect any discharge-defective nozzle present in the plurality of nozzles, the printhead control unit specifying specific nozzles which discharge ink for printing the image, determining whether any discharge-defective nozzle is included in the specific nozzles or not, and starting printing of the image when it is determined that no discharge-defective nozzle is included in the specific nozzles.08-06-2009
20090195582DROPLET EJECTING DEVICE CAPABLE OF RECOVERING EJECTION PERFORMANCE EFFICIENTLY - A droplet ejecting head is formed with at least one nozzle and is configured to eject a liquid droplet through the at least one nozzle in a nozzle axis direction. A carriage supports the droplet ejecting head. A guide member extends in a predetermined direction and is configured to guide the carriage so that the carriage is movable in the predetermined direction. A moving section moves the carriage along the guide member. The droplet ejecting head is configured to eject a liquid droplet through the at least one nozzle onto an ejection object while the moving section moves the carriage. A vibration generating section vibrates the droplet ejecting head in such a manner that vibration of liquid held in the at least one nozzle includes a component in the nozzle axis direction.08-06-2009
20090195580Liquid ejection control device, liquid ejection control method, liquid ejection control program, and liquid ejection device - A liquid ejection control device controlling a liquid ejecting mechanism having a plurality of liquid ejection heads, includes a dividing unit to which image data consisting of a plurality of pixels is inputted and which divides the image data into a plurality of pieces of divided image data, each corresponding to pixels which undergo a liquid ejection, of each of the liquid ejection heads, a correction data acquiring unit which acquires correction data eliminating a deviation of liquid ejection locations of the plurality of liquid ejection heads, a correcting unit which corrects the divided image data on the basis of the correction data, and a liquid ejection controlling unit which performs liquid ejection control by which each of the liquid ejection heads is driven on the basis of the divided image data which is corrected.08-06-2009
20090195581SYSTEMS AND METHODS FOR PRINT HEAD CALIBRATION - Systems and methods for print head calibration. In an exemplary embodiment, the method may include scanning an image on a print media to obtain an optical density profile. The method may also include selecting at least one window in the optical density profile. The method may also include generating an average profile for each window. The method may also include identifying variations in uniformity.08-06-2009
20100149244Printhead IC With Multiple Operating Modes - A printhead IC for receiving print data from a print engine controller (PEC) which may be one of a plurality of different types of PEC. The printhead IC has an array of nozzles for ejecting drops of printing fluid onto a media substrate and drive circuitry for driving the array of nozzles. The drive circuitry is configured for connection to a power source in the printer. The drive circuitry is configured to reset itself to a known initial state in response to receiving power from the power source after a period of not receiving power from the power source.06-17-2010
20110187779INKJET RECORDING APPARATUS AND RECORDING POSITION ADJUSTMENT METHOD - The present invention preferentially sets an adjustment value of a nozzle array having a deviation amount in a conveyance direction which exceeds a threshold amount, and sets the adjustment value in such a manner that the total of deviation amounts of a plurality of nozzle arrays can be minimized.08-04-2011
20130208038LIQUID SUPPLYING MECHANISM, COMPUTER READABLE MEDIUM AND IMAGE FORMING APPARATUS - A liquid supplying mechanism includes a control unit that controls a first pressure adjusting unit and a second pressure adjusting unit by control parameters each having a given initial value on the basis of a supply pressure detected by a first detecting unit and a discharge pressure detected by a second detecting unit, respectively, so that the supply pressure is higher than the discharge pressure while a back pressure at a nozzle surface is maintained at a given value, and when deviations of the detected supply pressure and the detected discharge pressure with respect to the corresponding target pressure value exceed a given reference value, controls each of the first pressure adjusting unit and the second pressure adjusting unit by changing the control parameters from the initial values.08-15-2013
20130076820Dynamic Inkjet Nozzle Flushing Mechanism - A method is disclosed. The method includes analyzing an image of a first flushing pattern applied on a medium during production of a print job to detect presence of one or more defective ink jet nozzles and adjusting to a second flushing pattern during the production of the print job upon detecting the presence of one or more defective print head nozzles.03-28-2013
20100085397PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus includes a transporting unit that transports a printing medium in a transport direction. A print head group has print heads disposed at an interval in the transport direction. Each of the print heads has ink ejecting nozzles in a range substantially perpendicular to the transport direction, including a margin area outside an image forming area in the printing medium. Image detection units correspond to the print heads except for at least the uppermost upstream side print head in the transport direction. A printing control unit controls the print heads so that the print heads eject ink on the printing medium. The uppermost upstream side print head prints a reference timing pattern on the margin area. A print head corresponding to the detection unit prints a checking timing pattern when the reference timing pattern is detected, thereby controlling the ink ejection timing of the printing apparatus.04-08-2010
20080259109INK JET PRINTER AND A METHOD OF COMPUTING CONVEYANCE AMOUNT OF A CONVEYANCE ROLLER OF THE INK JET PRINTER - A method of computing a conveyance variance from a difference of two adjustment patterns in order to measure a variance in a conveyance amount occurring while a sheet is conveyed. By using this method, the variance that occurs during one rotation of the roller occurring because of the roller accuracy, deflection of the roller, and the attachment of a roller supporting member can be alleviated. Thus, the unevenness occurring synchronously to one rotation of the roller can be alleviated, and as a result, an ink jet printer that is capable of printing with high quality can be provided.10-23-2008
20080259108Ink ejection amount measurement method and ink ejection amount measurement system - The ink ejection amount measurement method for an inkjet recording head, includes: an ink ejection step of ejecting ink onto a recording medium from a recording head by applying a drive voltage to the recording head, in such a manner that an ink dot image is formed on the recording medium; an image reading step of reading the ink dot image formed on the recording medium by means of an image reading device; a number of pixels measurement step of measuring number of pixels occupied by the ink dot image formed on the recording medium; a correlation table preparation step of preparing a correlation table representing a correlation among a value of the drive voltage, number of pixels occupied by an ink dot image formed on the recording medium, and an ink ejection amount ejected by the recording head; a drive voltage sweeping step of changing a value of the drive voltage applied to the recording head, from a first drive voltage measurement value which is a value of the drive voltage when the number of pixels measured in the number of pixels measurement step is a first number of pixels, to a second drive voltage measurement value which is a value of the drive voltage at a boundary where the number of pixels measured in the number of pixels measurement step changes from the first number of pixels to a second number of pixels; and an ink ejection amount calculation step of calculating the ink ejection amount when a drive voltage having the first drive voltage measurement value is applied to the recording head, according to the correlation table, using the first drive voltage measurement value and the second drive voltage measurement value.10-23-2008
20080259107SENSING OF FLUID EJECTED BY DROP-ON-DEMAND NOZZLES - Various apparatus and methods relating to determining a quantity measurement of fluid ejected by drop-on-demand nozzles and modifying the ejection parameters based upon the quantity measurement.10-23-2008
20110193908INKJET PRINTING DEVICE WITH COMPENSATION FOR JET VELOCITY - The invention relates to a process for compensating for effects related to variations in the velocities of electrically charged ink drops (08-11-2011
20110193907LIQUID EJECTING APPARATUS, METHOD AND PROGRAM OF CONTROLLING FLUID EJECTING APPARATUS, AND TARGET - Provided is a fluid ejecting apparatus ejecting a fluid in a set ejection area of a target, including: a transport unit transporting the target; a fluid ejection unit moving in a perpendicular direction perpendicular to a transport direction of the target and being capable of ejecting the fluid from a nozzle to the target; a mark detection unit moving in the perpendicular direction together with the fluid ejection unit and being capable of detecting a predetermined mark formed in the target; a before-ejecting distance acquisition unit acquiring a before-ejecting distance; and a control unit controlling the transport unit and the fluid ejection unit based on the acquired before-ejecting distance so that the target is transported by the transport unit and the fluid is ejected from the nozzle to the set ejection area while the fluid ejection unit moves in the perpendicular direction.08-11-2011
20110193906FLUID EJECTING APPARATUS - A fluid ejecting apparatus includes a fluid ejecting head having nozzle rows formed by a plurality of nozzles, in which a fluid is ejected from the nozzle rows. The fluid ejecting apparatus includes a linear absorbing member which extends along the nozzle row, is installed so as to move from one side of the nozzle row to the other side, and absorbs the fluid ejected from the nozzles, the linear shaped absorbing member absorbing the fluid ejected from the nozzles, a running mechanism which runs the absorbing member from the one side of the nozzle row to the other side, a detection mechanism which detects a running speed of the absorbing member run by the running mechanism, and an adjustment unit which adjusts the running speed of the absorbing member run by the running mechanism based on the running speed of the absorbing member detected by the detection mechanism.08-11-2011
20110193905PRINTING DEVICE - A printing device includes a plurality of heads, a movement mechanism, and a calculation unit. The heads are configured to print an image on a medium by discharging colored inks onto the medium. The heads discharge the inks at different positions in a predetermined direction. The movement mechanism is configured to move the medium and the heads in the predetermined direction relative to each other. The calculation unit is configured to determine respective discharge amounts of ink discharged from each of the heads when the image is printed. A position in the predetermined direction, in which the inks are discharged from the heads, is varied based on the discharge amounts determined by the calculation unit.08-11-2011
20110193904INK JET RECORDING HEAD - An ink jet recording head includes a nozzle array and discharge energy generation elements. The nozzles include discharge ports to discharge liquid when recording, pressure chambers to communicate with respective discharge ports, and liquid flow paths to supply liquid to the respective pressure chambers. The discharge energy generation elements apply discharge energy to the pressure chambers to discharge liquid from the nozzles in a predetermined order during time-division driving. Arranging intervals of the liquid flow paths take at least two different values. When a drive timing difference average between the adjacent discharge energy generation elements is calculated by a particular expression, a relationship of D≧Y is satisfied between an interval D and an interval Y in a k-th discharge energy generation element and a k+1-th discharge energy generation element positioned adjacent to the k-th discharge energy generation element. The intervals D and Y represent distances between particular liquid flow paths.08-11-2011
20130076824IMAGE AND PRINTHEAD CONTROL - A method of preparing a two-dimensional bit-mapped image is disclosed in which the image has n pixels per row for printing using one or more printheads each having a row of ejection locations. Each ejection location has associated ejection electrodes to which a voltage is applied sufficient to cause particulate agglomerations to be formed from within a body of printing fluid. In order to cause charged particulate agglomerations to be ejected as printed droplets from selected ejection locations, voltage pulses of predetermined amplitude and duration, as determined by the respective bit values of the individual pixels of rows of the image, are applied to the electrodes of the selected ejection locations.03-28-2013
20130076821PRINTER AND MEDIUM FOR STORING PRINTING CONTROL PROGRAM - A printer includes a memory that memorizes a value of a maximum stroke and a processor that executes a process. The process includes calculating a maximum stroke time that lasts from when a print pin arranged in a printhead is projected from the printhead by the maximum stroke to when the print pin is retracted in the printhead, setting an adjustment printing area on the printing medium, and switching a movement timing of the printhead in accordance with the maximum stroke time when a printing position of the printhead falls within the adjustment printing area set on the printing medium.03-28-2013
20130076823NOZZLE SHADING METHOD, AND AN INKJET PRINTING APPARATUS USING SAME - An inkjet printing apparatus includes a plurality of nozzles for discharging ink, a CIS (Contact Image Sensor) type scanner for reading, as image data, charts for correction printed in the ink discharged from the nozzles, light emitters for emitting light to the charts for correction, a scanner controller for causing the scanner to scan the charts for correction with a plurality of read conditions, a correction table creator for creating nozzle shading correction tables based on the image data read, and a shading corrector for carrying out shading correction for the nozzles based on the correction tables.03-28-2013
20130076822PRINTING APPARATUS AND PRINTING METHOD - When a paper jam is detected, in the case where the cause of the paper jam is a CR motor error in which the speed of the carriage is decreased by as much as a load when the paper jam occurs and becomes equal to or less than a set speed, when there is an instruction to continue printing, cleaning is performed on a printing head. In this case, it is determined whether the paper position is particularly in a one-side supporting range in which the paper is supported by only one pair of transporting roller pairs provided in each of an upstream side and a downstream side of a transporting direction of the paper with interposing of a moving path of the printing head. Then, it is preferable that cleaning be performed as long as the paper position is in the one-side supporting range.03-28-2013
20130083110IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus includes: a recording head including first and second head modules, each of the first and second head modules having recording elements arranged to perform a recording operation onto a recording medium, the first head module being arranged in a first orientation on the recording head, the second head module being arranged in a second orientation on the recording head, the second orientation being rotated from the first orientation; a signal processing device configured to select, from print data for one page, print data to be used in one recording operation respectively for the recording elements, and to arrange the selected print data in a prescribed recording element sequence for each of the first and second head modules regardless of the first and second orientations; and a data transfer device configured to transfer the arranged print data for each of the first and second head modules.04-04-2013
20130083111RECORDING APPARATUS AND RECORDING METHOD - In a mask pattern used in effecting multi-path recording, (A) a recording permission ratio in each pixel row of a non-boundary area of a first pattern portion corresponding to a first nozzle block is substantially a first value, and a recording permission ratio in each pixel row of a non-boundary area of a second pattern portion corresponding to a second nozzle block adjacent the first nozzle block is substantially a second value, and (B) in a boundary area including a boundary between the first pattern portion and the second pattern portion, the recording permission ratio in each pixel row is between the first value and the second value, and the recording permission ratios in each pixel line are made different depending on a position with respect to a scanning direction. In-band and inter-band unevenness and a connecting stripe are reduced by (A) and (B), respectively.04-04-2013
20130033535System and Method for Dynamic Stretch Reflex Printing - A method of adjusting the operation of printheads in a printing system with a moving sheet carrying device has been developed. The method includes identifying a first amount of sheet carrying device displacement and second amount of sheet carrying device displacement as the sheet carrying device carries a media sheet past first and second printheads, respectively, for imaging of a predetermined location of the media sheet. A time for operating the second printhead is adjusted based on a difference between the first sheet carrying device offset and the second sheet carrying device offset to provide color registration between ink drops of the first printhead and second printhead on the media sheet.02-07-2013
20130038655PRINTING APPARATUS AND DENSITY CORRECTION METHOD - It is an object of the present invention to provide a technique which is capable of always achieving excellent print quality even in any use environment. In order to attain this object, a provisional print read data acquisition part displays provisional print read data which is acquired by reading a provisional printed matter, on a display part. When a user selects a position in the provisional printed matter through a provisional print read data display screen on which the provisional print read data is displayed, a selected position corresponding head specifying part specifies a head which performs printing on the selected position which is received and determines the head as a head to be corrected. A density correction part corrects the density of a printing area of which the head to be corrected is in charge.02-14-2013
20130033536IMAGE FORMING APPARATUS INCLUDING RECORDING HEAD - An image forming apparatus includes a plurality of nozzles to discharge liquid droplets; a recording head including a pressure generator to generate a pressure to cause the nozzles to discharge liquid droplets; a droplet discharge status sensor unit to detect a droplet discharging status from each nozzle; and a maintenance controller to control a maintenance operation by a dummy discharge of liquid droplets not contributing to image formation. In such an image forming apparatus, the droplet discharge status sensor unit compares a detection result of the droplet discharge status and a preset reference threshold and determines whether the nozzle discharges normally or defectively; and the maintenance controller outputs a dummy discharge drive waveform corresponding to a difference between the detected droplet discharge status and the reference threshold to the pressure generator of the nozzle determined to be defective to cause the nozzle to discharge droplets for dummy discharging.02-07-2013
20100045721PRINT SMOOTHING METHOD - In dot matrix printing and use with a dot matrix printer, a first swath of ink dots is laid down during a first pass of a printing head. The first swath comprises a first zone (02-25-2010
20100045720Method and System for Achieving Uniform Ink and Web Temperatures for Spreading - A system for use with a phase change ink imaging device comprises a leveler roller disposed along a web path downstream from a printing station. The leveler roller is formed of a thermally conductive material and includes a heater configured to generate thermal energy to heat the leveler roller to a leveling temperature. The leveler roller is positioned to be partially wrapped by the continuous web in order to generate a predetermined dwell time between the continuous web and the leveler roller as the continuous web is being moved. The predetermined dwell time is configured to allow conductive heat transfer to occur between the continuous web and the leveler roller to equalize the continuous web and the melted phase change ink temperatures on the web to within a predetermined range about the leveling temperature. A midheater is disposed along the web path downstream from the leveler roller. The midheater is configured to heat the continuous web and the melted phase change to a midheating temperature that is greater than the leveling temperature.02-25-2010
20100007687INK-JET RECORDING METHOD - An ink-jet recording method is provided. The ink-jet recording method includes (i) supplying an aqueous treatment liquid containing a fixing agent for fixing the components contained in an aqueous ink, on an art paper or a coat paper, in an amount of from −50% to +30% with respect to the value of ΔV [ml/m01-14-2010
20100110133IMAGE FORMING DEVICE THAT PERFORMS BI-DIRECTIONAL PRINTING WHILE CALIBRATING CONVEYING AMOUNT OF RECORDING MEDIUM - An image forming device includes a print head that performs a bi-directional printing including a forward print and a reverse print, and a convey-amount determining unit that determines a conveying amount based on a value relating to an amount of offset between a first position on the recording medium at which a first test image is formed in the forward print and a second position at which a second test image is formed in the reverse print. The recording medium is conveyed the conveying amount prior to one of the forward print and the reverse print.05-06-2010
20080266344Liquid Ejector and Method for Ejecting Liquid - A liquid discharge apparatus that is capable of setting a proper deflection amount for deflecting an ink discharge direction even when the distance between the ink discharge surface and the ink landing surface of print paper varies and method of using same. The liquid discharge apparatus includes a head in which a plurality of nozzle-incorporated ink discharge sections are arrayed, discharge direction deflection means for deflecting the discharge direction of an ink discharged from a nozzle of each ink discharge section in the direction of ink discharge section arrangement, distance detection means for detecting the distance between the ink discharge surface of the head and the ink landing surface of print paper, and discharge deflection amount determination means for determining the ink discharge deflection amount (discharge angle) to be provided by the discharge direction deflection means in accordance with the results of detection by the distance detection means.10-30-2008
20100026750PRINTING APPARATUS AND PRINTING SYSTEM WITH A PLURALITY OF MOVABLE SENSORS FOR A PLURALITY OF FEATURES DETECTION - A printing apparatus according to the present invention includes a movable head that performs recording on a medium using ink; a first sensor that can move together with said head and that detects regular reflection light from said medium; and a second sensor that is provided separately from said first sensor, that can move together with said head and that detects diffuse reflection light from said medium.02-04-2010
20130027456PRINTING APPARATUS - A printing apparatus, which includes a heating unit for heating a recording medium during printing, determines a pass number for multi-pass printing based on acquired information relating to the duty in each of a plurality of regions in one band of print region. The printing apparatus sets an amount of heat of the heating unit based on the acquired information.01-31-2013
20130027458DISTORTION COMPENSATION FOR PRINTING - A printing machine includes a substrate and at least one printhead with at least two material deposition channels which are movable with respect to the substrate, wherein the printhead is mounted on a stage which allows rotation of the printhead around an axis perpendicular to the substrate and translation in a direction perpendicular to the print direction, and wherein during each print swath, the rotation angle and translation values of the printhead are varied in order to change the pitch and the lateral position in the direction perpendicular to the print direction of material deposited from the different deposition channels; and an algorithm which computes the required rotation angles and translation values for a given pattern of substrate distortion.01-31-2013
20130027455PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus includes a print unit, an acquisition unit, and a setting unit. The print unit performs printing on a sheet by repeating reciprocating scans of a print head. The acquisition unit acquires information on a temperature of the print head. The setting unit sets a wait time to start a next scan after one scan. The setting unit increases the wait time by a predetermined additional time for each subsequent scan once a value acquired by the acquisition unit exceeds a first threshold, unless the value falls below a second threshold.01-31-2013
20130027454APPARATUS AND METHOD FOR APPLYING RELEASE FLUID TO A LEVELER IN A PRINTING APPARATUS - An apparatus and method apply release fluid to a leveler in a printing apparatus. The apparatus can include a substrate path, at least one release fluid spray nozzle, and a marking material leveling system having a marking material leveler. The method can include transporting a substrate with marking material along the substrate path. The method can include pulse spraying release fluid to the marking material leveling system using the at least one release fluid spray nozzle. The method can include leveling marking material on the substrate using the marking material leveler with release fluid. The method can include determining an adjusted amount of release fluid to spray to the marking material leveling system. The method can include pulse spraying the adjusted amount of release fluid to the marking material leveling system using the at least one release fluid spray nozzle.01-31-2013
20130027457IMAGE FORMING APPARATUS, PATTERN POSITION DETERMINING METHOD, AND IMAGE FORMING SYSTEM - A disclosed image forming apparatus includes a reading unit including a light emitting element for emitting light to a record medium, and a light receiving element for receiving reflected light; a print data storing unit storing print data of a uniform pattern which has a color different from a color of the test pattern and is provided in an area including the test pattern, a pattern forming unit printing the test pattern on the uniform pattern after the uniform pattern is printed, a relatively moving unit moving the record medium or the reading unit relatively at a constant speed, a first detection data obtaining unit obtaining first detection data received as the reflection light while the light moves and impinges on the test pattern, and a position detecting unit providing a calculation for determining a position of a line of the test pattern to detect the test pattern.01-31-2013
20100328386RECORDING APPARATUS, RECORDING METHOD, PROGRAM, AND COMPUTER SYSTEM - A recording apparatus can be prevented from becoming dirty, for example, due to incorrectly loading a recording medium. If a width of the recording medium that has been detected by the detection means is shorter than a width, in the direction that intersects the carrying direction of the recording medium, over which the recording information is to be recorded, then a portion of the recording information, of the entire recording information, corresponding to the width, or to less than the width, of the recording medium that has been detected by the detection means is recorded onto the recording medium by the recording head. A notice is made when the width of the recording medium that has been detected by the detection means is different from a width of the size of the recording medium that has been set with the setting means. The ON/OFF of an operation through which the detection means detects the width of the recording medium is settable.12-30-2010
20120182343METHOD TO EXECUTE A PAUSE FUNCTION DURING THE PRINT OPERATION IN AN INKJET PRINTING - In a method to execute a pause function in an inkjet printing system with at least one printing apparatus, the pause function is triggered to reduce a feed speed of the printing substrate web from a speed during printing operation to a predetermined speed for a predetermined duration. The duration is selected so that the printing substrate has suitable properties with regard to at least one of the elements selected from the group consisting of moisture and temperature under the printing unit of the printing apparatus at an end of the pause function. After ending the pause function, the printing substrate web is accelerated again to the speed during the printing operation.07-19-2012
20120182342HIGH-SPEED PAGE WIDE MULTIPLE-PASS PRINTING METHOD AND A PRINTING DEVICE ADAPTIVE TO THE HIGH-SPEED PAGE WIDE MULTIPLE-PASS PRINTING METHOD - The present invention relates to a high-speed page wide multiple-pass printing method, comprising the steps of: (a) providing a printing device and a medium, wherein the printing device comprises a control unit, a printing module and a storing module; (b) the control unit receiving and grouping the data into an odd-number group and an even-number group, then storing the grouped data in the storing module and transmitting a printing order; (c) the printing module receiving the printing order, extracting the data grouped into the odd-number group, and executing a first ink-jet printing operation to a printing region of the medium; (d) the printing module extracting the data grouped into the even-number group and executing a second ink-jet printing operation to the printing region; and (e) the printing module completing the second ink-jet printing operation for forming a complete printing image on the medium.07-19-2012
20130070012LIQUID EJECTION HEAD, LIQUID EJECTION APPARATUS AND ABNORMALITY DETECTION METHOD FOR LIQUID EJECTION HEAD - A liquid ejection head includes: a nozzle plate formed with a nozzle aperture through which liquid is ejected; and a flow channel plate formed with at least a flow channel connected to the nozzle aperture, the flow channel plate being bonded to the nozzle plate with the flow channel aligned to the nozzle aperture in the nozzle plate, wherein the nozzle plate is provided with a detection element configured to detect a mechanical abnormality in the nozzle plate.03-21-2013
20130050325RECORDING DEVICE, METHOD OF CONTROLLING A RECORDING DEVICE, AND STORAGE MEDIUM STORING A PROGRAM EXECUTED BY A CONTROL UNIT THAT CONTROLS A RECORDING DEVICE - The time required for a nozzle check is minimized without reducing the accuracy of the nozzle check. An inkjet line printer has a nozzle check control unit that performs a nozzle check to detect ejection problems in the nozzles of plural nozzle rows of the inkjet line head. The nozzle check control unit applies the nozzle check to a portion of the nozzles in the group of nozzles in a specific range where two mutually overlapping nozzle rows overlap.02-28-2013
20130050326METHOD FOR ACTIVATING A PROCESSING DEVICE AND PROCESSING DEVICE ACTIVATED IN SUCH A WAY - To activate a processing device which processes a surface of a moving work piece at regular intervals, wherein a predetermined time duration passes between an activation signal of the processing device and the processing on the surface, the movement of the work piece is sensed with a sensor that generates work pulses. A respective control pulse is generated if a predetermined number of work pulses has been generated. A number of the work pulses is repeatedly detected in a respective time interval that corresponds to the predetermined time duration. The activation signals are each generated at each control pulse of a series, and the activation signals are offset forward in time relative to the respective control pulse corresponding to the number of work pulses that have been detected in the respective time interval. The activation signals are output to the processing device.02-28-2013
20130088540INKJET PRINTING APPARATUS - An inkjet printing apparatus for printing images on printing paper by discharging ink while moving inkjet heads and the printing paper relative to each other. The apparatus includes an inkjet head holder for holding the inkjet heads, a controller for operating a plurality of motors to move the inkjet head holder vertically at least between a printing position and an origin position, and a monitoring unit for monitoring, during a vertical movement caused by the controller, synchronous rotations of the plurality of motors, and corresponding directions of rotation of the plurality of motors.04-11-2013
20090315936RECORDING APPARATUS AND CONTROL METHOD - With a recording apparatus and a control method of the recording apparatus, a pattern is recorded, and the pattern is used for determining whether a recording position is deviated. Only when it is determined that the recording position is deviated, a plurality of patterns are additionally recorded and an adjustment value is acquired.12-24-2009
20090303272ARRAY HEAD TYPE INKJET IMAGE FORMING APPARATUS AND METHOD OF COMPENSATING ALIGNMENT ERRORS THEREOF - A method of compensating for alignment errors includes determining a degree of overlap between nozzles of a plurality of head chips; checking driving information corresponding to the determined degree of overlap between nozzles, from a pre-provided compensation table, and controlling the driving of the nozzles in an overlapping area, according to the checked driving information.12-10-2009
20120218336IMAGE FORMING APPARATUS, PATTERN POSITION DETERMINING METHOD, AND IMAGE FORMING SYSTEM - An image forming apparatus is disclosed which reads a test pattern formed by ejecting liquid droplets onto a recording medium to adjust an ejection timing of the liquid droplets. The image forming apparatus includes a reading unit; a relative movement unit; a second detected data obtaining unit; a first detected data obtaining unit; a subtraction processing unit which subtracts a value comparable to a local minimum value of first detected data sets from each of the first detected data sets and second detected data sets; and a signal correction unit which calculates a proportion of the subtracted first detected data sets relative to the subtracted second detected data sets to align a local maximum value of the first detected data sets such that it is generally constant.08-30-2012
20090091594HEAD SUBSTRATE, PRINTHEAD, HEAD CARTRIDGE, AND PRINTING APPARATUS - This invention is directed to: a printhead substrate which employs a constant current driving method and can suppress power consumption in a standby state, prevent an increase in printhead temperature, and stably discharge ink; a printhead using the printhead substrate; a head cartridge incorporating the printhead; and a printing apparatus using the printhead. The head substrate includes a plurality of printing elements; a plurality of driving elements which are provided in correspondence with the plurality of printing elements and drive the plurality of printing elements; a reference voltage generation circuit which generates a reference voltage; a reference current generation circuit which generates a first reference current on the basis of the generated reference voltage; a plurality of constant current sources, each of which generates a constant current to drive the plurality of printing elements on the basis of the generated first reference current; and a switch which controls supply of the first reference current in accordance with a printing operation.04-09-2009
20110057975RECORDING APPARATUS - A recording apparatus for performing recording by scanning a recording head includes an acquisition unit configured to acquire temperature information of the recording head, a generation unit configured to generate a signal that indicates outputting of an output voltage based on the temperature information, a voltage control unit configured to control a voltage to be output to the recording head based on the signal, and a control unit configured to simultaneously perform preliminary ejection processing in an interval between a previous scan and a next scan of the recording head and output processing of the signal.03-10-2011
20110057973INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - The present invention provides an ink jet printing apparatus and an ink jet printing method in which even with a variation in ink ejection amount depending on an image print area, the ink ejection amount for preliminary ejection can be optimally set. For this purpose, a print area is divided into a plurality of areas, and the number of ink ejections through a nozzle is measured for each of the areas. Based on the number of ink ejections for each area, the number of ink ejections for the preliminary ejection is determined.03-10-2011
20100097420Printer - When the number of sheets that have been printed has reached the number of sheets guaranteed for printing, a number representing a upper limit of the number of sheets that can be printed, an ink jet printer declines to perform printing with an ink cartridge for which the number of sheets guaranteed for printing has been set, but when the number of sheets printed has not reached the number of sheets guaranteed for printing, performs printing of an image onto a recording sheet S by using the ink cartridge, the ink jet printer determining the number of sheets remaining N on the basis of the number of sheets printed that have been printed, and displaying on a display unit 04-22-2010
20090267982IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus which forms a halftone image on a print medium (10-29-2009
20090267981INK JET PRINTING APPARATUS AND PRINTING METHOD - A dark color (for example, cyan) ink dot formed by preliminary ejection can be made less noticeable, and the influence on the printing quality can be reduced, even in a case where the dark color ink is preliminarily ejected onto a light color (for example, yellow) image area. For this purpose, in a case where the dark color ink is preliminarily ejected onto the image area of high lightness, the amount of the ink applied for printing the area is reduced. For example, in a case where a cyan ink is preliminarily ejected onto an area to be formed of yellow dots, a piece of data for forming the yellow dot in the preliminary ejection position is deleted. This reduces an overlapping area of the yellow area and the ink dot formed by the preliminary ejection, and thus makes the ink dot formed by the preliminary ejection less noticeable.10-29-2009
20120223994DOT FORMATION POSITIONING DEVICE, RECORDING METHOD, SETTING METHOD, AND RECORDING PROGRAM - To improve positioning accuracy in a direction of relative movement of dots which are formed by a fluid ejection device in which a plurality of nozzle groups contained in the direction of the relative movement of the head section contain a plurality of nozzles in the direction of the relative movement, an ejection timing is set for adjusting in a direction of the relative movement the positions of dots formed by each of nozzle groups. A distribution of adjustment pixels is set for adjusting in the direction of the relative movement the positions of dots formed by each of nozzles. A fluid is ejected in accordance with raster data generated on the basis of a distribution of the adjustment pixels set by an adjustment pixel setting unit, on the basis of ejection timing set by a nozzle group timing setting unit.09-06-2012
20120223993IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus includes: a head unit that ejects ink; and a control unit that creates pixel data showing the amount of the ink ejected on predetermined pixels, and ejects metallic ink containing metallic particles from the head units such that the amount of the metallic ink is smaller than the amount of the metallic ink shown by the pixel data in a portion of the pixel inside the pixels on the outline of a metallic image formed by the ejected metallic ink and such that the amount of the eject ink per area is larger than the amount of the metallic ink at the inside pixels in the pixels on the outline, on the basis of the pixel data.09-06-2012
20120223992INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - An ink jet printing apparatus prints an image using glitter ink with dispersed glitter pigment and clear ink which does not substantially include a color material. The ink jet printing apparatus has a first mode of ejecting substantially only the glitter ink to the printing medium to form the image by an ink jet method, and a second mode having a process of ejecting the glitter ink to the printing medium to form a first image by an ink jet method and a process of ejecting clear ink onto the first image by the ink jet method to form a second image, to form the image formed of the first image and the second image. A mode is selected from the first mode and the second mode to print the image on the printing medium.09-06-2012
20120223991IMAGE FORMING APPARATUS, DROPLET DISCHARGE DETECTING METHOD IN THE IMAGE FORMING APPARATUS, AND COMPUTER PROGRAM PRODUCT - An image forming apparatus includes: a droplet discharging head that includes nozzle rows; a light emitting unit that irradiates a droplet with laser light emitted in a direction intersecting a discharging direction of the droplet; a light-receiving unit that receives scattered light scattered when the droplet is irradiated by the laser light and outputs a signal corresponding to an amount of the scattered light; and a droplet discharge detecting unit that detects a droplet discharging status of the nozzles based on the signal. The laser light is emitted with an optical axis shifted from middle between two adjacent nozzle rows; and the droplet discharge detecting unit selects two nozzles adjacent in a direction intersecting the nozzle rows as detection target nozzles, and detects the droplet discharging status of the detection target nozzles based on the scattered light scattered when droplets are simultaneously discharged from the detection target nozzles.09-06-2012
20110063354PRINTING METHOD FOR REDUCING STITCH ERROR BETWEEN OVERLAPPING JETTING MODULES - A method of printing is described for a page-width printer including a line head having a plurality of jetting modules that are staggered in a page-width direction. In a set up procedure, a test pattern is printed using the nozzles of adjacent jetting modules, and the pattern is analyzed to detect a stitch error in the overlap regions. The results of this analysis is used to calculate a set of correction values to be applied to print data subsequently sent to nozzles of the adjacent jetting modules to make a correction for the stitch error. During a subsequent production run, the print data sent to the nozzles of the adjacent jetting modules is analyzed to sense an image content attribute, such as gray or density level, of the print data. These results of the analysis of the print data is then used to calculate a dynamic adjustment that is used to adjust the set of correction values calculated during the set up procedure. The line head is then used to print the corrected print data by applying the set of adjusted correction values to production print data subsequently sent to the jetting modules.03-17-2011
20110063353IMAGE FORMING DEVICE - An image forming device includes: an endless transport belt in which a plurality of through holes are formed, the transport belt circulating to carry sheets; a recording head with a plurality of nozzles through which ink droplets are discharged, the nozzles being arranged in a width direction of the transport belt. The image forming device performs preliminary discharge of ink droplets in which the ink droplets discharged through the nozzles pass through the through holes. The image forming device further includes: a sensor that detects an element to be detected formed on the transport belt when the transport belt circulates; and a preliminary discharge control unit that controls timings of discharge of ink droplets through the nozzles in the preliminary discharge based on a plurality of results of detecting the elements to be detected given from the sensor.03-17-2011
20110063352Recording apparatus and control method therefor - A disclosed recording apparatus includes a carriage having a recording head including nozzles, a moving unit configured to move the carriage, a platen including plural plate members connected in a carriage traveling direction to support a recording medium, a transferring unit to transfer the recording medium in a direction perpendicular to the carriage traveling direction, a recording control unit to record patterns at predetermined positions to form a carriage traveling direction pattern array plural times in a transferring direction of the transferring unit by changing relative recording times for recording the carriage traveling direction pattern array in forward and backward traveling directions, a determination unit to determine ink ejecting times at the predetermined positions, and a time control unit to linearly interpolate between the determined ink ejecting times at the predetermined positions to control ink ejecting times for intervals between the predetermined positions based on the obtained linear interpolation.03-17-2011
20130063511FLUID JETTING WITH DELAYS - Please replace the abstract at page 29 with the following amended abstract: Among other things, the disclosure features a system for use in fluid jetting. The system comprises a first print module comprising a first row of nozzles, a second print module comprising a second row of nozzles, and a controller to receive a first data packet from a remote device at a first moment and a second data packet from the remote device at a second moment after the first moment. Upon receipt of the first data packet, the controller is configured to cause at least some nozzles in the first row, at a third moment, to eject fluid droplets onto a line on a substrate. Upon receipt of the second data packet, the controller is configured to cause at least some nozzles in the second row, at a fourth moment separated from the third moment by a time delay, to eject fluid droplets onto the line on the substrate.03-14-2013
20130063514LIQUID EJECTING APPARATUS THAT CONTROLS EJECTING TIMINGS AND NON-TRANSITORY STORAGE MEDIUM USED IN THE SAME - In a liquid ejecting apparatus, a recording medium is conveyed by only a first conveying device during a first period, by only a second conveying device during a second period, and by both the first and second conveying device during a third period. The recording medium is conveyed, in theory, at first and second conveying speeds during the first and second periods respectively. A transition period is set from the first period to the third period or from the third period to the second period. The head controller controls a ejecting head during a period prior to the transition upon assuming that the conveying speed is the first conveying speed, during a period after the transition upon assuming that the conveying speed is the second conveying speed, and during the transition period upon assuming that the conveying speed is a third conveying speed between the first and second conveying speeds.03-14-2013
20130063512IMAGE FORMING APPARATUS, IMAGE CORRECTION METHOD, AND NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM STORING IMAGE CORRECTION PROGRAM - Disclosed is an image forming apparatus that includes a recording head for forming an image by discharging single color ink from plural nozzle sequences. The image forming apparatus includes a profile generating unit configured to generate a profile including discharging characteristics of the corresponding nozzle sequences and information indicating a positional relationship among the plural nozzle sequences, based on individual images of a predetermined pattern that have been formed by the corresponding nozzle sequences and images that have been formed by the nozzle sequences; and a driving condition determination unit configured to determine drive conditions of the corresponding nozzle sequences by referring to the profile.03-14-2013
20130063513INK-JET RECORDING APPARATUS - A liquid ejection apparatus includes a liquid ejection head, a conveyor, a recording controller, and a flashing controller. The conveyor conveys a recording medium along a conveyance path. The recording controller causes the conveyor to convey a recording medium, and controls liquid ejection from the liquid ejection head to form an image on the recording medium based on image data. The flashing controller causes the conveyor to temporarily stop conveyance of the recording medium, and causes liquid ejection from the liquid ejection head based on drive data which is unrelated to image formation. The flashing controller determines timing for executing a subsequent flashing control so that, within a print enforceable period between one flashing control and the subsequent flashing control, the number of pages subjected to image formation based on image data increases with a decrease in time interval between image formation on one page and on another page.03-14-2013
20090244148LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes a liquid ejecting head disposed on a transport path of a target to eject a liquid from nozzles at a nozzle forming surface, a liquid receptor transport unit transporting a liquid receptor for receiving the liquid ejected from the nozzles as a waste liquid such that the liquid receptor passes through a position opposite the nozzle forming surface on the transport path, and a control unit controlling a liquid ejection timing from the nozzles of the liquid ejecting head such that, when the liquid receptor to be transported by the liquid receptor transport unit passes through the position opposite the nozzle forming surface, the liquid is ejected from the nozzles within a predetermined range of liquid receiving area, which is set at a central portion, excluding edge portions in a movement direction, on a surface of the liquid receptor opposite the nozzle forming surface.10-01-2009
20090237436LIQUID DROPLET JETTING APPARATUS - A liquid droplet jetting apparatus includes a liquid droplet jetting head which is movable in a predetermined scanning direction, and a wind-velocity sensor which measures a wind-velocity around the liquid droplet jetting head. A drive signal to be supplied to the liquid droplet jetting head is adjusted based on the wind-velocity information obtained by the wind-velocity sensor. Accordingly, it is possible to provide a liquid droplet jetting apparatus which is capable of suppressing a shift in a landing position of liquid droplets, which is due to a wind-velocity around the liquid droplet jetting head.09-24-2009
20090237435DROPLET EJECTION HEAD CONTROL DEVICE AND CONTROL METHOD, AND PROGRAM STORAGE MEDIUM - A droplet ejection head control device includes a pressure alteration section, a detector and a controller. The droplet ejection head is provided with plural nozzles and is supplied with a liquid. The pressure alteration section alters a pressure inside the droplet ejection head. The detector detects a position of a boundary of liquid which is exuded onto a nozzle face from at least one nozzle of the droplet ejection head in accordance with the pressurization at the inside of the droplet ejection head. After the pressurization of the interior of the droplet ejection head commences, the controller controls the pressure alteration section on the basis of detection results from the detector such that the pressurization is stopped just (immediately) before respective boundaries of the liquid exuded onto the nozzle face from neighboring nozzles come into contact.09-24-2009
20130162709METHOD FOR PRINTING ON LOCALLY DISTORABLE MEDIUMS - Methods for operating a printing system are provided. In one method, an inkjet image is printed on a receiver using a hydrophilic ink and an image of the receiver is captured after predetermined period of absorption. Local areas of the image of the inkjet print that have reached a threshold level of non-uniform distortion and where additional ink remains for absorption are identified. A distortion estimate is determined for distortion of the receiver at a time when a second image will be printed on the receiver based upon information from the identified areas. A second print image is printed based on the distortion estimate; and, the second image is printed.06-27-2013
20130162710REAL-TIME LINEFEED MEASUREMENT OF INKJET PRINTER - Disclosed is a method of determining line feed error in an image forming apparatus for printing an image, said image forming apparatus comprising a print head having a head sensor configured to sense information from the image printed on a print medium, said method comprising the steps of printing a first swath of the image on the print medium, repositioning the print head relative to the print medium by at least one line feed distance, determining a line feed error based upon information sensed from the printed first swath by the head sensor, and printing, using the determined line feed error, a second swath of the halftone image on the print medium.06-27-2013
20120236057IMAGE FORMING APPARATUS AND COMPUTER PROGRAM PRODUCT - Print head for black material is arranged such that the black material is to be ejected later than cyan, magenta, and yellow materials on both of forward and backward strokes, and the print heads for the cyan, magenta, and yellow materials are arranged in tandem in a main-scanning direction. The first processing unit converts input image data into CMY image data and then performs black generation and undercolor removal on the CMY image data, to obtain CMYK image data. The second processing unit converts CMY image data excluding K image data from the CMYK image data into image data for use in printing in the backward direction. The on/off switching unit switches between causing and not causing the second processing unit to covert the CMY image data depending on which one of printing in the forward stroke and printing in the backward stroke is to be performed.09-20-2012
20120236056LIQUID EJECTION APPARATUS - A liquid ejection apparatus comprises a head, a conveyor, an image dot controller, a determiner and a non-image dot controller. The determiner determines whether an image dot non-forming period is equal to or longer than a predetermined time period. The non-image dot controller controls the head so that each ejection opening, whose image dot non-forming period is equal to or longer than the predetermined time period, ejects liquid once within a non-image dot forming period in the image dot non-forming period, to form on a recording medium a non-image dot, the non-image dot forming period being a period from a third time point which is after the first time point to a second time point which is the predetermined time period after the first time point, and that a plurality of the non-image dots structured by the liquid ejected from the ejection openings are scattered in a conveyance direction.09-20-2012
20100156978INKJET PRINT APPARATUS AND INKJET PRINT METHOD - The present invention relates to a print apparatus for performing a print by a scan of a print head with heaters generating thermal energy for ejecting ink. A temperature of the print head is detected before the scan of the print head, and when the detected temperature exceeds a threshold temperature, the print head is waited. Information relating to the cumulative number of drives of the heater in the print head is acquired and based upon this information, the threshold temperature is changed to a lower temperature as the cumulative number of the drives is the larger. An excessive temperature rise of the head is restricted and also a throughput reduction is reduced as much as possible.06-24-2010
20100295886IMAGE RECORDING APPARATUS AND CONTROLLING METHOD THEREOF - An image recording apparatus, in which a line head is configured by arranging a plurality of nozzles, some of which are made to overlap, of short nozzle rows each having a jetting nozzle row arranged in one direction relative to a conveyance direction of a recording medium being conveyed by a conveyance mechanism and which forms records an image by jetting ink from the jetting nozzles onto the recording medium, comprises a conveyance information generating unit which generates conveyance information indicating a conveyance distance of the recording medium, a recording medium detecting unit which detects an edge of the recording medium being conveyed, and a controlling unit which performs a density correction of an image recorded by an overlapping portion of the short nozzle rows on the basis of a detection result of the recording medium detecting unit and the conveyance information obtained from the conveyance information generating unit.11-25-2010
20120081436IMAGE PROCESSOR AND IMAGE PROCESSING METHOD - When printing an image using a plurality of inks, color unevenness caused by variations in ejection characteristics among nozzles is corrected at suitable timings in accordance with change in the color unevenness over time, and favorable image output without noticeably color unevenness is maintained. For this purpose, parameters are prepared, for colors formed by combinations of at least two colors of ink, the parameters being determined so as to reduce differences in coloration on a print medium caused by individual variations in the ejection characteristics of a plurality of nozzles. When printing, a first color signal included in individual pixels is corrected for a second color signal by using the parameters. Information regarding the ejection volume characteristics of a plurality of nozzles is acquired as appropriate, and by estimating changes in coloration from this information, suitable timings for overwriting such parameters are determined.04-05-2012
20110141177Dot Omission Inspection Method Used in Printing Apparatus and the Printing Apparatus - Provided is a dot omission inspection method used in a printing apparatus for forming an image constituted by dots of first and second photo-durable inks. In the dot omission inspection method, an arbitrary image is formed by performing liquid droplet discharge of causing a liquid droplet of the first or second ink to be landed on a medium, performing provisional curing of irradiating the landed liquid droplet using light from a first light source so as to be provisionally cured, and performing main curing of irradiating the provisionally cured liquid droplet using light from a second light source to fix the liquid droplet on the medium. An inspection image is formed without performing the provisional curing on the liquid droplet of the first ink landed on the medium by performing the liquid droplet discharge, and by causing the liquid droplet of the second ink to be landed by performing the liquid droplet discharge at the same position as the liquid droplet of the first ink which is not provisionally cured so as to mix the first ink and the second ink with each other.06-16-2011
20110279505Method For Identifying And Verifying Dash Structures As Candidates For Test Patterns And Replacement Patterns In An Inkjet Printer - A method compensates for changes in drop velocity of drops emitted by inkjets in a printhead of an ink jet imaging device. The method includes operating inkjet ejectors in a plurality of printheads to eject ink in a pattern of structured dashes on an image receiving member, the structured dashes corresponding to a predetermined image data pattern, generating image data corresponding to the pattern of structured dashes on the image receiving member, identifying a process direction correction parameter for each ejector in the plurality of printheads with reference to the generated image data, modifying image data to be printed by the plurality of printheads with reference to the process direction correction parameter identified for at least one of the ejectors, and operating the plurality of printheads with reference to the modified image data.11-17-2011
20110279504Method And System For Measuring And Compensating For Sensitivity And Backlash In Electrical Motors That Laterally Move Printheads In A Continuous Web Inkjet Printer - A method of operating a printer enables a controller in the printer to operate electrical motors for aligning printheads in the printer with greater accuracy. The method includes generating a test pattern on media with a plurality of printheads, identifying a first position for each printhead in the plurality of printheads from test pattern image data, operating an electrical motor operatively connected to one of the printheads to move the printhead in a first direction in the cross-process direction by a predetermined distance, generating a second test pattern on the media, identifying a second position for each printhead, comparing the second position of the printhead with the first position of the printhead to measure a distance moved by the printhead, identifying a first calibration parameter with reference to the predetermined distance and measured distance, and operating the electrical motor with reference to the first calibration parameter.11-17-2011
20080266343Multipass printing method - A multipass printing method comprises determining at the end of a printing pass if at least some dot depositing elements of at least one printhead require a servicing operation; in case the determination is positive, printing at least one incomplete printing pass in which at least the dot depositing elements of said at least one printhead that require a servicing operation are not operated to print; at the end of said incomplete printing pass, servicing at least said dot depositing elements of said at least one printhead; and printing at least one compensating printing pass adding to the information to be printed in said compensating printing pass at least part of the information that failed to be printed by said dot depositing elements of said at least one printhead in said at least one incomplete printing pass.10-30-2008
20100007688LIQUID JETTING APPARATUS AND LIQUID JETTING METHOD - A liquid jetting apparatus and a liquid jetting method are achieved that can prevent unexpected landing position displacement relating to satellite droplets. For example, the liquid jetting apparatus includes a head in which a nozzle row constituted by a plurality of nozzles lined up in a row is arranged at a medium-opposing surface which is in opposition to a medium, a head movement section that moves the head in a predetermined direction along a surface of the medium, a spacing adjustment section that adjusts a spacing between the head and the medium, and an ejection control section that carries out ejection control of a liquid by determining at least one non-ejection nozzle among a plurality of nozzles sandwiched between a nozzle at one end of the nozzle row and a nozzle at another end thereof, the non-ejection nozzle being a nozzle which is caused not to eject liquid, the number of the non-ejection nozzle being determined according to a spacing from the medium-opposing surface to the surface of the medium.01-14-2010
20090147038METHOD OF CLEANING FLUID EJECTING APPARATUS AND FLUID EJECTING APPARATUS - Provided is a method of cleaning a fluid ejecting apparatus including an ejection head including a plurality of ejection nozzles for ejecting a fluid to a target and a common fluid chamber from which the fluid is supplied to the ejection nozzles, the method including: performing a preliminary discharge operation for discharging the fluid from the ejection nozzles before the fluid is ejected to the target; detecting a fluid ejection state of the ejection nozzles after the preliminary discharge operation is finished; determining a processing parameter at the time of cleaning of the ejection head on the basis of the detected result; and performing cleaning with respect to the ejection heads on the basis of the processing parameter, wherein, in the performing of the preliminary discharge operation, the fluid of the amount corresponding to at least the volume of the common fluid chamber is ejected.06-11-2009
20120081438LIQUID EJECTING APPARATUS, CONTROL DEVICE, AND PROGRAM - A liquid ejecting apparatus includes: a head that contains an ejection surface where a plurality of ejection ports are opened; a sensor that detects a contact between the recording medium and the ejection surface; an ejection duty detecting unit, when the sensor detects the contact, that is configured to detect an ejection duty of the liquids of an image formed in an area of the recording medium, which comes into contact with the ejection surface; and a maintenance unit, when the sensor detects the contact, that is configured to stop an operation based on a record command and is configured to perform maintenance including compulsory ejection which ejects liquids from the ejection ports, wherein the maintenance unit adjusts the amount of the liquids, which are ejected in the compulsory ejection, according to the ejection duty, which is detected by the ejection duty detecting unit.04-05-2012
20090309911INKJET HEAD CHIP AND INKJET PRINT HEAD USING THE SAME - An inkjet head chip and an inkjet print head including the inkjet head chip includes a plurality of nozzles, a plurality of discharging units which discharge ink through the plurality of nozzles, a main pad which is electrically connected to the plurality of discharging units in order to supply a driving signal to the plurality of discharging units, and a test pad which supplies a test driving signal to some of the discharging units. The test driving signal is supplied to the test pad to determine similar printing characteristics of a plurality of inkjet head chips.12-17-2009
20120287191IMAGE PROCESSING METHOD AND IMAGE PROCESSOR - Provided are an inkjet printing apparatus and inkjet printing method that can, regardless of an ejection frequency of a print head, stabilize density of an image expressed on a print medium. For this purpose, an ink concentration integrated value is obtained according to the ejection history of each nozzle so as to be increased by data indicating non-ejection of the nozzle or decreased by data indicating ejection. Then, image data on the target pixel is corrected such that density of the target pixel is further reduced as the pixel is subjected to printing by a nozzle having a higher ink concentration integrated value.11-15-2012
20110298856RECORDING APPARATUS AND DATA PROCESSING METHOD FOR RECORDING APPARATUS - A host device sends, as setting data, data including a registration adjustment value corresponding to a relative distance between nozzle arrays in a scanning direction. A recording apparatus includes a recording buffer 12-08-2011
20110298855Defective nozzle detector and image forming apparatus and system - A defective nozzle detector is included in an inkjet recording apparatus in which a plurality of nozzles to discharge droplets is provided and a recording head including the plurality of nozzles scans while moving in a main scanning direction, thereby forming an image. The defective nozzle detector includes a sensor board on which droplets are impacted from the nozzle of the recording head, a plurality of sensor electrodes and a common electrode alternately disposed on the sensor board and arranged in patterns that intersect the main scanning direction of the recording head, and an electrostatic capacitance sensor to detect changes in the electrostatic capacitance between the sensor electrode and the common electrode.12-08-2011
20110298854Recording apparatus and control method therefor - A recording apparatus includes a carriage having a recording head including nozzles, a moving unit moving the carriage, a platen including plate members connected in a carriage traveling direction to support a recording medium when the nozzles eject ink onto the recording medium, a transferring unit transferring the recording medium in a transferring direction perpendicular to the carriage traveling direction, a recording control unit recording patterns at predetermined positions in the carriage traveling direction while moving the carriage in forward and backward traveling directions to form a carriage traveling direction pattern array, a determination unit determining ink ejecting times at the predetermined positions in the carriage traveling direction, and a time control unit to linearly interpolate between the determined ink ejecting times at the predetermined positions in the carriage traveling direction to control ink ejecting times for intervals between the predetermined positions based on a result of the linear interpolation.12-08-2011
20120105530CONTROL APPARATUS FOR A LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND CONTROL METHOD FOR A LIQUID EJECTING HEAD - A threshold passed signal indicating that a threshold for a remaining liquid amount has been passed is inputted from a threshold sensor that detects the actual remaining liquid amount in the liquid holding unit when the liquid ejection command is being executed, the control apparatus drives the liquid ejecting head so that the liquid continues to be ejected based on the liquid ejection command until the inputted liquid ejection command ends.05-03-2012
20110285776INK JET RECORDER AND RECORDING METHOD - Heretofore, when recording is performed using an ink jet recording apparatus which uses ink containing a volatile component, the temperature of the ink in a recording head may become higher, and the volatile component in the ink in proximity to a nozzle vaporizes to increase the viscosity of the ink, with the result that recording cannot be appropriately performed. Accordingly, an ink jet recording apparatus which uses ink containing a volatile component includes: a recording head including a temperature sensor for detecting temperature of ink; control means for controlling the recording head to perform idle drive operations of minutely vibrating ink menisci and preliminary discharge operations; and changing means for changing a number of times of the idle drive operations and a number of times of the preliminary discharge operations according to the temperature detected by the temperature sensor.11-24-2011
20110285775LIQUID EJECTION DEVICE AND LIQUID TESTING METHOD - A liquid ejection device includes a plurality of nozzles, an ejection testing portion and a controller. The nozzles are arranged to eject a liquid. The ejection testing portion is arranged to perform ejection testing of the liquid from each of the nozzles. The controller is arranged to eject the liquid from the nozzles to print an image onto a medium, and to perform a flushing operation when printing on the medium is not being performed. The ejection testing portion is arranged to perform the ejection testing of each of the nozzles during the flushing operation. The controller is arranged to terminate the flushing operation in midcourse when results of the ejection testing for the nozzles are normal.11-24-2011
20110285774METHOD FOR MANUFACTURING PRINTING DEVICE, PRINTING DEVICE, AND PRINTING METHOD - A method for manufacturing a printing device, wherein the printing device uses ink including pigment ink and dye ink to form a printed image on a print medium, and discharges an ink quantity according to a voltage value of a drive voltage to form ink dots on the print medium. In this printing device, the voltage value of the drive voltage for creating ink dots is corrected.11-24-2011
20100123749INK JET RECORDING APPARATUS AND INK JET RECORDING SYSTEM - An ink jet recording apparatus that executes ink jet recording based on multi-pass recording and that achieves a high glossiness and a low granularity is provided. Based on information corresponding to an ink discharge amount, distribution and concentration masks are selected for low and high duty areas of a recorded image, respectively.05-20-2010
20110292112LIQUID DISCHARGE HEAD AND INK JET RECORDING APPARATUS INCLUDING LIQUID DISCHARGE HEAD - A liquid discharge head includes a heat generating element which generates heat energy used to discharge a liquid; a temperature detecting element which changes in output voltage in response to a change in the temperature of the heat generating element; an electrical power source line and a grounding line electrically connected to each other through the heat generating element to apply a current to the heat generating element; and a pair of lines for temperature detection electrically connected to each other through the temperature detecting element to apply a current to the temperature detecting element. Here, each of the pair of lines for temperature detection is arranged adjacent to the other.12-01-2011
20110292111INKJET PRINTING APPARATUS AND METHOD FOR PRINTING A PLURALITY OF PIXELS - In a method for printing a plurality of pixels, each pixel of a plurality of pixels is printed by controlling an inkjet print head to provide for each pixel at least two ink drops at different positions in a print head movement direction, the print head having a plurality of trenches supplying ink to a plurality of sets of nozzles. The at least two ink drops forming first pixels of said plurality of pixels are fired from the same trench.12-01-2011
20120229548DROPLET DISCHARGE DEVICE AND DROPLET DISCHARGE METHOD - A droplet discharge device includes: a discharge unit discharging a droplet and being moved relatively to a discharged object, on which the droplet is discharged, so as to form a predetermined pattern on the discharged object; a discharge amount measurement unit measuring a discharge amount of the droplet discharged from the discharge unit; a temperature acquisition unit acquiring a temperature of the droplet in the formation of the predetermined pattern; a temperature adjustment unit adjusting the temperature of the discharge unit; and a discharge amount adjustment unit adjusting the discharge amount of the discharge unit. In the device, the temperature adjustment unit adjusts a temperature of the droplet in the measurement of the discharge amount by the discharge amount measurement unit to the temperature in the formation of the predetermined pattern.09-13-2012
20080291232IMAGE FORMING APPARATUS AND MANUFACTURING SYSTEM FOR PRODUCTION OF EJECTION HEAD - An image forming apparatus having a liquid ejection head including a plurality of nozzles for ejecting droplets and a plurality of piezoelectric elements for generating a pressure for discharging droplets in respective nozzles. The image forming apparatus includes a polarization adjustment unit that performs a polarization adjustment in parallel for adjustment of target nozzles.11-27-2008
20100039470LIQUID EJECTION DEVICE AND LIQUID EJECTION METHOD - A liquid ejection device includes:02-18-2010
20090273628Clock Signal Extracting During Printing - A mobile device for printing onto a print medium, the print medium including a linear-encoded data track extending in an intended direction of printing, the mobile device including: a sensor configured to sense the data track during printing; a printhead for printing onto the print medium in response to a fire control signal; and fire control means connected to generate the fire control signal based on the sensed data track.11-05-2009
20090189939LIQUID EJECTING APPARATUS AND PRINTING SYSTEM - The present invention relates to a liquid ejecting apparatus including: a movable head provided with a plurality of nozzles for ejecting a liquid; a carry unit for carrying a medium in a predetermined carrying direction; and a sensor for detecting an edge of the medium, the liquid ejecting apparatus controlling ejection of the liquid from the plurality of nozzles in accordance with a result of the detection of the sensor. In this liquid ejecting apparatus, the position, in the carrying direction, of the sensor is at the same position of or on an upstream side of a nozzle located most upstream in the carrying direction, of among the plurality of nozzles. In this way, it is possible to arrange the sensor for detecting the edge of the paper at the most suitable position, and to suppress waste of ink that is ejected from the nozzles.07-30-2009
20110216117WATER-SOLUBLE AZO COMPOUND OR SALT THEREOF, INK COMPOSITION, AND COLORED MATTER - Disclosed is a water-soluble azo compound represented by formula (1) or a salt thereof, which functions as a yellow dye having a high print density suitable for inkjet recording. Matter recorded by using the water-soluble azo compound or a salt thereof has high fastness in various fields, and an ink composition prepared by using the water-soluble azo compound or a salt thereof has excellent storage stability. An ink composition containing the water-soluble azo compound or a salt thereof is also disclosed. In formula (1), R represents a hydrogen atom or the like; n represents an integer of 1-3; m represents 1 or 2; x represents an integer of 2-4; and group A represents a carboxy-substituted C09-08-2011
20100182365Inkjet printing apparatus - An inkjet printing apparatus is provided. The inkjet printing apparatus includes a recording head, which ejects ink onto s recording medium, an ink cartridge, which contains the ink therein, an ink cartridge storage to store the ink cartridge, an ink conveyer tube, which connects the recording head and the ink cartridge to convey the ink, a releasing system, arranged in the ink conveyer tube to switch an open state and a closed state, a release controller, which controls switching of the releasing system, and a judging system, which judges as to whether the ink in the ink conveyer tube is capable of being withdrawn in the ink cartridge. The release controller switches the releasing system in the open state to be in the closed state when the judging system judges that the ink is incapable of being withdrawn in the ink cartridge.07-22-2010
20090153608PRINTER CONTROLLER FOR MODULATING PRINTHEAD PEAK POWER REQUIREMENT USING OUT-OF-PHASE FIRING - A printer controller for supplying dot data to an inkjet printhead is provided. The printhead comprises a plurality of transversely aligned color channels. Each color channel comprises at least one nozzle row extending longitudinally along the printhead with each nozzle in a color channel ejecting the same colored ink. The printhead is comprised of a plurality of printhead modules with each printhead module comprising a respective segment of each nozzle row. The printer controller is programmed to supply dot data such that each of the printhead modules fires a respective segment within a predetermined segment-time, wherein at least one of the fired segments is contained in a different color channel from at least one other of the fired segments.06-18-2009
20100214339IMAGE FORMING DEVICE THAT PERFORMS BI-DIRECTIONAL PRINTING WHILE CALIBRATING CONVEYING AMOUNT OF RECORDING MEDIUM - An image forming device performs a bi-directional printing operation and includes a unit that determines a first amount by calibrating a predetermined amount based on a first value relating to a positional offset of a print element, and a unit that determines a second amount by calibrating the predetermined amount based on a second value relating to a positional offset of another print element. A recording medium is conveyed in a conveying direction the first amount after one of forward and reverse prints and the second amount after the other of the forward and reverse prints.08-26-2010
20100271413IMAGE FORMING APPARATUS - An image forming apparatus includes: an ink-jet head configured to eject ink to form an image on a sheet; and a controller configured to control an amount of the ink ejected from the ink-jet head and reduce an ejection amount of the ink ejected to a damaged sheet to be smaller than an ejection amount of the ink ejected to an undamaged sheet.10-28-2010
20120139982IMAGE FORMING APPARATUS AND DEFECTIVE NOZZLE DETECTING METHOD - An image forming apparatus that forms an image on a recording sheet by discharging ink droplets from nozzles provided in a print head on the recording sheet includes: a light emitting unit that generates detection light intersecting a discharge path of the ink droplets; a discharge signal output unit that outputs a discharge signal used to discharge the ink droplets from a detection target nozzle; a first light receiving unit that receives scattered light generated by irradiating the ink droplets with the detection light and outputs a first detection signal; a second light receiving unit that receives the detection light having passed through the discharge path of the ink droplets without irradiating the ink droplets and outputs a second detection signal; a determination unit that determines whether the detection target nozzle is a defective nozzle; and a correction unit that corrects a determination result of the determination unit.06-07-2012
20120139983Liquid Ejecting Apparatus, Computer System, And Liquid Ejection Method - A liquid ejecting apparatus and method creates no blank space on a medium. Such apparatus has: a movable ejection head for ejecting a liquid; a feed mechanism for feeding a medium; and detecting means for detecting a position of an edge of the medium; wherein the apparatus repeats an operation of detecting the position of the edge, an operation of feeding the medium, and an operation of ejecting the liquid onto the medium from the moving ejection head; in accordance with the position of the edge that has been detected, the apparatus changes at least either a start position or an end position for ejecting the liquid from the moving ejection head; and if the position of the edge was not detected, the apparatus sets the start position or the end position to a position that has been established in advance.06-07-2012
20090040256PRINTING APPARATUS AND CALIBRATION METHOD - A printing apparatus and a calibration method are provided which, by using a small-capacity memory, can perform a high-speed calibration processing on data used to eject ink of the same color from a plurality of nozzle arrays. By ejecting ink of the same color from the plurality of nozzle arrays, patch is printed and, based on the printed result of the patch, a content of a print data correction processing is changed.02-12-2009
20110267393LIQUID EJECTING APPARATUS - A printer includes a heating roller unit that heats recording paper at a position downstream of a recording head, which is provided at an upstream position, in the direction of the transportation of the recording paper. The recording head ejects ink to the recording paper that is transported from an upstream side to a downstream side. The heating roller unit is disposed along the direction of the width of the recording paper, which intersects with the transportation direction thereof. The heating roller unit is divided into a plurality of areas in the width direction. Heat applied by first areas of the plurality of areas to the recording paper is different from heat applied by second areas, which are adjacent to the first areas in the width direction, to the recording paper.11-03-2011
20090153607LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes diffusion layers provided in areas opposing pressure generation chambers by doping impurities into a portion of a channel forming substrate, a detecting portion which detects variations in resistance values of the diffusion layers due to the deformation of vibration plates, and an adjustment portion which adjusts driving voltages applied to pressure generation elements on the basis of the detected result of the detecting portion. Accordingly, it is possible to acquire the displacement amounts of the vibration plates due to the driving of the pressure generation elements, by detecting the variations in resistance values of the diffusion layers due to the deformation of the vibration plates.06-18-2009
20090147037INKJET RECORDING APPARATUS - An inkjet recording apparatus includes a recording head that jets photo-curable ink onto a recording medium; an irradiation device that irradiates light onto ink having landed on a surface of the recording medium K; an illumination measuring device that measures an illumination by light that is irradiated from the irradiation device; and a controller that controls the recording head. Herein, the controller controls the recording head to be in a state that allows the recording head to perform image recording when an illumination measured by the illumination measuring device is higher than or equal to a lower limit of illumination for curing ink.06-11-2009
20100013883Ink circulation type inkjet printer - An ink circulation type inkjet printer includes a maintenance controller configured to: (1) allow a maintenance mechanism to execute maintenance processing for a plurality of inkjet heads before a present printing job under three conditions that: (c1) an elapsed time from a last printing job to a present printing job is less than a first reference time; (c2) the present printing job requests for ejecting ink from unused nozzles of multiple nozzles of the plurality of inkjet heads in the last printing job; (c3) the elapsed time is more than a second reference time; (2) allow the ink circulation type inkjet printer to perform the present printing job without the maintenance processing for the plurality of inkjet heads when the elapsed time is less than the predetermined second reference time.01-21-2010
20090315934INK JET PRINTING APPARATUS - An ink jet printing apparatus that can inhibit the possible degradation of image quality caused by variation in the conveyance amount of a print medium is provided. The ink jet printing apparatus includes a detection section detecting the conveyance amount of the print medium, and a print head position adjusting section slightly moving a print head in a conveyance direction of the print medium. The print head position adjusting section adjusts the position of the print head in the conveyance direction according to an error in the conveyance amount of the print medium detected by the detection section. Thus, printing can be performed at the head position adjusted with the error in conveyance amount taken into account. Therefore, the possible degradation of the image quality caused by a conveyance variation can be inhibited.12-24-2009
20100238220System And Method For Measuring Drop Position In An Image Of A Test Pattern On An Image Substrate - A system evaluates image quality in an image generating system in the presence of digital image noise and/or missing jets. The system includes a test pattern generator configured to generate a test pattern on an image substrate, an image capture device configured to generate a digital image of the generated test pattern on the image substrate, an image evaluator configured to process the digital image and generate a solution for an over-determined matrix of equations formed from differential distance measurements obtained with reference to a jet in the digital image by minimizing the root-mean-square (RMS) of residual errors corresponding to the matrix, and a controller configured to generate a correction parameter from the generated solution and to apply the correction parameter to the jet used for the used for the differential distance measurements.09-23-2010
20100118080APPARATUS AND METHOD FOR INK JET PRINTING - The present invention provides an ink jet printing apparatus and a method for controlling temperature for the ink jet printing apparatus wherein the temperature of a print head, which may lower during printing, is controlled before printing without using any sub-heater to allow a favorable ejection condition to be established without reducing the head temperature below a predetermined value. Thus, scan width information and dot count information are acquired before a carriage starts scanning to determine the heating temperature of the print head on the basis of the information.05-13-2010
20100118079INK JET RECORDING METHOD AND INK JET RECORDING DEVICE - An inkjet printing apparatus, which ejects ink from a printing head to print, is provided for reducing an ejection amount increase caused by a temperature increase of the printing head due to ink ejection in the case of high speed printing, thereby suppressing density unevenness which occurs in a printing area in the main scanning direction due to the ejection amount increase. A scanning region of the printing head is divided into a plurality of count areas provided for counting the number of times of ink ejection based on image data and the count is carried out for each of the plurality of the counting areas. The scanning region of the printing head is divided into a plurality of printing areas provided for correcting the image data in response to the count value to print the image data and the correction of the image data is carried out for each of the plurality of the printing areas. In this way, the count of image data and their correction are carried out in one main scanning region.05-13-2010
20100079524INKJET RECORDING APPARATUS, COLOR CORRECTION METHOD AND COMPUTER-READABLE MEDIUM - An inkjet recording apparatus includes: a treatment liquid deposition device which deposits a treatment liquid insolubilizing or aggregating inks of a plurality of colors, onto a recording medium; a recording head which has a plurality of nozzles ejecting the inks onto the recording medium on which the treatment liquid has been deposited; a data acquisition device which acquires density data of an image with respect to each color, the density data corresponding to the plurality of colors; a higher-order color correction device which corrects the density data, wherein when the inks of different colors are ejected in ejection order so that a preceding ink ejected precedingly to form a lower layer and a subsequent ink ejected subsequently to form an upper layer overlap each other, the higher-order color correction device corrects the density data for a nozzle ejecting the subsequent ink according to the density data for a nozzle ejecting the preceding ink; and an ejection controller which controls ejection of the inks from the recording head according to the density data that the higher-order color correction device has corrected in such a manner that the image is formed on the recording medium.04-01-2010
20100079522FLUID EJECTION DEVICE, DRIVING METHOD OF FLUID EJECTION DEVICE, AND OPERATING INSTRUMENT - A fluid ejection device includes: a fluid chamber whose capacity is variable; an inlet flow path and an outlet flow path communicating with the fluid chamber; a capacity changing unit which changes the capacity of the fluid chamber; a fluid supplying unit which supplies fluid to the inlet flow path; a fluid ejection opening disposed at an end of the outlet flow path opposite to an end communicating with the fluid chamber; a first electrode of a predetermined polarity having a first contact portion disposed at the fluid ejection opening or a component in the vicinity of the fluid ejection opening; a second electrode having a polarity different from the predetermined polarity and having a second conductive contact portion; a conduction judging unit which judges whether the first electrode and the second electrode are conducted; and an operation control unit which controls operation of the capacity changing unit based on judgment result of the conduction judging unit.04-01-2010
20110221814LIQUID EJECTING APPARATUS AND LIQUID EJECTING METHOD - Two types of decimating mask patterns having different ink gradation ratio distributions are prepared, and in the outbound and inbound passes of a head unit during bidirectional printing, the numbers of times ink is ejected from nozzle rows in recording heads provided for each ink are controlled using mask patterns that differ in accordance with the darkness of the ink.09-15-2011
20110199411LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes: a transport unit that transports a recording medium; a liquid ejecting head that ejects a liquid onto the recording medium; a carriage that holds the liquid ejecting head; a charge amount detection unit that detects a charge amount on the recording medium; and a driving control unit. In the case where the charge amount detected by the charge amount detection unit has exceeded a predetermined value, the driving control unit performs at least one of the following: controls the transport unit so that the transport speed of the recording medium becomes relatively slower.08-18-2011
20110148966CONTROLLING DEVICE - A controlling device may perform an image process on specific image data so as to generate processed image data, supply the processed image data to the print performing unit and perform, in order to compensate variability of discharging amount of ink droplets discharged from the plurality of nozzles, a specific process on a target pixel within target image data using correction data for a target nozzle which forms a dot at a position on a print medium corresponding to the target pixel. The correction data may be data acquired using two or more sets of characteristic data corresponding to two or more nozzles of the plurality of nozzles. The two or more nozzles may include the target nozzle and a specific nozzle. The specific nozzle may be to form a raster near a target raster formed on the print medium by the target nozzle.06-23-2011
20110187782PRINTER APPARATUS - A printer apparatus includes a medium supporter to support a printing medium. A carriage holds a printer head provided with a nozzle from which ink is to be ejected onto a printing surface of the printing medium. A carriage moving mechanism moves the carriage along the printing surface of the printing medium supported by the medium supporter. An acceleration detector is configured to detect acceleration of vibration generated in the carriage. A determining device is configured to determine whether a magnitude of the acceleration detected by the acceleration detector exceeds a predetermined threshold value. A controller is configured to control the carriage moving mechanism to restrict relative movement of the carriage when the determining device determines that the magnitude of the acceleration detected by the acceleration detector exceeds the predetermined threshold value.08-04-2011
20090207202RECORDING APPARATUS - A recording apparatus includes a recording head having a common liquid channel; plural pressure chambers; plural nozzles; plural individual liquid channels, each individual liquid channel extending from the common liquid channel via associated pressure chamber to associated nozzle; and plural actuators configured to impart a pressure to a liquid inside a respective one of the pressure chambers; and a control unit configured to drive the actuators; wherein the control unit comprises: an excessive state detection section configured to detect an excessive state in which a pressure difference between a liquid-side pressure and an air-side pressure at a meniscus formed at any one of the nozzles exceeds a threshold value when droplets are ejected from the nozzles, and a meniscus vibration section configured to drive the actuator associated with the nozzle that does not eject droplets such that the meniscus is subjected to vibration without ejecting the droplets.08-20-2009
20090278880INK JET DEVICE FOR PRODUCING A BIOLOGICAL ASSAY SUBSTRATE BY RELEASING A PLURALITY OF SUBSTANCES ONTO THE SUBSTRATE, AND METHOD FOR MONITORING THE INK JET DEVICE - The invention provides an ink jet device for producing a biological assay substrate by releasing a plurality of substances onto the substrate, the device comprising at least a print head comprising a nozzle, the device comprising at least a transducer provided to eject a droplet out of the nozzle, wherein a detection means is assigned to the ink jet device such that the state of the print head can be monitored by means of the detection of the behaviour of to the transducer.11-12-2009
20100079523Control of Velocity Through a Nozzle - A method is described wherein one or more parameters are measured that affect the nozzle velocity at which a printing fluid is ejected from a pumping chamber through a nozzle. The printing fluid is contained in the pumping chamber actuated by deflection of a piezoelectric layer. A surface area of an electrode actuating the piezoelectric layer is reduced based at least in part on the measured one or more parameters. Reducing the surface area of the electrode reduces the actuated area of the piezoelectric layer.04-01-2010
20100123747METHOD FOR DETECTING PURGING INK FLOW THROUGH PRINTHEAD HEATER CHIP NOZZLES BY THERMAL ANALYSIS - A method for detecting ink flow through a printhead, due to a successful purging of the nozzles of a heater chip of the printhead, includes moving the printhead to a location in preparation for a purging operation such that a purge pump is connected in flow communication with heater chip nozzles, setting the manner in which the purge pump operates to suction ink through nozzles of the heater chip from a source of ink, performing a thermal analysis on the heater chip concurrently as the purge pump operates to determine whether ink is flowing through the heater chip nozzles and whether the purge pump should continue to operate, and adjusting the manner in which the purge pump continues to operate in response to the thermal analysis.05-20-2010
20100123748LIQUID DROPLET EJECTING APPARATUS, LIQUID DROPLET EJECTING METHOD AND COMPUTER READABLE MEDIUM STORING A PROGRAM - A liquid droplet ejecting apparatus includes a liquid ejecting module and a measurement section. The liquid ejecting module includes a pressure chamber that has a piezoelectric element and an ejecting nozzle, and a supply passage that supplies liquid into the pressure chamber, and the liquid ejecting module configured to eject, from the ejecting nozzles, liquid which is supplied to the pressure chamber through the supply passage. The measurement section measures an admittance or a phase difference between a voltage applied to the piezoelectric element and a current through the liquid ejecting module when the voltage is applied.05-20-2010
20090201329INK JET PRINTING APPARATUS - An ink jet printing apparatus includes a print head for printing an image on a printing medium. The print head includes a first nozzle array for ejecting a first ink and a second nozzle array for ejecting a second ink. The ink jet printing apparatus also includes a wiping member for wiping a printing face of the print head provided with the first and second nozzle arrays, and a control unit for controlling the wiping member to wipe the printing face depending on an ejection number of the first ink ejected from the first nozzle array and an ejection number of the second ink ejected from the second nozzle array, wherein the control unit controls the wiping member to wipe the printing face if the ejection number of the first ink exceeds a first threshold value or the ejection number of the second ink exceeds a second threshold value.08-13-2009
20090278881LIQUID DROPLET EJECTION APPARATUS - A liquid droplet ejection apparatus comprising: a conveyor portion that conveys a recording medium to a liquid droplet ejection region by the rotational force of a drive roll; liquid droplet ejection heads that eject liquid droplets onto the recording medium conveyed to the liquid droplet ejection region by the conveyor portion; a feed portion that feeds the recording medium to the conveyor portion at a predetermined feed timing; a detection portion that detects a rotational position of the drive roll; and a control portion that controls the feed timing of the feed portion based on the rotational position that the detection portion has detected, so that when the drive roll reaches a predetermined rotational position, the control portion causes the recording medium to be conveyed to the liquid droplet ejection region and causes the liquid droplet ejection heads to start ejecting the liquid droplets onto the recording medium, is provided.11-12-2009
20110199413PRINTING APPARATUS AND CALIBRATION METHOD - A printing apparatus and a calibration method are provided which, by using a small-capacity memory, can perform a high-speed calibration processing on data used to eject ink of the same color from a plurality of nozzle arrays. By ejecting ink of the same color from the plurality of nozzle arrays, patch is printed and, based on the printed result of the patch, a content of a print data correction processing is changed.08-18-2011
20090284559Liquid ejecting apparatus and method of ejecting liquid - A liquid ejecting apparatus includes a liquid supplying unit that supplies the liquid, a head unit that has a nozzle row, in which a plurality of nozzles for ejecting the liquid is aligned, a control unit that forms a raster area, in which a plurality of ejection dots in units of the nozzle rows is aligned in a main scanning direction, an ejection amount calculating unit that calculates ejection amounts of the liquid needed for forming the ejection dots, and a division scanning unit that divides the raster area so as to be formed by performing a plurality of head scanning operations in accordance with a transitional change in the ejection amounts that is formed by aligning the ejection amounts calculated by the ejection amount calculating unit in the order in which the ejection dots in units of nozzle rows are formed.11-19-2009
20090262157Forming Method of Adjustment Pattern and Liquid Ejection Apparatus - A forming method of an adjustment pattern is characterized by forming a first adjustment pattern on a medium by ejecting liquid onto the medium from a part of a plurality of nozzles that are arranged along a direction in which the medium is transported and that eject the liquid onto the medium while moving relative to the medium, and subsequently, after transporting the medium, forming a second adjustment pattern on the medium by ejecting the liquid onto the medium from nozzles other than the part of the plurality of nozzles, the second adjustment pattern being lined up in a movement direction of the nozzles with respect to the first adjustment pattern.10-22-2009
20090295855Printer Having Nozzle Displacement Correction - A printer is provided having a carrier, a printhead having a plurality of nozzles, at least one of the nozzles being rotationally displaced relative to the carrier, and a controller for determining and communicating print data to the nozzles. The controller is configured to determine the rotational displacement, determine a correction factor for compensating for a printing error caused by the determined rotational displacement, and alter the print data based on the correction factor to at least partially compensate for the rotational displacement. The correction factor is at least partially based on a thickness of media being printed on.12-03-2009
20090244151Orifice health detection device and method - A method of detecting orifice health includes moving a cap support into a drop detect position wherein a light source mounted on the cap support is positioned adjacent an array of fluid ejecting orifices, from the light source, projecting a light beam adjacent to the array of fluid ejecting orifices, ejecting at least one fluid drop from the array and through the light beam, and detecting scattered light from the at least one ejected fluid drop.10-01-2009
20100201732PRINTING APPARATUS AND CONTROL METHOD OF THE PRINTING APPARATUS - In an ink jet printing apparatus using a plurality of printing heads arranged in a convey direction of a printing medium, an inclination angle of the printing medium to a predetermined convey direction is detected to adjust, in accordance with the resultant inclination angle, timings at which ink is jetted from the plurality of printing heads. This allows, even when the printing medium being subjected to a printing operation has a slight meander shape, an image to be formed on a printing medium so that printing positions of the plurality of printing heads have no dislocation.08-12-2010
20100277534MECHANICAL DITHERING OF PRINTING MECHANISMS - A system comprises a control module that communicates with a printhead having nozzles, that detects a malfunctioning nozzle, and that generates control signals when the malfunctioning nozzle is detected. A vibration generator selectively vibrates the printhead along a first axis of a print medium based on the control signals. The first axis is selected from a group consisting of parallel and perpendicular to a second axis of motion of the print medium.11-04-2010
20100277535PRINTING APPARATUS, PROGRAM, AND PRINTING METHOD - A print start position is set to an appropriate position, and the time required for printing is shortened. A printing apparatus, which forms a row of dots from a print start position in a scanning direction to print on a medium to be printed, is provided with a sensor that is capable of detecting an edge, in the scanning direction, of the medium to be printed. The printing apparatus stores the result of detecting the edge of another medium to be printed, and, when printing on the medium to be printed, it reads out the stored detection result and determines the print start position based on that detection result.11-04-2010
20100277533METHOD FOR PRINTING WITH AN ACCELERATING PRINTHEAD - A method for printing input digital images using an inkjet printing system having a first and second drop ejector arrays for ejecting drops of a particular ink, wherein ink paths supplying drop ejector arrays have different length projections. The method comprising printing a first combined number of ink dots using the first and second drop ejector arrays during first and third time intervals where the printhead is accelerating and decelerating; and printing a second combined number of ink dots using the first and second drop ejector arrays during a second time interval where the printhead is moving at a substantially constant velocity, wherein the percentage of ink dots that are printed by the drop ejector array having a longer length projection is less than 40% of the corresponding combined number of ink dots in at least one of the first or third time intervals.11-04-2010
20120293578INK SET FOR INK JET RECORDING, RECORDING APPARATUS, AND RECORDED MATTER - An ink set for ink jet recording is provided, the ink set including a first ink containing first resin particles and not substantially containing a colorant; and a second ink containing titanium oxide particles and containing the first resin particles in an amount less than 6 weight %, the second ink being ejected substantially at the same time as ejection of the first ink.11-22-2012
20090167802INKJET PRINTING APPARATUS AND PRELIMINARY DISCHARGE CONTROL METHOD OF SAID APPARATUS - In an inkjet printing apparatus which performs printing on a printing medium using an inkjet printhead for discharging ink, preliminary discharge, where ink discharge irrespective of printing is performed at the time of print execution, is performed under a predetermined condition to obtain information regarding a discharge state of the printhead. Based on the obtained information, an execution condition of the preliminary discharge is controlled. By virtue of this control, an execution condition (parameter) of the preliminary discharge can appropriately be controlled in accordance with the discharge state of the printhead, in which the ink drying state and the increased viscosity state of ink vary depending on individual differences, usage environment, usage histories (durability) and so on.07-02-2009
20110199412IMAGE FORMING APPARATUS - A detection unit that detects the width of a medium on a placement surface is mounted on a carriage, a reflection plate is formed on one end of the placement surface while the reflection plate is inclined at the placement surface, and the carriage is moved to a position in which the carriage faces the reflection plate, so that the thickness of the medium is determined based on the output of the detection unit while moving the carriage. Therefore, the thickness of the medium is detected with high accuracy without using a dedicated sensor.08-18-2011
20110199410IMAGE FORMING APPARATUS - An image forming apparatus including a first carriage having a first recording head to eject black liquid droplets, a second carriage having a second recording head to eject color liquid droplets and separatably dockable with the first carriage, a position detector to detect a position of the second carriage relative to the first carriage in a state in which the first and second carriages are docked with each other, and a landing position corrector to correct landing positions of liquid droplets ejected from at least one of the first and second recording heads. The landing position corrector holds the position of the second carriage obtained by the position detector as a reference position and adjusts a correction amount for correcting the landing positions based on an amount of shift between the reference position and a present position of the second carriage docked with the first carriage.08-18-2011
20100103215JETTING TIMING DETERMINING METHOD, LIQUID-DROPLET JETTING METHOD AND INK-JET PRINTER - In a liquid-droplet jetting apparatus such as an ink-jet head having a plurality of nozzle rows formed therein, an ink is jetted from one of the nozzle rows and the ink is jetted from another nozzle row concurrently while changing delay times by each of which a jetting timing for the nozzle row is delayed with respect to a jetting timing for the another nozzle row. Then, an optimum image is determined among images formed by the ink jetted from these two nozzle rows, and a delay time in the jetting timings is extracted, among the delay times, which correspond to the optimum image. By determining the delay time in the nozzle rows in such a manner, the variation in jetting characteristics is small in the nozzle rows, thereby realizing satisfactory reproducibility of image.04-29-2010
20100103214INKJET HEAD ALIGNING METHOD - Disclosed is a method of aligning an inkjet head. The method of aligning an inkjet head having a plurality of nozzles can include recognizing a position (x04-29-2010
20100060691PRINTING METHOD AND PRINTER - [Task] To achieve reduction of the number of correction value tables.03-11-2010
20100060690LIQUID EJECTING APPARATUS AND EJECTION INSPECTING METHOD - A liquid ejecting apparatus includes: a head which ejects a liquid from nozzles; a first electrode which charges the liquid with a first potential; a second electrode which is charged with a second potential different from the first potential; and an inspector which inspects whether the liquid is ejected from the nozzles based on a variation in a potential caused in at least one of the first and second electrodes by ejecting the liquid charged with the first potential from the nozzles to the second electrode and which determines whether the inspection of liquid ejection from the nozzles is normally executed based on the variation in the potential during a non-ejection period in which the liquid is not ejected from all of the nozzles.03-11-2010
20080238972LIQUID EJECTING APPARATUS - A liquid ejecting apparatus which includes a plurality of transport belts, upstream and downstream liquid ejecting units that include a plurality of liquid ejecting heads which are arranged at predetermined intervals in a direction orthogonal to the direction that the printing medium is transported through the apparatus, a maintenance unit that is provided between the transport belts, and a positioning unit that establishes the relative position between the upstream liquid ejecting unit, the upstream transport unit, the downstream liquid ejecting unit, and the downstream transport unit by moving components of the upstream liquid ejecting unit, the upstream transport unit, the downstream liquid ejecting unit, and the downstream transport unit in a direction that is orthogonal to the transport direction such that the liquid ejecting heads of the upstream and downstream liquid ejecting units face the maintenance unit during a maintenance operation.10-02-2008
20090002421INKJET PRINTHEAD COMPRISING BONDED HEATER ELEMENT AND DIELECTRIC LAYER WITH LOW THERMAL PRODUCT - A thermal inkjet printhead with generally planar heater elements disposed in respective bubble forming chambers such that they are bonded on one side to the chamber so that the other side faces into the chamber. Each heater element receives an energizing pulse to heat ejectable liquid above its boiling point to form a gas bubble on the side facing into the chamber, whereby the gas bubble causes the ejection of a drop of the ejectable liquid from the nozzle. The chamber has a dielectric layer proximate the side of the heater element bonded to the chamber. The dielectric layer has a thermal product less than 1495 Jm01-01-2009
20110205275Recording device and control method therefor - A recording device having a recording head including a nozzle line that eject ink from nozzles arranged in a transfer direction of a recording medium, a carriage, a moving device that moves the carriage forward and backward, a transfer device that transfers the recording medium, an ejection control device that forms a detection pattern by ejecting the ink, a two-dimensional sensor that detects the detection pattern, an analyzer that analyzes the image data of the detection pattern, and a detection device that detects misalignment of the printed dots, the ejection control device having a first dot group formation device that forms a first dot group, a second dot group formation device that forms a second dot group, and a third dot group formation device that forms a third dot group, the detection pattern being formed of the first dot group, the second dot group, and the third dot group.08-25-2011
20080238974Droplet ejection device - A droplet ejection device includes: an ejection head having an actuator and a nozzle; an interface configured to receive data; and a controller configured to (a) execute, based on the received data, ejection control in which liquid droplets having respective different volumes are selectively ejected from the nozzle to a medium by driving the actuator and (b) execute recovery control in which ejection performance of the recording head is recovered by driving the actuator. The controller is configured to (c) determine, based on the received data, a volume of a droplet to be first ejected from the nozzle under the ejection control subsequent to the recovery control, and (d) set, based on the determined volume, a condition for driving the actuator to execute the recovery control.10-02-2008
20080238973LIQUID DROPLET DEPOSITION METHOD AND LIQUID DROPLET DEPOSITION APPARATUS - A liquid droplet deposition method of consecutively depositing a plurality of droplets of liquid, which contains solvent and particles dispersed in the solvent and having a substantially uniform size, onto a recording medium includes the steps of: determining target positions at which the plurality of droplets are to be deposited on the recording medium; depositing an X-th droplet of the droplets at an X-th target position of the determined target positions on the recording medium, X being a natural number; and depositing an (X+1)-th droplet of the droplets at an (X+1)-th target position of the determined target positions on the recording medium subsequently to the X-th droplet, after the particles contained in the X-th droplet are aggregated to form an X-th particle aggregate on the recording medium due to liquid bridging force, wherein in the determining step, the target positions are determined so as to satisfy following conditions:10-02-2008
20100128077DROPLET EJECTOR - A droplet ejector includes: at least one head unit each having a droplet ejection surface; a conveyor mechanism which conveys, an ejection target in a conveyance direction in parallel to the ejection surface, the ejection target being an object on which a droplet from the at least one head unit impacts; at least one pushing component which is arranged to be movable with respect to the at least one head unit in a direction orthogonal to the ejection surface, the at least one pushing component pushing the ejection target in a direction of droplet ejection from the nozzles while protruding from the ejection surface; a pushing drive mechanism which moves the at least one pushing component in the direction orthogonal to the ejection surface; and a control unit.05-27-2010
20080278530PRINTING APPARATUS AND METHOD FOR ESTIMATING AMOUNT OF INK - The present invention provides a printing apparatus which is capable of estimate an amount of remaining ink with high accuracy by using ejection of ink from a printing head while restraining a consumption of ink during the estimation of the remaining ink amount, and also provides a method for estimating an amount of ink. An amount of ink ejected per unit time during the ink ejection for estimation of the remaining ink amount is set to be larger than an amount of ink ejected per unit time during printing.11-13-2008
20090033702ALTERING FIRING ORDER - Embodiments of altering nozzle firing order are disclosed.02-05-2009
20080291231IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF - An image forming apparatus, includes an image forming unit, a driver having a driving unit as a driving source of the image forming unit, a detector which detects driving information of the driving unit, and a controller which controls the driver to operate with a delay time corresponding to a difference between the detected driving information and a reference value.11-27-2008
20120293580DETERMINING POSITIONING OF A HANDHELD IMAGE TRANSLATION DEVICE USING MULTIPLE SENSORS - Systems, apparatuses, and methods for a handheld image translation device are described herein. The handheld image translation device may include a position module to determine positioning information including both translation and rotation information based at least in part on captured navigational measurements. A print module of the handheld image translation device may cause print forming substances to be deposited based at least in part on the positioning information. Other embodiments may be described and claimed.11-22-2012
20080309699LOW ENERGY CONSUMPTION NOZZLE ASSEMBLY FOR AN INKJET PRINTER - A nozzle assembly for an inkjet printhead is disclosed. The nozzle assembly includes an inkjet nozzle having an actuator for ejecting an ink droplet from the inkjet nozzle when a resistive element of the actuator is heated by an electrical current. A drive transistor provides an energy pulse to the resistive element of the actuator, and control logic controls the drive transistor. The energy of the energy pulse is less than 1 μJ.12-18-2008
20080309698Discharge Rate Control Method for Ink-Jet Printer, Ink Spread Inspecting Method, and Oriented Film Forming Method - Discharge rate control method for ink-jet printer 12-18-2008
20080218549Liquid ejection apparatus - A liquid ejection apparatus includes: a liquid ejection head having a nozzle, wherein the liquid ejection head can eject a liquid from the nozzle and is movable in a predetermined direction; a first controller that controls, based on input data, liquid ejection of the liquid ejection head from the nozzle and movement of the liquid ejection head in the predetermined direction to apply the liquid onto an ejection area of a medium; a second controller that controls a flushing operation by moving the liquid ejection head to a flushing area outside the ejection area in the predetermined direction and ejecting the liquid from the nozzle of the liquid ejection head to the flushing area; a third controller that controls a minute vibration operation by vibrating the liquid in the nozzle to such an extent as not to eject the liquid from the nozzle; and a fourth controller that obtains information regarding the ejection area in the predetermined direction and that selectively controls the second controller and the third controller based on the obtained information to execute one of the flushing operation and the minute vibration operation.09-11-2008
20080266342PRINT HEAD WIPING - Various embodiments and methods relating to wiping of a print head are disclosed.10-30-2008
20080204495LIQUID EJECTING APPARATUS - The invention provides a liquid ejecting apparatus that includes: a main scan section that scans the liquid ejecting head in a main scan direction; a sub scan section that scans the ejection target medium in a sub scan direction, the sub scan section including a pair of transport rollers and a pair of ejection rollers; and a controlling section that acquires, an expected timing of a switchover between a state in which the ejection target medium is nipped by both of the pair of transport rollers and the pair of ejection rollers and a state in which the ejection target medium is nipped by only one of the pair of transport rollers and the pair of ejection rollers, and that changes an ejecting condition, during a plurality of main scan operations in a transition interval that is set around the expected timing.08-28-2008
20080211848HANDHELD IMAGE TRANSLATION DEVICE - Systems, apparatuses, and methods for a handheld image translation device are described herein. The handheld image translation device may include an image capture module to capture surface images of a medium and a positioning module to determine positioning information based at least in part on navigational measurements and/or the captured surface images. A print module of the handheld image translation device may cause print forming substances to be deposited based at least in part on the positioning information. Other embodiments may be described and claimed.09-04-2008
20100265291LIQUID DISCHARGING APPARATUS - A printer including a printing section with a printing head is disclosed. The printer head includes a plurality of nozzles configured to discharge liquid on a medium at a pass resolution. The printing section being configured to determine the maximum pass number N required to repeatedly move the printing head to print on a section of the medium at a desired resolution. The desired resolution is greater than the pass resolution. The printing section is further configured to determine which passes of N will be designated to discharge the liquid from each nozzle of the plurality of nozzles, and whether or not an idle pass is required for each nozzle of the plurality of nozzles. When an idle pass is required for each nozzle of the plurality of nozzles, the printing section is configured to modify the maximum divided pass number N to divided pass number M, M being less than N.10-21-2010
20120293579RECORDING APPARATUS, METHOD FOR ADJUSTING DEVIATION OF PRINT POSITION FOR RECORDING APPARATUS, AND COMPUTER PROGRAM PRODUCT - A recording apparatus includes: a recording unit; an adjustment-chart output unit that outputs an adjustment chart for adjusting deviation of a print position between a first dot and a second dot that are formed for images on a recording medium at different timings with a print head; and an ejection-position adjusting unit that records a plurality of combinations, each containing a reference pattern for reference of an image position and adjustment patterns that are deviated from the reference pattern in a stepwise manner such that the deviation amounts are shifted by M-times of a deviation amount corresponding to the recording resolution, receives selection of an adjustment pattern closest to the reference pattern from the outside, obtains an adjustment value based on the adjustment pattern of the selected combination, sets the adjustment value as a new adjustment value, and adjusts an ejection position of the print head.11-22-2012
20080273051PRINTING APPARATUS, METHOD OF SETTING PRINT POSITION ADJUSTMENT VALUE, AND PRINTING METHOD - If print agents used are detected by an optical sensor at different sensitivities, the present invention enables the easy setting of adjustment values for print positions resulting from these print agents. To accomplish this object, for example, the present invention substitutes and sets adjustment values for print positions resulting from cyan, light cyan, or black ink, corresponding to a high detection sensitivity, for adjustment values for print positions resulting from a light magenta, yellow, or magenta ink, corresponding to a low detection sensitivity.11-06-2008
20110007108LIQUID DISCHARGE APPARATUS AND METHOD - A liquid discharge apparatus includes a nozzle, a pressure chamber and a liquid supply portion that supplies the liquid to the pressure chamber. A discharge pulse generating unit generates a discharge pulse to discharge the liquid. The viscosity of the liquid is no less than 8 millipascal-seconds. The nozzle has a first portion with a discharge side that has an opening area smaller than that of a pressure chamber side and a second portion that communicates with an end portion of the discharge side. An opening area of the second portion is no greater than 1/9 of the opening area of the pressure chamber side. The discharge pulse has a decompression portion that decompresses the liquid to lead a meniscus in the second portion to the first portion and a compression portion that compresses the liquid to discharge the liquid before the meniscus returns to the second portion.01-13-2011
20130120485LIQUID APPLICATION DEVICE, LIQUID APPLICATION METHOD, AND NANOIMPRINT SYSTEM - A liquid application device includes: a liquid ejection head including: nozzles configured to perform ejection of droplets of liquid toward a substrate; and liquid chambers connected respectively to the nozzles and defined by side walls, at least respective parts of the side walls being constituted of piezoelectric elements, the liquid ejection head being configured to cause shear deformation of the piezoelectric elements to eject the droplets of the liquid in the liquid chamber through the nozzles; and a droplet ejection control device configured to group the nozzles into groups of not less than three in such a manner that adjacent nozzles belong to different groups, and is configured to control operation of the piezoelectric elements in such a manner that the droplet ejection is performed at a same timing only through the nozzles belonging to a same group so as to deposit the liquid discretely onto the substrate.05-16-2013
20130120486PRINT HEAD CHECK METHOD AND IMAGE FORMING APPARATUS - A printer has a print head check unit that performs an ink ejection check to confirm whether or not ink is being ejected normally from nozzles, the printer sets a flag F to 1 so as to start an ink ejection check and starts a paper feed process. When the processes has been terminated, the printer starts printing. Accordingly, ink ejection check takes place concurrently with the paper feed process, the overall time required for the processes can be reduced. In this way, the overall time required for the processes of the ejection check of the print recording liquid and an image forming process can be reduced. Further, the ink ejection check may be performed in parallel with or partly overlapping with a process of receiving print data, a process of conversion into print data, a process of ejecting paper after printing, or a flashing process.05-16-2013
20090160896INK-JET TYPE IMAGE-FORMING APPARATUS - An ink-jet type image-forming apparatus is provided which is improved in ink ejection performance and ink ejection reliability by retarding increase of the ink viscosity. In this apparatus, the ink in nozzles is not heated immediately before the printing (no voltage pulse is applied to the heater 06-25-2009
20090160897IMAGE FORMING APPARATUS AND LIQUID REMOVAL CAPABILITY SETTING METHOD - An image forming apparatus including an ejection head which ejects liquid onto a recording medium to form a desired image thereon, a conveyance device which moves either the recording medium or the ejection head to move the recording medium in a conveyance direction relative to the ejection head, a first density determination device downstream of the ejection head in the conveyance direction which determines density of the image formed on the recording medium, a liquid removal device downstream of the first density determination device in the conveyance direction that removes liquid from the recording medium, a second density determination device downstream of the liquid removal device in the conveyance direction that determines the density of the image from which the liquid removal device liquid, and a liquid removal control device which controls the liquid removal device according to determination results of the first and second density determination devices.06-25-2009
20110205276RECORDING HEAD ADJUSTMENT METHOD AND IMAGE RECORDING APPARATUS - A recording head adjustment method includes: a dot row forming step of causing relative movement between a recording medium and a recording head in which a plurality of sub-heads each including a plurality of recording elements are joined together, and driving the plurality of recording elements at prescribed drive timing with respect to each of the plurality of sub-heads in such a manner that dot rows for the respective sub-heads are formed in a direction substantially perpendicular to a direction of the relative movement; a step-difference amount calculation step of measuring positions in the direction of the relative movement of the dot rows for the respective sub-heads in a situation where a range of a part of the dot rows formed by an overlapping portion between the mutually adjacent sub-heads where recording rates represented by number of dots per unit surface area are substantially same as each other is set as a measurement object, and obtaining an amount of step difference between the sub-heads represented by difference or ratio of the measured positions in the direction of the relative movement of the dot rows for the respective sub-heads; an adjustment value calculation step of calculating an adjustment value for the drive timing of the plurality of recording elements with respect to each of the plurality of sub-heads according to the obtained amount of step difference; and a drive timing adjustment step of adjusting relative drive timing with respect to each of the plurality of sub-heads according to the calculated adjustment value.08-25-2011
20090128594DEFECTIVE NOZZLE REPLACEMENT IN A PRINTER - Printing is performed at a full resolution using a first set of nozzles and a second set of nozzles arranged on a printhead. Printing is performed at less than the full resolution using the first set of nozzles less any nozzles in the first set of nozzles that have been determined to be defective. T he second set of nozzles is not used for printing at less than the full resolution except for a subset of nozzles in the second set of nozzles that are used to replace nozzles from the first set of nozzles that have been determined to be defective.05-21-2009
20090128595INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - An object of the present invention is to provide an ink jet printing apparatus and an ink jet printing method which can inhibit degradation of image quality resulting from ink drying unevenness regardless of the type of ink and the amount of ejected ink. To accomplish the object, the present invention determines, based on print data, drying characteristics of ink applied by a print head to a predetermined time control area in an image forming area to be formed on a print medium. Based on the result of the determination, a wait time is controlled which is set between a preceding scan and a succeeding scan in a plurality of scans performed within the wait time control area.05-21-2009
20120069073FLUID EJECTING APPARATUS AND IMAGE FORMATION METHOD - A fluid ejecting apparatus includes: a fluid ejecting unit that ejects a colored fluid and a colorless fluid toward a fluid ejection target medium; an irradiating unit that irradiates ultraviolet rays onto a fluid that lies on or over the fluid ejection target medium so as to cure the fluid; and a controlling unit that controls the fluid ejecting operation of the fluid ejecting unit and the ultraviolet ray irradiating operation of the irradiating unit. The controlling unit performs control so that the colorless fluid is ejected on an image that is made of the colored fluid that landed on the fluid ejection target medium. After the start of the agglomeration of the colorless fluid that landed on the image, the controlling unit performs control so that ultraviolet rays are irradiated onto the colorless fluid.03-22-2012
20090027434METHOD FOR DISCHARGING DROPLETS AND DROPLET DISCHARGE APPARATUS - A method of discharging droplets includes discharging a liquid material from a droplet discharge head and causing the droplet discharge head and a substrate as a landing target for the liquid material to move relative to each other to thereby deposit the liquid material on the substrate, feeding and removing the substrate to and from a droplet discharge apparatus provided with the droplet discharge head, performing a weight measurement discharge from the droplet discharge head substantially concurrent to the feeding and removing of the substrate to and from the droplet discharge apparatus, and measuring the weight of the liquid material discharged in the weight measurement discharge.01-29-2009
20090184993IMAGE FORMING APPARATUS AND LANDING POSITION ERROR CORRECTION METHOD - An image forming apparatus includes a carriage carrying a recording head configured to discharge a droplet. A landing position error detecting pattern is formed on a pattern forming member. Based on a result of reading the landing position error detecting pattern, a landing position error of the droplet discharged by the recording head is corrected. Either a first pattern or a second pattern is selected as the landing position error detecting pattern, depending on a surface condition of the pattern forming member. The first pattern produces a relatively small amount of specular reflection compared with diffused reflection, while the second pattern produces a relatively large amount of specular reflection compared with diffused reflection, upon irradiation with light.07-23-2009
20100149243Printhead IC Having Temperature Based Ejection - A printhead IC is provided having an array of ejection nozzles, sensing circuitry for sensing temperatures of regions of the nozzle array, and drive circuitry for providing drive pulses to the nozzles to cause ejection. The drive circuitry is configured to set a different profile of the drive pulses for each region of the nozzle array in accordance with the sensed temperatures.06-17-2010
20110221813Liquid Ejecting Apparatus - A liquid ejecting apparatus includes a liquid ejecting head with a plurality of nozzles that eject a liquid to a medium; the liquid ejecting head has actuators (piezoelectric devices), each of which causes an ejection operation for ejecting the liquid from one of the nozzles and a protrusion operation for keeping the liquid protruded from a nozzle plane in which the nozzles are disposed. The liquid ejecting apparatus also includes a controller that identifies non-used nozzles from which not to eject the liquid to the medium to have the protrusion operation performed for the nozzles and also identifies nozzles from which to eject the liquid to have the ejection operation performed for the nozzles.09-15-2011
20090015616Liquid ejection control apparatus, liquid ejection control method and liquid ejection apparatus - A liquid ejection control apparatus which controls a liquid ejection mechanism having a plurality of nozzle groups made up of a plurality of nozzles for ejecting liquid, comprising: a usage ratio determination unit which determines a usage ratio between the plurality of nozzle groups when performing liquid ejection; a correction data generation unit which generates correction data corresponding to the determined usage ratio, by using respective correction data for correcting density of liquid ejection results corresponding respectively to a plurality of usage ratios between the nozzle groups; an image data correction unit which corrects prescribed image data on the basis of the generated correction data; and an ejection execution control unit which executes liquid ejection by driving the respective nozzle groups on the basis of the corrected image data and the determined usage ratio.01-15-2009
20090213160Printing Control System, Printing Request Terminal, Printer, and Printing Control Method - A printing control system controlling a printer performing a printing operation by ejecting a plurality of ink including specific color ink or special ink. A time interval specifying section specifies a time interval for ejecting the ink when the plurality of ink including the specific color ink or the special ink is ejected to perform the printing operation. A print data generating section generates print data for controlling the ejection of the ink every rank, which is determined as an ejection time of the ink as viewed in time series, on the basis of the time interval specified by the time interval specifying section. A printing control section allows the plurality of ink to be ejected in the time interval specified by the time interval specifying section by sequentially controlling the printer on the basis of the print data sequentially acquired from a first rank among the print data of all ranks generated by the print data generating section.08-27-2009
20100194807LIQUID EJECTING APPARATUS AND CONTROLLING METHOD OF THE SAME - A liquid ejecting apparatus executes a collective multiple liquid ejecting process of ejecting a liquid so as to superimpose the predetermined number of unit images on basic images formed on a target. The liquid ejecting apparatus includes: an ejection executing unit which ejects the liquid onto the target from an ejecting head; a position acquiring unit which acquires arrangement positions of the predetermined number of two or more basic images, at which an arrangement image in which the predetermined number of two or more unit images are arranged among the plurality of basic images formed on the target is superimposed; an image adjusting unit which detects an error between the acquired arrangement positions of the basic images and arrangement positions of the predetermined number of two or more unit images, and adjusts the arrangement positions of the unit images by allocating the detected error to each unit image.08-05-2010
20090058908Liquid jetting apparatus and maintenance method of the liquid jetting apparatus - A liquid jetting apparatus includes: a first liquid jetting head having a nozzle which jets a first liquid supplied from a first liquid supply source; a second liquid jetting head having a nozzle which jets a second liquid supplied from a second liquid supply source; a liquid shortage detecting section detecting shortage of the first liquid in the first liquid supply source; a state detecting section which detects a state of the first liquid jetting head since a time at which the shortage of the first liquid has been detected by the liquid shortage detecting section up to a time at which the shortage of the first liquid is solved; a recovery mechanism which performs a recovery operation of the first liquid jetting head and the second liquid jetting head; and a controller which controls the first liquid jetting head, the second liquid jetting head, and the recovery mechanism.03-05-2009
20090079775Liquid Ejecting Apparatus, Liquid Container, and Data Writing Method - A liquid ejecting apparatus ejects a liquid supplied from a liquid container including a storage unit in which data is written and a liquid level detector which detects a liquid level of the contained liquid. The liquid ejecting apparatus includes: an abnormality detecting unit which receives a signal indicating the liquid level of the liquid from the liquid level detector and analyzes the signal to detect abnormality of the liquid level detector; and a writing unit which writes data indicating the abnormality in the storage unit when the abnormality is detected.03-26-2009
20110227981PRINT CONTROL METHOD - A print control method performed by a print controller of an inkjet printer includes steps of heating the ink in a nozzle of the printer by applying a firing pulse of a duration less than a duration required to discharge an ink dot; sensing the temperature of the heated ink in the nozzle; sensing a voltage at an actuator heater of the nozzle; loading and updating a table listing (i) sensed values of ink temperature in the nozzle, (ii) resistivity of an actuator heater of the nozzle, and (iii) a width of the actuator heater; and changing the duration of a firing pulse used to discharge an ink dot in reference to the sensed voltage and the updated table of sensed temperature, resistivity and width values so as to produce a uniform ink dot size.09-22-2011
20110141178PRINTING APPARATUS AND METHOD FOR PRINTING - A printing apparatus which prints a print image onto a printing medium based on image data, includes a plurality of nozzles which discharge ink onto the printing medium based on the image data while relatively moving with respect to the printing medium, an intensity detector which irradiates the printing medium with irradiation light to detect a light intensity for detection which is an intensity of light through the printing medium based on the irradiation light, and a defective nozzle detector which detects a bias of a distribution of dots with the ink formed on the printing medium based on the light intensity for detection to judge whether a defective nozzle is caused based on the bias of the distribution of the dots.06-16-2011
20110141175POSITION DETECTION WITH TWO-DIMENSIONAL SENSOR IN PRINTER - An inkjet printing system includes a roller for advancing a recording medium along a recording medium advance direction; an inkjet printhead that ejects drops of ink; a carriage for moving the printhead along a carriage scan direction that is substantially perpendicular or perpendicular to the recording medium advance direction; one or more motors for driving the roller and moving the carriage; a two-dimensional sensor mounted on the carriage which two-dimensional sensor is configured to sense either: a) the recording medium; b) the roller and the recording medium; or c) the roller; and a controller for receiving electrical signals from the two-dimensional sensor and for controlling the one or more motors.06-16-2011
20130215176INKJET PRINTER AND CORRECTION VALUE ACQUISITION METHOD - In an inkjet printer, a pattern for density correction that indicates a constant density image is printed on printing paper with a head having a plurality of outlet rows, and pattern image data that indicates the pattern is acquired. A target outlet that ejects ink toward a linear region having a missing part in the pattern is detected, and a reference outlet that is included in the same outlet row as the target outlet and located close to the target outlet is specified. A density correction value of the target outlet among density correction values that are acquired based on a density profile of the pattern is replaced with a representative value of a density correction value of the reference outlet. Through this, even if an ink ejection failure occurs in any of the outlets, appropriate density correction values can be obtained for a plurality of outlets.08-22-2013
20090096826DROPLET-EJECTION DETECTING DEVICE AND RECORDING APPARATUS - A droplet-ejection detecting device for detecting ejection of droplets from a plurality of nozzle orifices, includes: a beam scanning mechanism which scans a plurality of droplet ejection lines along which droplets ejected from the nozzle orifices fly, by emitting a beam to intersect the droplet ejection lines, thereby subjecting the droplets to irradiation with the beam; a light receiving unit which receives light obtained as a result of the irradiation; and an ejection determining mechanism which determines safe ejections of the droplets from the nozzle orifices based on a received-light signal output from the light receiving unit.04-16-2009
20110227980IMAGE FORMING APPARATUS PERFORMING NON-PRINTING DISCHARGE - An image forming apparatus includes a recording head having nozzles to form an image by squirting droplets onto a recording medium, a transfer member transferring the recording medium and having holes which allows passage of droplets squirted by the recording head for non-printing discharge, an area detecting unit to detect a plurality of non-printing discharge areas that are areas between adjacent recording media, and a non-printing discharge instructing unit to cause the nozzles to perform non-printing discharge such that all the nozzles perform non-printing discharge at least once in the non-printing discharge areas.09-22-2011
20090231376Correction Value Setting Method, Liquid Ejecting Apparatus, Printing System and Storage Medium Having Program Stored Thereon - A correction value setting method includes: generating, based on a first correction value that has been set in advance and is used in correcting a density of an image to be printed on a first medium, a second correction value that has a larger correction amount than the first correction value and a third correction value that has a smaller correction amount than the first correction value; printing respectively a first pattern to which the first correction value is applied, a second pattern to which the second correction value is applied, and a third pattern to which the third correction value is applied, on a second medium that differs in type from the first medium, by ejecting liquid from a head including a plurality of nozzles that eject liquid; and setting, based on the first pattern, the second pattern, and the third pattern that have been printed on the second medium, one of the first correction value, the second correction value, and the third correction value, as a correction value used in correcting a density of an image to be printed on the second medium.09-17-2009
20110221812System and Method For Improving Throughput For Duplex Printing Operations In An Indirect Printing System - A method for performing duplex printing enables increased throughput in an indirect printing system. The method includes measuring a coverage parameter for image data to be printed, and transforming operation of the printer from a first printing process timing sequence to a second printing process timing sequence in response to the coverage parameter exceeding a predetermined threshold.09-15-2011
20120081440DROP VOLUME COMPENSATION FOR INK SUPPLY VARIATION - The present invention relates to a method that enables image quality of a printed image to be maintained by reducing unintended variations in drop volume, through the adjustment of ink drop ejecting conditions depending on the amount of ink remaining in an ink tank chamber or reservoir, and/or the ink demand for printing an image. The method of printing of the present invention comprises: providing a printhead in fluid communication with an ink chamber or reservoir; detecting at least one parameter related to an amount of negative pressure provided to the printhead; and adjusting an ink drop ejecting condition of the printhead as a function of the parameter so that an amount of variation in size of ejected ink drop is reduced.04-05-2012
20090102877METHOD AND APPARATUS FOR FORMING IMAGE - An image forming apparatus includes an apparatus body, a conveying mechanism that is provided in this apparatus body and conveys a sheet, a recording head that moves along a moving path orthogonal to a conveying direction of the sheet, ejects an ink to the sheet to print an image on the sheet, and, after the printing is finished, stands by in a first standby position on one end side of the moving path, and a CPU that moves the recording head that is on standby in the first standby position to an arbitrary position of the moving path.04-23-2009
20090102876DROPLET JET INSPECTING DEVICE, DROPLET JETTING APPLICATOR AND METHOD FOR MANUFACTURING COATED BODY - A droplet jet inspecting device includes an image pickup part taking an image of an inspection area including an area where a droplet jetted from a droplet jetting head jetting the droplet through a nozzle and a unit configured to process the image of the inspection area taken by the image pickup part and further judge a presence of a satellite droplet which is smaller than a main droplet forming the droplet and which is incidental to the main droplet.04-23-2009
20090244149LANDING POSITION DETERMINING METHOD AND DEVICE FOR PROCESSING-LIQUID EJECTION NOZZLES, AND INKJET RECORDING APPARATUS - A landing position determining method for processing-liquid ejection nozzles comprises: setting a specified processing liquid deposited pattern; ejecting the processing liquid from the processing-liquid ejection nozzles onto a recording medium to form the processing liquid deposited pattern; depositing the colored ink from a plurality of ink nozzles onto the processing liquid deposited pattern, and recording a plurality of linear colored ink images to form a processing liquid landing position determination pattern on the recording medium; detecting presence/absence of a change in at least one of densities and line widths of the plurality of linear colored ink images in the processing liquid landing position determination pattern, and determining, from at least one of density distribution and line width distribution in a linear colored ink image in which the change is present, a landing position for the processing-liquid ejection nozzle selected as the landing position determination targets.10-01-2009
20090244144Liquid coating method, liquid coating device, and method of manufacturing radiation detector - The liquid coating method includes the step of ejecting droplets from nozzles of a recording head onto an imaging region of a surface of a substrate placed on a support plate, wherein a dot pitch φ that is an interval between landing positions of the droplets on the surface of the substrate satisfies a following condition:10-01-2009
20090213157Inkjet Printing Device and Method for Printing Multi-Coloured Images - The invention relates to an ink jet printing device (08-27-2009
20090213158SIGNAL PROCESSING OF RECORDING MEDIUM INDICIA - A method of processing a time-varying output signal from a photosensor is provided. The time-varying output signal corresponds to a plurality of marks or indicia on a recording medium moving into and out of a field of view of the photosensor with the marks having been printed on the recording medium by a printing system. The method includes amplifying the time-varying output signal from the photosensor; converting the amplified time-varying output signal from the photosensor to digitized data points using an analog to digital converter; and averaging a plurality of the digitized data points.08-27-2009
20090213159Printing Apparatus - A printing apparatus includes a recording head that prints an image and an ink cartridge that stores ink to the recording head. The ink cartridge includes an ink pack and an ink-end sensor that detects an ink-end point based on the pressure of ink supplied from the ink pack. The ink pressure corresponding to the ink-end point detected by the ink-end sensor is set to a first pressure that is the minimum pressure near an outlet of the ink cartridge at which the recording head can print an image of predetermined quality. A determining unit permits starting of a printing or cleaning operation in response to a command issued before the ink-end sensor detects the ink-end point and prohibits starting of a printing or cleaning operation in response to a command issued after the ink-end sensor has detected the ink-end point.08-27-2009
20090251503Printing devise, control method for a printing device, a program, anda recording medium - A printing device having a function that adjusts for deviation that occurs between ink droplet landing positions during bidirectional printing in which ink droplets of a plurality of dot sizes are discharged to print images on a print medium, comprising a print head that discharges ink droplets having a plurality of sizes, and a control unit that sets an adjustment value for the deviation for different types of images based upon a type of image being printed.10-08-2009
20090244143INKJET PRINTER AND METHOD THEREOF FOR REGULATING PRINTING REGION - An inkjet printer and a method thereof for regulating a printing region are disclosed. The above-mentioned inkjet printer includes a paper-feeding device, a detecting device, a printer controller and an ink-jetting device. As the paper-feeding device feeds a paper, the detecting device detects the skew angle of the paper, and then, the printer controller expands the printing region for printing according to the skew angle of the paper and a look up table.10-01-2009
20090244152PIEZOELECTRIC HEAD INSPECTION DEVICE AND DROPLET JETTING DEVICE - The present invention provides an inspection device for a piezoelectric head. The piezoelectric head includes: a pressure chamber filled with liquid, a liquid supply channel that supplies the liquid to the pressure chamber, a nozzle at which droplets are jetted from the pressure chamber, and a piezoelectric element that applies pressure to the pressure chamber. The inspection device includes: a detection component that, when the piezoelectric element is driven on the basis of a predetermined detection signal, outputs a signal corresponding to behavior of an acoustic vibration system of the piezoelectric head; and a judgment component that, on the basis of the detection signal and the signal outputted by the detection component, judges for a cause of defective ejections at the piezoelectric head.10-01-2009
20090244150IMAGE RECORDING METHOD AND IMAGE RECORDING APPARATUS - An image recording method comprises the steps of: acquiring first recording characteristic information of recording elements of a recording head by reading a first test pattern formed with ejecting ink droplet from the recording elements; obtaining first density unevenness correction information based on the first recording characteristic information; acquiring second recording characteristic information of the recording element by reading a second test pattern different from the first test pattern formed with ejecting ink droplet from the recording elements; obtaining second density unevenness correction information based on the second recording characteristic information; correcting image data based on the first and second density unevenness correction information to calculate density unevenness-corrected image data; and calculating an ejection pattern of the recording element based on the unevenness-corrected image data.10-01-2009
20090244147INK JET RECORDING APPARATUS - An ink jet recording apparatus includes an ink jet head in which nozzles ejecting aqueous pigment ink in accordance with gradation are arrayed, a sub scanning driving unit which carries a recording medium having an image formed thereon with the ink, a heating unit which selectively heats an area divided into an integral multiple of a minimum recording pixel in the recording medium, and a heating control unit which determines presence and absence of an image based on image information recorded to the recording medium, and controls the heating unit.10-01-2009
20090256878PRINTING SYSTEM, INKJET PRINTER AND METHOD FOR PRINTING - A printing system includes an inkjet head and a decompressor. The inkjet head has nozzles configured to eject ink droplets of ink to a medium. Each of the ink droplets has a volume of about 1 picoliter or less. The decompressor is configured to reduce a pressure in an area between the medium and the nozzles to be a pressure value lower than atmospheric pressure.10-15-2009
20120105529Method and System For Improved Ink Jet or Printhead Replacement - A system and method is provided for compensating for a faulty ink jet in a target printhead in an ink jet imaging system having a plurality of printheads arranged to span a maximum printing width that includes defining a typical printing width less than the maximum printing width and swapping the target printhead with a printhead situated in the margin outside the typical printing width. The system and method permits swapping the target printhead with a margin printhead that has a faulty ink jet provided that the location of the faulty ink jet in the margin printhead does not coincide or align with a faulty ink jet in printheads adjacent the target printhead.05-03-2012
20120105528High Resolution Sensing and Control of Electrohydrodynamic Jet Printing - Provided are various methods and devices for electrohydrodynamic (E-jet) printing. The methods relate to sensing of an output current during printing to provide control of a process parameter during printing. The sensing and control provides E-jet printing having improved print resolution and precision compared to conventional open-loop methods. Also provided are various pulsing schemes to provide high frequency E-jet printing, thereby reducing build times by two to three orders of magnitude. A desk-top sized E-jet printer having a sensor for real-time sensing of an electrical parameter and feedback control of the printing is provided.05-03-2012
20090244146IMAGE FORMING METHOD AND APPARATUS - The image forming method forms an image on a medium by using ink and treatment liquid. The ink contains coloring material and thermoplastic resin particles in a solvent, and the treatment liquid contains a component which aggregates the coloring material. The image forming method includes: a treatment liquid deposition step of depositing the treatment liquid onto the medium to form a treatment liquid film on the medium; an ink droplet deposition step of ejecting and depositing droplets of the ink onto the medium to form an ink film on the medium on which the treatment liquid film has been formed; and an ink film drying step of heating and drying the ink film under conditions where T10-01-2009
20120194591LIQUID EJECTING APPARATUS AND METHOD FOR MANUFACTURING THE SAME - A storage unit stores temperature correction table in which the temperature T detected by the thermistor is associated with correction information of ink ejection timing, and a printer controller corrects the ink ejection timing of each recording head with reference to the temperature detected by the thermistor and the temperature correction table.08-02-2012
20120194590LIQUID-DROPLET EJECTING APPARATUS, METHOD FOR CONTROLLING THE SAME, AND NONVOLATILE STORAGE MEDIUM STORING PROGRAM FOR CONTROLLING THE APPARATUS - A liquid-droplet ejecting apparatus including: a head configured to eject liquid onto a recording medium; a curl-amount calculating section configured to calculate a curl amount of the recording medium on the basis of a location of at least one evaluation region on the recording medium and calculated amount of the liquid and the calculated number of liquid droplets to be ejected for the at least one evaluation region; and a curl suppressing section configured to change the evaluation ejection data for the at least one evaluation region on the basis of the calculated curl amount of the recording medium so as to change the amount of the liquid and/or the number of the liquid droplets to be ejected onto at least the at least one evaluation region on the recording medium to suppress the curl of the recording medium.08-02-2012
20100156980INKJET PRINTING APPARATUS, INKJET PRINTING SYSTEM, AND INKJET PRINTING METHOD - An inkjet printing apparatus, an inkjet printing system and an inkjet printing method are provided in order to correct a print density at a joint (overlapped portion) of nozzle arrays of a print head. The print density at the joint (overlapped portion) of the nozzle arrays is corrected based on a positional deviation between two adjacent nozzle arrays of the print head.06-24-2010
20100156976INKJET PRINTER HEAD ARRANGING METHOD AND INKJET PRINTER HEAD ARRANGING APPARATUS - A method and apparatus for arranging heads of an inkjet printer such that ink droplets discharged from respective multiple heads are corrected to zero degrees, X-directional positions of the multiple heads are precisely mechanically arranged, and Y-directional positions of the multiple heads are precisely arranged by software. The inkjet printer head arranging apparatus includes: ink droplet formation units forming ink droplets on a substrate by arranging a plurality of heads in a row and injecting ink to the substrate through the heads; a sensing unit sensing the ink droplets formed on the substrate; a position calculation unit calculating the positions of the sensed ink droplets; a correction value calculation unit calculating position correction values for the heads using the positions of the calculated ink droplets; and a position correction unit correcting the positions of the heads using the calculated position correction values of the heads.06-24-2010
20090315935INKJET RECORDING APPARATUS AND INKJET RECORDING METHOD - Gradation data for each color to be input to a recording apparatus includes dot-recording-position information for every unit pixel and information for determining a nozzle position in a recording head for recording a dot. The information for determining the nozzle position makes determination in accordance with image data of an ink with resin and image data of an ink without resin. In a region where the ink with resin and the ink without resin overlap with each other, the ink without resin can land first.12-24-2009
20100156975INKJET PRINTING APPARATUS - In an inkjet printing apparatus using plural line type inkjet printing heads for one color ink, and forming an image by dividing image data into pieces corresponding to the plural printing heads, a complementary printing operation using a simple configuration is achieved without causing a substantial decrease in printing speed even when one printing head has a poorly ejecting nozzle. When a one printing head has a poorly ejecting nozzle, a corresponding nozzle of another printing head complements the printing operation assigned to the poorly ejecting nozzle. At this time, the same piece of divided image data is fed to the one and the other printing heads. Then, the printing operation of the one printing head is made invalid only at the timing of driving the poorly ejecting nozzle, and the printing operation of the second printing head is made valid only at the timing of driving the corresponding nozzle.06-24-2010
20100177134INKJET IMAGE FORMING APPARATUS AND METHOD OF PRINTING IMAGE USING THE SAME - An inkjet image forming apparatus and a method of printing an image using the same includes determining the positions and number of defective nozzles incapable of properly spraying ink. It is determined whether the array head is in a printable state or a restoration procedure to restore the defective nozzles to a normal state is required, based on the determined positions and number of the defective nozzles. When the array head is in the printable state, a printing operation may be performed. When the restoration procedure to restore the defective nozzles to a normal state is required, the restoration procedure is performed, the positions and number of the defective nozzles are predetermined, and it is predetermined whether the array head is in the printable state.07-15-2010
20100156981INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - An ink jet printing apparatus and an ink jet printing method are provided in which information about an ink amount ejected on each of unit areas into which a preceding print medium is divided and information about a size of a following print medium are acquired. A delay time for delaying a printing operation for the following print medium is set based on the information about the ink amount ejected on unit areas which are decided among the divided unit areas according to the information about the size of the following print medium.06-24-2010
20100156982EJECTION STATUS DETERMINING METHOD FOR INKJET PRINTING HEAD - The present invention is to provide, for each nozzle, a temperature sensor that detects a temperature change accompanying driving an ejection heater. In the temperature change, an inflection point appears when an ink is ejected normally. Then, calculated is a summation of absolute values of the differences between a value of second derivative in each point of temperature data in a predetermined section including the timing at which this inflection point appears and a first threshold value based on the second derivative when an ejection-failure occurrence. Since the second derivative when the ejection-failure has occurred does not vary virtually, the summation becomes to be approximately zero. Therefore, appears clearly the difference with the time of normal ejection. From the magnitude relation between the summation and a second threshold value predetermined with respect to the summation, it can be determined whether the normal ejection is being carried out for every nozzle.06-24-2010
20100156979INKJET PRINTING APPARATUS AND PRINTING METHOD - In an inkjet printing method of performing printing on a printing medium by ejecting inks from a printing head configured to eject chromatic inks and an achromatic ink while moving the printing head, high-quality printing with few boundary stripes produced when the amount of inks is large is realized without complicated control being performed. To this end, print data in a boundary and the vicinity thereof is divided into unit regions, and for each unit region, performed are (A) a first reduction processing which determines a hue of the unit region based on amounts of the chromatic inks, and reduces the amount of chromatic inks applied to the unit region according to the determined hue; and (B) a second reduction processing which reduces an amount of achromatic ink based on the amount of achromatic ink applied to the unit region.06-24-2010
20100182367IMAGE FORMING APPARATUS, IMAGE FORMING METHOD AND COMPUTER-READABLE STORAGE MEDIUM - An image forming apparatus performs a 1-pass recording by a single main scan with respect to a recording medium by a nozzle group including different overlapping nozzles that scan the same overlapping region on the recording medium to record dots. Alternatively, a multi-pass recording is performed by a plurality of main scans with respect to the overlapping region by the same nozzle group or by different nozzle groups. The recording in a central portion of the overlapping region is performed by placing emphasis on the succession or continuity of the dots, while the recording in boundary portions of the overlapping region is performed by placing emphasis on the scattering of the dots.07-22-2010
20100177136LIQUID DISCHARGING APPARATUS AND METHOD FOR DETECTING MALFUNCTIONING NOZZLES ON THE BASIS OF IMAGE DATA - To shorten time for an abnormal discharge test and time for cleaning; and to reduce the amount of drain ink used at the time of the abnormal discharge test and the cleaning. A liquid drop discharging apparatus comprising: a plurality of nozzles that discharge liquid drops; a sensor that detects a malfunctioning nozzle at which abnormal discharge occurs when the liquid drop is supposed to be discharged therefrom; and a controller that determines whether the liquid drop is discharged or not from each of the nozzles on the basis of image data, the controller causing the sensor to detect the malfunctioning nozzle among the nozzles that are determined to discharge the liquid drops on the basis of the image data.07-15-2010
20100194810LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS USING LIQUID DISCHARGE HEAD - In order to provide a compact and highly reliable recording head enabling precise detection of temperature information on each nozzle and rapid as well as highly accurate detection on nozzles with a discharge defect, a liquid discharge head including a liquid discharge head with a plurality of electrothermal transducing members provided on a substrate to generate heat energy for discharging liquid from a discharge port includes a temperature detecting element formed immediately under each of the plurality of electrothermal transducing members to sandwich insulating film and a temperature detecting circuit for detecting temperature information from each of the temperature detecting elements.08-05-2010
20100182364Liquid Ejecting Apparatus and Method of Controlling the Same - A method of controlling a liquid ejecting apparatus including a liquid ejecting head having a supply portion, an ejecting portion, a discharge portion, and a filter portion dividing an internal passage within the head into an upstream passage communicating with the supply and discharge portions and a downstream passage communicating with the ejecting portion, and further including pumps respectively connected to the supply and discharge portions, and a control portion configured to control the pumps so as to satisfy P07-22-2010
20100259576LIQUID DISCHARGING APPARATUS AND LIQUID CHANGING-OVER METHOD - A liquid discharging apparatus includes a discharging section which discharges liquid, a plurality of supply sections which each supply a plurality of different kinds of liquid to the discharging section, a changing-over section which changes over the plurality of supply sections, thereby connecting one of the plurality of supply sections to the discharging section, and a control section which receives instructions for liquid changing-over operation which changes over the connection to the discharging section from a first supply section among the plurality of supply sections to a second different supply section, thereby selecting one of first and second methods for the liquid changing-over operation on the basis of the remaining amount of first liquid acquired by a remaining amount acquisition section which obtains the remaining amount of the first liquid in the first supply section, and controls the execution of the liquid changing-over operation by the selected method.10-14-2010
20130215177Printing Device and Method of Controlling Printing Device - A printing device includes a nozzle for discharging liquid, a counter that counts the number of signals for defining a cycle in which the liquid is discharged through the nozzle, and a discharge control portion that controls such that the liquid is not discharged through the nozzle when the number of signals counted by the counter is larger than a predetermined threshold value.08-22-2013
20130215178INKJET RECORDING APPARATUS AND IMAGE RECORDING METHOD - According to the inkjet recording apparatus and the image recording method of the present invention, since the droplet volume of droplets ejected from ejection abnormality nozzles is limited to not greater than a prescribed upper limit value, and the droplet volume of droplets ejected from other normally functioning nozzles is corrected on the basis of correction values used for correction of non-uniformities in the image caused by ejection abnormality nozzles, then in even in cases where the interval between droplets ejected from adjacent nozzles which are adjacent to an ejection abnormality nozzle becomes larger due to landing interference, in particular, it is possible to perform image recording by using droplets m ejected from deflecting nozzles. As a result of this, the occurrence of non-uniformities (stripe non-uniformities) in the image can be suppressed.08-22-2013
20130215179LIQUID DISCHARGE HEAD, AND LIQUID DISCHARGE HEAD DEVICE, LIQUID DISCHARGE APPARATUS AND PRINTING METHOD USING LIQUID DISCHARGE HEAD - To provide a liquid discharge head usable in a non-horizontal state, and a liquid discharge head device, a liquid discharge apparatus and a printing method, each of which uses the liquid discharge head. The liquid discharge head includes a passage member and a plurality of pressurizing parts. The passage member includes a plurality of liquid discharge holes, a plurality of liquid pressurizing chambers connected correspondingly to the liquid discharge holes, and a plurality of common passages (manifolds) which are respectively connected to the liquid pressurizing chambers, and are independent of each other. Individual opening regions to cover locations that permit opening of the liquid discharge holes connected to one of the common passages occupy a smaller area than a liquid discharge hole opening region to cover locations that permits opening of all of the liquid discharge holes. The pressurizing parts pressurize the plurality of liquid pressurizing chambers, respectively.08-22-2013
20100188454DROPLET EJECTION APPARATUS - A droplet ejection apparatus includes a common flow path; droplet ejection units each respectively including a first distribution port; first flow paths that respectively connect each first distribution port to the common flow path; first open/close mechanisms provided respectively at the first flow paths; a first pressurizing unit that applies a positive pressure to the common flow path; a second open/close mechanisms provided at the common flow path at the first pressurizing unit side of connection portions that connect the common flow path and the respective first flow paths; and a controller. When the second open/close mechanism is closed, the controller opens only one or more first open/close mechanisms corresponding to one or more target droplet ejection units, applies positive pressure to a section of the common flow path at the first pressurizing unit side of the second open/close mechanism, and then opens the second open/close mechanism.07-29-2010
20100225691System And Method For Correcting Stitch And Roll Error In A Staggered Full Width Array Printhead Assembly - A method evaluates printhead position in a staggered full width array (SFWA) printhead assembly. The method includes selecting a first printhead configuration for printing a first test pattern on an image receiving member, generating positional correction data for roll and stitch displacements obtained from captured image data of the first test pattern, comparing the positional correction data to at least one threshold in a displacement range, and operating at least one printhead actuator in accordance with the positional correction data in response to the positional correction data exceeding at least one predetermined threshold in the displacement range.09-09-2010
20100149242IMAGE FORMING APPARATUS - An image forming apparatus includes an ink discharge unit including nozzles to discharge ink and to form an image on a recording medium; a conveyer belt to convey the recording medium so that the recording medium passes through an area facing the ink discharge unit, the conveyor belt including blank discharge holes to let the ink for a blank discharge through; a control unit to control an ink discharge operation of the ink discharge unit; a blank discharge receiver to receive the ink for the blank discharge, provided at a position facing the ink discharge unit across the conveyor belt; and a belt position detection unit to detect a position in a direction perpendicular to a belt moving direction of the conveyor belt, wherein the control unit controls the blank discharge operation of the ink discharge unit based on a detection result detected by the belt position detection unit.06-17-2010
20100225694LIQUID EJECTING HEAD UNIT AND LIQUID EJECTING APPARATUS - A liquid ejecting head unit includes: a liquid ejecting head which includes a nozzle row formed by nozzles arranged in series so as to eject a liquid onto a printing medium; and a base plate which retains the liquid ejecting head, wherein a linear expansion coefficient of the base plate in a first direction as a relative moving direction between the printing medium and the liquid ejecting head is larger than that in a second direction perpendicular to the first direction.09-09-2010
20100225693Recording device, control method, and recording medium - A recording device including a paper feeder tray that accommodated a recording medium, a print head that discharges ink on the recording medium to record an image thereon, a transfer roller that transfers the recording medium and a printed test chart on which multiple marks are arranged, a control device that controls the transfer roller, a first detection device that detects a rotation position of the transfer roller, a second detection device that detects the multiple marks arranged on the printed test chart, and a transfer device that transfers the recording medium from the paper feeder tray to the second detection device, wherein the control device obtains an difference between an actual transfer amount of each of the multiple marks obtained by detecting the multiple marks by the second detection device and a predetermined theoretical transfer amount of each of the multiple marks relating to a rotation position of the transfer roller, calculates a correction amount for the rotation amount of the transfer roller based on a relationship between the rotation position of the transfer roller and the difference, and controls the rotation amount of the transfer roller using the correction amount.09-09-2010
20100225692INKJET PRINTING CORRECTION METHOD AND INKJET PRINTING APPARATUS - An inkjet printing correction method is used with an inkjet printing apparatus. The inkjet printing correction method includes the following steps. Firstly, a first test image file is printed out as a print test pattern by the inkjet printing apparatus. Then, the print test pattern is scanned to obtain a second test image file. Then, all second block intervals are compared with respective first block intervals, thereby obtaining correction interval difference data. According to the comparing results, a procedure of ejecting ink droplets from the ink nozzles is determined to be advanced or delayed.09-09-2010
20100253729PRINTING APPARATUS - A printing apparatus includes at least two print head groups, each print head group having at least one print head for printing on a printing medium by ejecting ink, the print head being movable; and at least two image processing sections, each image processing section being provided for each of the print head groups, the image processing section being capable of processing an image to be printed on the printing medium using the print head that belongs to the print head group corresponding to that image processing section.10-07-2010
20100238224INK JET PRINTING APPARATUS AND METHOD - A method for controlling a printing position for a printing apparatus for using a plurality of printing heads to print an image is provided. This method prevents, even when a conveyed print medium has deformation such as deflection, a printing position of a print medium from being dislocated. To realize this, components 09-23-2010
20100238221RECORDING APPARATUS AND RECORDING POSITION ADJUSTMENT METHOD - A recording apparatus for recording an image on a recording medium and causing a recording head to perform scanning in a scanning direction includes an acquisition unit configured to acquire a recording position deviation amount of the recording head in each of a plurality of positions in the scanning direction, an addition unit configured determine a corrected recording deviation amount by adding to the acquired recording position deviation amount, a correction amount that varies based on one raster or a number of rasters, and a recording unit configured to record the image with the recording head based on the corrected recording deviation amount.09-23-2010
20100238222INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD - An inkjet printing apparatus and an inkjet printing method are realized which can improve a print quality while minimizing the volume of waste ink, running cost and throughput degradations. For this purpose, the scan width is set according to the size and position of the print medium and then, based on that scan width, a location where the preliminary ejections are to be executed and the number of times that the preliminary ejection is to be executed in a single preliminary ejection session are determined.09-23-2010
20100253728CORRECTION VALUE CALCULATING METHOD AND METHOD OF MANUFACTURING LIQUID EJECTING APPARATUS - There is provided a method of calculating a correction value in a liquid ejecting apparatus in which a plurality of heads is arranged in a predetermined direction and each of the heads has a nozzle row in which nozzles ejecting a liquid on a medium are arranged in the predetermined direction. The method includes: forming a first and second pattern by a first and second operation; and calculating, on the basis of the first pattern, a first correction value and, on the basis of the first and second patterns, a second correction valve to line up a landed position of the liquid ejected in the first operation and the second operation.10-07-2010
20110012951PRINTING APPARATUS HAVING APPROPRIATE CORRECTION OF FEED AMOUNT - A printing apparatus comprises a plurality of print heads, a moving member that can be moved and that is provided with the plurality of print heads, and a feed mechanism for feeding a medium to be printed. Dots for correcting a feed amount by which the feed mechanism feeds the medium to be printed are formed on the medium to be printed by ejecting ink from a predetermined print head, among the plurality of print heads, while moving the moving member. The predetermined print head is a print head other than the print head, among the plurality of print heads, that is the most susceptible to vibration caused by moving the moving member.01-20-2011
20110057974PRINTING DEVICE AND METHOD - A printing device includes a carriage control part that reciprocates a carriage, a print control part that confirms an origin point of the carriage by a position detecting part, a carriage moving time calculation part that calculates a first moving time (B) and a second moving time (C), and a line feed time calculation part that calculates a third time (A). The first moving time is a period during which the carriage moves from a carriage position to the position detection part after print completion, and the second moving time is a period during which the carriage moves from the position detection part to a next print starting position. The third time (A) is a period during which the recording medium is carried from the print completion to the next print position. The position control part executes an origin point confirmation operation of the carriage when (B+C03-10-2011
20120194589PRINTER - A printer includes a head for performing printing, a roll element on which a print medium is wound, a first conveying mechanism for rotating the roll element, an auxiliary roller positioned between the head and the roll, a second conveying mechanism for driving the auxiliary roller, a nip roller constituting a pair with the auxiliary roller to hold the medium on both sides, a nip roller drive mechanism for driving the nip roller and creating a state in which the medium is held on both sides and a state in which the medium is not held on both sides, and a controller for setting the nip roller to a first state in which the roll element is rotated in a forward direction to convey the print medium, and a second state in which the roll element is rotated in a reverse direction to convey the print medium.08-02-2012
20100207983IMAGE RECORDING APPARATUS, IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD AND COMPUTER-READABLE MEDIUM - An image recording apparatus includes: a recording head having a plurality of recording elements; a conveyance device which conveys at least one of the recording head and a recording medium so as to cause relative movement between the recording head and the recording medium; a recording defect information acquisition device which acquires recording defect information indicating a recording element having a recording defect, of the plurality of recording elements; a recording defect correction device which corrects an image defect caused by the recording element having a recording defect, according to the recording defect information acquired by the recording defect information acquisition device; an image reading apparatus which reads in an image of a test chart for density measurement recorded by the recording head, the image of the test chart for density measurement having been corrected by the recording defect correction device; a recording density information acquisition device which acquires recording density information indicating recording density of the plurality of recording elements, according to the image of the test chart for density measurement read in by the image reading apparatus; a density correction information calculation device which calculates density correction information according to the recording density information acquired by the recording density information acquisition device; a density correction device which corrects density of image data according to the density correction information calculated by the density correction information calculation device; an uncorrected recording defect information acquisition device which acquires uncorrected recording defect information indicating a recording element having a new recording defect which has not been corrected by the recording defect correction device when the test chart for density measurement is output; and a recording density information amendment device which amends the density correction information according to the uncorrected recording defect information acquired by the uncorrected recording defect information acquisition device.08-19-2010
20100253727LABEL PRINTER, MEDIA PROCESSING DEVICE, AND MEDIA PROCESSING SYSTEM - A label printer can reliably print an object in a desired position in the printing area of a recording medium. The label printer has a carriage that moves bi-directionally in a main scanning direction over a disc-shaped recording medium; a printer tray that is disposed movably in a subscanning direction with the recording medium placed thereon; an ink head that is disposed to the carriage and prints a desired object by discharging ink to a printing area on the recording medium in conjunction with movement of the carriage in the main scanning direction and movement of the printer tray in the subscanning direction; a detection unit that is disposed to the carriage and detects a reference position alignment mark that indicates a position used as a reference for appropriately printing the object in the printing area of the recording medium; and a printing position control unit that rotates the recording medium so that the object is printed in the printing area of the recording medium based on the reference position alignment mark detection result from the detection unit.10-07-2010
20100079525REFERENCE MARK FORMING DEVICE AND RECORDING APPARATUS PROVIDED WITH THE REFERENCE MARK FORMING DEVICE - A reference mark forming device configured to form reference marks on a recorded material to be transported in a predetermined transporting direction by a transporting device at a predetermined regular pitch in the transporting direction including: a reference-mark-specific head configured to form the reference marks on the recorded material transported by the transporting device; a mark detection sensor configured to detect the reference marks formed on the recorded material by the reference-mark-specific head on the downstream side of the reference-mark-specific head in terms of the transporting direction; and a head drive unit configured to drive the reference-mark-specific head on the basis of an output signal from the mark detection sensor, in which the reference-mark-specific head and the mark detection sensor are arranged so that the relative positional relation is maintained constant.04-01-2010
20100245430Method for Minimizing Printing Defects due to Missing Nozzle in Media Processing Device - Disclosed is a method for printing a media sheet in a media processing device. The method includes aligning a first portion of a printhead of the media processing device to a print area of the media sheet. The method further includes printing the print area of the media sheet by traversing the printhead over the print area in a first direction. The printing is performed by the first portion. Further, the method includes aligning a second portion of the printhead to the print area by adjusting the media sheet relative to the printhead by an index distance in a direction perpendicular to the first direction. Thereafter, the method includes reprinting the print area by traversing the printhead over the print area in a second direction opposite to the first direction. The reprinting is performed by the second portion.09-30-2010
20110211004LIQUID EJECTING APPARATUS AND METHOD FOR CONTROLLING LIQUID EJECTING HEAD - One of the two flow passages branches from one of two ink cartridges to one of the two discharging portions and one of the two individual discharging portions. The other flow passage branches from the other ink cartridge to the other discharging portion and the other individual discharging portion. A ratio of frequency of use of each of the discharging portions, Ra, and frequency of use of each of the individual discharging portions, Rb, satisfies Ra:Rb=1:½.09-01-2011
20100039469DENSITY CORRECTION SYSTEM - A density correction system includes a conveyance unit that conveys a recording medium, a first ink ejection unit that ejects ink in a multi-drop driving system to the recording medium based on image data, a second ink ejection unit that ejects ink in the multi-drop driving system to the recording medium based on the image data and in which a volume per one drop is smaller than that of the first ink ejection unit, and a control unit that corrects number of drops from the first ink ejection unit and number of drops from the second ink ejection unit, which constitute a droplet amount for one pixel on the recording medium subjected to image formation.02-18-2010
20120194588PRINTING APPARATUS AND PRINTING METHOD - Inspection patterns of each ink are printed on a transparent medium, by the use of a print head having a plurality of nozzle groups which discharges multiple types of ink, respectively. The inspection patterns printed on the transparent medium are read by the sensor. When reading the inspection patterns, the background color is switched, by the use of a background color switching section which faces the sensor with the inspection patterns interposed therebetween and in which a background color is switched. An occurrence of a defective nozzle is determined based on a reading result of the sensor.08-02-2012
20090256877Method of calculating correction value, correctioin value calculating program, and liquid ejecting apparatus - A method of calculating a correction value includes forming a test pattern in which a dot row formed A method of calculating a correction value includes forming a test pattern in which a dot row formed by aligning dots in a direction intersecting a predetermined direction is aligned in the predetermined direction on a medium and forming information on the test pattern on the medium, calculating a correction value of the first nozzle group based on the pattern included in read-out data values in a case where the information included in the read-out data values represents that the test pattern is formed by a first nozzle group, and calculating a correction value of a second nozzle group based on the test pattern included in the read-out data values in a case where the information included in the read-out data values represents that the test pattern is formed by the second nozzle group.10-15-2009
20090251504SYSTEMS AND METHODS FOR WET IN-SITU CALIBRATION USING MEASUREMENT OF LIGHT TRANSMITTANCE THROUGH INK DEPOSITED ON A SUBSTRATE - The present invention provides inkjet print nozzle calibration systems and methods for measuring thickness of deposited ink pixel wells on a substrate. The method includes scanning a plurality of pixel wells with a thickness measurement device, wherein the pixel wells include fluid ink with evaporating solvent; re-scanning the plurality of pixel wells subsequent to the scanning; and determining an average thickness of the ink in each of the plurality of pixel wells based on measurements made during the scan and the re-scan. Numerous other aspects are provided.10-08-2009
20080316243PRINTHEAD IC WITH DE-ACTIVATABLE TEMPERATURE SENSOR AND MAINTENANCE MODE - A printhead IC is provided which has an array of nozzles, drive circuitry for receiving print data and sending drive pulses of electrical energy to the array of nozzles in accordance with the print data, and a temperature sensor connected to the drive circuitry to adjust the drive pulse profile in response to the temperature sensor output. During use, the temperature sensor can be de-activated after a period of use. The drive circuitry is configured to operate in two modes, a printing mode in which the drive pulses it generates are printing pulses, and a maintenance mode in which the drive pulses are de-clog pulses, such that, the de-clog pulse has a longer duration than the printing pulse.12-25-2008
20090322818IMAGE RECORDING APPARATUS AND INK AMOUNT CALCULATION METHOD FOR THIS IMAGE RECORDING APPARATUS - An image forming apparatus calculates an ink temperature considering a thermal capacity near nozzles and an ink circulation flow quantity of a circulation pump in addition to an ink temperature when flowing into a recording head and an ink temperature when flowing out of the recording head, and accurately estimates a waste amount of the ink ejected from the nozzles in, e.g., maintenance processing other than image formation.12-31-2009
20090189938DROPLET DISCHARGE DEVICE, DISCHARGE METHOD, METHOD FOR MANUFACTURING COLOR FILTER, AND METHOD FOR MANUFACTURING ORGANIC ELECTRO LUMINESCENT DEVICE - A droplet discharge device includes a droplet discharge head; a plurality of carriages that have the droplet discharge head and are arranged in an array; and an arrangement changing unit changing an order of the plurality of carriages in the array. In the device, the droplet discharge device discharges a liquid body to a workpiece while the droplet discharge device scans relatively to the workpiece.07-30-2009
20130127940Liquid Ejecting Apparatus - A printer includes a displacement sensor that detects a change in the relative positions of an ink cartridge and a recording head. A printer controller performs an operation for restoring a meniscus in a nozzle if the change in the relative positions detected by the displacement sensor exceeds a threshold.05-23-2013
20130127941PRINT APPARATUS, PRINT METHOD, AND PRINT SHEET - A print apparatus performing printing on a print medium that includes a lenticular lens and an ink absorption layer that absorbs ink includes a print head that ejects a plurality of types of ink and a control section that controls the driving of the print head. In the print apparatus, in a case in which at least one type of ink among the plurality of types of ink is ink the visibility of which is reduced when the ink is absorbed in the ink absorption layer, the control section controls ink different from the ink the visibility of which is reduced has been ejected before the ink the visibility of which is reduced dries when the ink the visibility of which is reduced is ejected on the side opposite to the mounting side of the lenticular lens in the print medium from the print head.05-23-2013
20130127942INKJET PRINTING APPARATUS AND PRINTING METHOD - In an inkjet printing method of performing printing on a printing medium by ejecting inks from a printing head configured to eject chromatic inks and an achromatic ink while moving the printing head, high-quality printing with few boundary stripes produced when the amount of inks is large is realized without complicated control being performed. To this end, print data in a boundary and the vicinity thereof is divided into unit regions, and for each unit region, performed are (A) a first reduction processing which determines a hue of the unit region based on amounts of the chromatic inks, and reduces the amount of chromatic inks applied to the unit region according to the determined hue; and (B) a second reduction processing which reduces an amount of achromatic ink based on the amount of achromatic ink applied to the unit region.05-23-2013
20090322816LIQUID EJECTING APPARATUS AND LIQUID EJECTING METHOD - A liquid ejecting apparatus includes: a heating unit which heats a medium; a head which ejects liquid droplets onto the medium opposed thereto; and a driving signal generating unit which generates a driving signal to be applied to the head in order to eject the liquid droplets and which generates a driving signal different in accordance with whether the heating unit is used.12-31-2009
20090073210Nozzle Device With Movement Sensor - A nozzle device is provided for an inkjet printhead. The nozzle device includes a substrate assembly defining an ink supply. A chamber-defining layer defines a nozzle chamber in fluid communication with a nozzle opening and the ink supply. An actuating arm is coupled to the substrate assembly and terminates in a paddle separating the ink supply and nozzle chamber. The actuating arm is configured to pivot during actuation so that the paddle moves and causes ink within the nozzle chamber to be ejected out through the nozzle opening. A movement sensor is configured to determine the degree or rate of pivotal movement of the actuating arm.03-19-2009
20090115809LIQUID EJECTION CONTROL METHOD AND LIQUID EJECTION APPARATUS - It is an object of the invention to achieve a liquid ejection control method and the like that allows the amount of consumed liquid to be reduced. The liquid ejection control method controls the ejection of liquid, from nozzles for ejecting liquid, onto a medium that is fed in a predetermined feed direction, and has a step of detecting a portion of the medium that is positioned on an upstream side in said feed direction, and a step of not ejecting liquid from nozzles of a plurality of nozzles that are located on the upstream side in the feed direction based on the results of the detection.05-07-2009
20090115810RECORDING APPARATUS AND RECOVERY CONTROL METHOD - A control method at the time of preliminary ejection of ink is changed between a recording area in which a nozzle used for recording is not switched every recording scanning and a recording area in which the nozzle for recording is switched every recording scanning, whereby the preliminary ejection is performed at an appropriate frequency in any recording area.05-07-2009
20090115808LIQUID EJECTING DEVICE AND METHOD OF CONTROLLING LIQUID EJECTING DEVICE - A liquid ejecting device includes a head unit group in which head units are arranged in a second direction perpendicular to a first direction in which a head unit having a nozzle group formed by aligning nozzles that eject liquids and a landing target relatively move with each other. The liquids are ejected based on ejection serial data that represents ejection or non-ejection of each of the nozzles, and the nozzle group includes a preliminary nozzle corresponding to an area outside a regulated landing area of the landing target. The liquid ejecting device further includes a meandering correction pattern forming unit that forms a meandering correction pattern along the first direction in a margin outside the regulated landing area of the landing target and a meandering correction pattern detecting unit that detects the meandering correction pattern formed in the landing target by the meandering correction pattern forming unit.05-07-2009
20090141060INKJET PRINTING SYSTEM AND DRIVING METHOD THEREOF - An inkjet printing system is provided, which comprises: a stage on which a substrate including at least two alignment keys is mounted; an inkjet head device disposed above the stage; and an alignment key sensing device disposed above the stage, wherein the inkjet head device comprises a head unit including an inkjet head, and a supporting unit which supports the head unit and scanning the substrate in a first direction, and wherein the alignment key sensing device comprises: at least two alignment key sensors for sensing positions of the alignment keys; a sensor supporting unit for supporting the at least two alignment key sensors; and a sensor position adjustment device for adjusting positions of the alignment key sensors with respect to the alignment key sensing device.06-04-2009
20110032297PRINTING METHOD, COMPUTER-READABLE MEDIUM, AND PRINTING APPARATUS - A printing method etc. capable of suppressing degradation in image quality of border sections between regions respectively printed by a plurality of nozzle rows that eject ink droplets is achieved. The printing method includes a step of setting, when at least two print heads that move in a movement direction intersecting a carrying direction and that include a plurality of nozzle rows each including a plurality of nozzles arranged in the carrying direction are moved in the movement direction, one ejecting method, of among a plurality of ejecting methods in which the nozzles for actually ejecting ink droplets are appropriately changed between an upstream-side nozzle and a downstream-side nozzle, for each of a plurality of aligned nozzle sections that are arranged such that the downstream-side nozzle of one print head and the upstream-side nozzle of the other print head, of the nozzle rows provided in different print heads, are aligned in the movement direction; and a step of ejecting ink droplets from the aligned nozzle sections according to the one ejecting method that has been set.02-10-2011
20110032296PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus includes a plurality of print element arrays each with a plurality of print elements arranged therein. The printing apparatus prints an image by time division driving in which the plurality of print elements in each print element array are divided into a plurality of blocks and in which the print elements are driven for every block. The amount of misalignment among the print element arrays in an arrangement direction of the print elements is acquired. A print element group used for printing in at least one print element arrays is changed in accordance with the acquired misalignment amount to correct the misalignment among the print element arrays. A driving order of the blocks is changed in accordance with the misalignment amount. Even in the case of the time division driving, the misalignment of the dot formation positions can be eliminated.02-10-2011
20100220137PRINTING APPARATUS - A printing apparatus includes: a liquid discharge head which includes a nozzle which discharges a liquid, and a discharge energy applying section which applies a discharge energy to the liquid to be discharged from the nozzle; a drive section which drives the discharge energy applying section; and a controller which controls the chive section based on a parameter about a usage amount of the discharge energy applying section; and when one dot is formed on a printing medium by discharging the liquid, if a predetermined threshold value is not exceeded by the parameter, the controller controls the drive section to drive the discharge energy applying section so that a first discharge energy is applied to the liquid, and otherwise, the controller controls the drive section to drive the discharge energy applying section so that a second discharge energy lower than the first discharge energy is applied to the liquid.09-02-2010
20120033006PRINTING APPARATUS AND PROCESSING METHOD THEREFOR - A printing apparatus includes a full-line printhead in which a plurality of chips, on each of which a plurality of nozzle arrays are juxtaposed, are arranged in the nozzle arrayed direction, and which prints by the entire width of a printing medium using a plurality of nozzles arranged on the plurality of chips. The printing apparatus discharges ink from a predetermined number of successive nozzles on each nozzle array of each chip toward a printing medium during conveyance, thereby forming a plurality of first patterns corresponding to at least one nozzle array of each chip on the printing medium in the nozzle arrayed direction, reads the plurality of first patterns from the printing medium during conveyance using a sensor, calculates the shift amount of an ink attached position based on the plurality of read first patterns and corrects the attached position of ink based on the shift amount.02-09-2012
20080266345INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - An object of the present invention is to provide an ink jet printing apparatus and an ink jet printing method which can prevent print quality from being degraded by a non-ejection nozzle while maintaining high-speed printing performance based on a raster division method. The present invention sequentially performs, array by array, an operation of ejecting ink through a plurality of nozzle arrays to sequentially print an image in a plurality of raster forming areas of a print medium. At this time, if an expected printing result fails to be achieved owing to a nozzle included in any of the nozzle arrays which exhibits degraded ejecting performance, degrading image quality, then the ejection order of the plurality of nozzle arrays is changed. This enables a reduction in the degradation of print quality caused by the ejecting performance of the nozzles.10-30-2008
20110037801IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - A determination is made, throughout one page, of whether a unit region is to be printed chromatically or achromatically, or nothing is to be printed; a determination is made of whether or not, in the one page, there is at least one unit region determined to be printed achromatically between two unit regions where nothing is to be printed; when it is determined that there is at least one such unit region, a determination is further made of whether or not there is at least one unit region determined to be printed chromatically between the two unit regions where nothing is to be printed; when it is determined that there is at least one such unit region, the determination results of the unit region determined to be printed achromatically are changed to chromatic printing; and printing is performed according to the changed results.02-17-2011
20100289843PRINTING APPARATUS AND CONTROL METHOD THEREFOR - A printing apparatus prints on a printing medium by scanning a printhead having a plurality of nozzle arrays in a first direction and a second direction opposite to the first direction, and has a structure in which an air flow entering the nozzle array in the scan of the printhead in the first direction becomes larger than an air flow entering the nozzle array in the scan of the printhead in the second direction. The apparatus increases, in scanning in the second direction, discharge speed of ink discharged from at least one nozzle array arranged leeward in the scanning direction of the printhead from a predetermined position on the printhead in the scanning direction to be higher than or equal to the discharge speed of ink discharged from at least one nozzle array arranged windward in the scanning direction of the printhead from the predetermined position.11-18-2010
20130135375INK-JET PRINTER - An ink-jet printer which records an image by discharging an ink onto a recording medium includes: an ink-jet head having nozzles for discharging ink droplets; a carriage which makes the ink-jet head to scan in a main scanning direction; a transport mechanism which transports the recording medium in a transporting direction intersecting the main scanning direction; and a discharge controller configured to control the ink-jet head to discharge the ink droplets from the nozzles. The discharge controller is configured to change a discharge timing of the ink droplets from reference timing to deviate the landing positions of the ink droplets in a case that at least one of the alignment direction of the nozzles and the transport direction is inclined with respect to a sub scanning direction perpendicular to the main scanning direction.05-30-2013
20130135377PRINTING APPARATUS FOR DETECTING AND AVOIDING UNPRINTABLE REGIONS ON RECORDING MEDIUMS - A printing apparatus for performing printing on a recording medium includes a printing unit configured to perform printing a plurality of images sequentially on a recording medium, a detection unit configured to detect an unsuitable area that is not suitable for printing on the recording medium, and a control unit configured to control, when the detection unit detects the unsuitable area, so as to define an unprintable region, including the unsuitable area, where the image is not to be printed on the recording medium based on a length of the unsuitable area in a direction of conveyance of the recording medium, and to continue printing the images while avoiding the set unprintable region.05-30-2013
20090002420PRINTING APPARATUS AND METHOD OF CONTROLLING THE SAME - An object of this invention is to properly prevent clogging of each nozzle in order to stably discharge ink without increasing a circuit scale even when the number of nozzles increases. For this purpose, the number of ink discharges from each printing element is stored in a memory. The number of ink discharges from each printing element that is measured from input printing data is subtracted from that stored in the memory, and the subtraction result is rewritten into the memory. The subtraction result is checked in a predetermined period, and if the number of ink discharges from each printing element is equal to or larger than a predetermined count, preliminary discharge to be performed periodically is suppressed.01-01-2009
20110001776IMAGE DATA PROCESSING APPARATUS AND LIQUID EJECTION APPARATUS - Quantizing means generates a quantized density and a quantization error component for a target pixel in a plurality of pixels. A subtracter calculates, for the target pixel, a quantization error correction component by subtracting the density of the target pixel contained in preliminary ejection data from the quantization error component output from the quantizing means. An allocator allocates the quantization error correction component calculated by the subtracter to a plurality of the pixels around the target pixel. The quantizing means outputs the quantized density and the quantization error component of the target pixel by performing an addition using the density of the target pixel contained in the image data, the density of the target pixel contained in the preliminary ejection data, and the accumulated diffused error component assigned to the target pixel by the allocator when other pixels are quantized.01-06-2011
20110109677DYNAMIC PHASE SHIFTS TO IMPROVE STREAM PRINT - A method of forming print drops includes forming drops of a first size by applying drop forming energy pulses during a unit time period, τ05-12-2011
20080278531INKJET PRINTER, INKJET PRINTER CONTROLLER AND METHOD FOR CONTROLLING THE INKJET PRINTER - An inkjet printer includes a first printer head configured to eject ink to a first printing area on a surface of a print medium to form first ink dots in the first printing area, and a second printer head configured to eject ink to a second printing area on the surface of the print medium to form second ink dots in the second printing area. A detector is configured to detect first and second printing states in the first and second printing areas, respectively. A comparing unit is configured to compare the first and second printing states. An ejection controller is configured to control ejection from the first and second printer heads. A printing state compensator is configured to compensate ejection control performed by the ejection controller according to a comparison result output by the comparing unit so that the first and second printing states are substantially equal.11-13-2008
20110025743PAPER SKEW DETECTION SYSTEM - A system and method that enables web paper skew detection by monitoring print head motor position. An inline full width array sensor actively tracks the alignment of the print heads across the print zone and actively moves the heads to maintain alignment. If the paper starts to skew across the print zone, a color misregistration error will be detected and the print units will be moves with respect to each other to maintain alignment. The absolute position of the print heads can be monitored by tracking the steps sent to each motor to maintain alignment.02-03-2011
20090066743EJECTION INSPECTING DEVICE, PRINTING DEVICE, AND EJECTION INSPECTING METHOD - An ejection inspecting device which inspects an ejection state of an ejection head, including nozzles ejecting fluid, includes fluid receiving areas corresponding to the ejection head so as to receive the fluid ejected from the nozzles. A potential difference generating unit generates predetermined potential differences between the ejection head and the fluid receiving areas. Electrical variation detecting units detect electrical variations of the fluid receiving areas. A control unit drives the ejection head to eject the fluid to the fluid receiving areas from the nozzles in a state in which the predetermined potential differences are generated between the ejection head and the fluid receiving areas by the potential difference generating unit. The ejection inspecting device also inspects the nozzles to determine whether the fluid is ejected from the nozzles on the basis of the detection results of the electrical variation detecting units in the fluid receiving areas.03-12-2009
20110109679PRINTING ORIFICE HEALTH DETECTION DEVICE - A detection device (05-12-2011
20110025744LIQUID EJECTING APPARATUS AND LIQUID EJECTING METHOD - A liquid ejecting apparatus includes: a first nozzle row in which first nozzles ejecting a first liquid are arranged in a predetermined direction; a second nozzle row in which second nozzles ejecting a second liquid are arranged in the predetermined direction; a movement mechanism moving the first and second nozzle rows in a movement direction intersecting the predetermined direction relative to a medium; a transport mechanism transporting the medium in the predetermined direction relative to the first and second nozzle rows; and a control unit repeating an image forming operation of ejecting the liquids from the first and second nozzles while moving the first and second nozzle rows in the movement direction by the movement mechanism and a transport operation of transporting the medium in the predetermined direction relative to the first and second nozzle rows by the transport mechanism.02-03-2011
20110025745Method for Applying an Undercoat in an Ink Jet Recording Apparatus - It is sought to allow a control unit part to be made up simply and at low cost, to prevent oozing out at an edge portion of a printing image and to enable inkjet printing at high quality regardless of kinds of the recording medium.02-03-2011
20090231375System And Method For Compensating For Weak, Intermittent, Or Missing Inkjets In A Printhead Assembly - A system enables surrounding inkjets to be used to compensate for missing, intermittent, or weak inkjets without requiring additional passes of the image substrate or slowing the printing process. The system includes a printhead firing signal generator configured to generate a plurality of inkjet firing signals with reference to a set of predetermined firing signal parameters, and a firing signal adjustment circuit configured to modify at least one predetermined firing signal parameter to increase a first mass of liquid ink ejected by an inkjet proximate a defective inkjet in response to a signal identifying the defective inkjet.09-17-2009
20100156977INK JET PRINTING APPARATUS AND PRINTING METHOD - An object of the present invention is to provide a printing apparatus and a printing method even with a variation in the temperature of a print head, thus keeping the quality of images resulting from printing high. Adjustment patterns used to adjust the difference in ink ejection timing between ink ejected in a forward direction and ink ejected in a backward direction during scanning are printed at a plurality of different temperatures. Adjustment values for the ink ejection timing at the respective temperatures are selected from the adjustment patterns. Then, the correction value for the ink ejection timing is calculated from the adjustment values based on the temperature detected by the detection device. Printing is then performed with the difference in ink ejection timing between the ink ejected in the forward direction and the ink ejected in the backward direction during scanning, adjusted based on the correction value.06-24-2010
20100171781METHOD OF CORRECTING ALIGNMENT ERROR OF ARRAY INKJET HEAD - A system and method of correcting an alignment error of an array inkjet head having a plurality of head chips to print a main scanning line can include determining a reference head chip, printing a plurality of reference lines in the main scanning direction to be separated from one another at a reference interval in a sub-scanning direction using the reference head chip, and printing a plurality of test lines which can be offset by a multiple m, where m is an integer, of a test interval with respect to the reference interval using other head chips, and determining one of the plurality of test lines that matches any of the plurality of reference lines of each of the head chips, and determining an amount of offset of the determined test line as an amount of offset of each head chip.07-08-2010
20110115841Printing Device, Discharge Test Device and Discharge Test Method - A discharge test device including: a head that includes a plurality of nozzles discharging liquid to a medium, a temperature obtaining section that obtains a temperature related to the head, a detection electrode that faces the head with a predetermined distance therebetween, an identification section that applies a predetermined voltage to the detection electrode and identifies an abnormal nozzle on the basis of voltage change of the detection electrode generated by liquid discharge from the nozzles, and a control section that controls the head and the identification section so that: when the temperature obtained by the temperature obtaining section is within a first temperature range, the head discharges the liquid to the medium after the identification section identifies the abnormal nozzle, when the temperature obtained by the temperature obtaining section is outside the first temperature range and within a second temperature range that is larger than the first temperature range, the head discharges the liquid to the medium without the abnormal nozzle being identified by the identification section, and when the temperature obtained by the temperature obtaining section is outside the second temperature range, the abnormal nozzle is not identified and the liquid is not discharged to the medium.05-19-2011
20090033703INKJET IMAGE FORMING APPARATUS AND METHOD TO CONTROL THE SAME - An inkjet image forming apparatus and a method to control the same to correct characteristics of a plurality of print heads of the apparatus to have uniform characteristics includes a plurality of test patterns printed according to the timing of printing of dots through a row of odd nozzles and a row of even nozzles of each of the plurality of print heads and information of the drive timing corresponding to a brightest test pattern of the printed test patterns is stored. When a normal print operation is performed, a different drive timing is applied to each of the plurality of print heads based on the stored information, thereby compensating for the difference between the one or more characteristics of the print heads.02-05-2009
20100165029Printhead Nucleation Detection Using Thermal Response - A method for determining the pulse width for driving printhead nozzles in a thermal inkjet printer. The printhead is preheated to a desired temperature during a maintenance mode. The printhead nozzle heaters are successively driven in respective heating intervals, where each successive heating interval is characterized by shorter drive pulse width pulses occurring at a higher pulse frequency. The printhead temperature data received during each heating interval is processed to determine a respective temperature slope. The temperature slopes are compared to a desired threshold temperature slope, and when a match is found, the pulse width associated with the matched temperature slope is used to drive the nozzle heaters during subsequent printer operations to print characters on a print medium07-01-2010
20100165031VARIABLE RESOLUTION IN PRINTING SYSTEM AND METHOD - In one aspect, the invention features a method for operating a printing system with variable laydown, including providing the system with print job information, selecting an ink laydown based on the print job information, generating firing instructions for the printing system based on the ink laydown, and printing an image on a substrate at the ink laydown.07-01-2010
20100165030INKJET RECORDING APPARATUS - On a region of a recording medium that is scanned by overlapping portions of overlapping heads a plurality of times, an image is recorded in at least one scan, without using ejection nozzles in one nozzle array corresponding to the overlapping portions of the overlapping heads and by using ejection nozzles in the other nozzle array corresponding to the overlapping portions.07-01-2010
20110211005LIQUID EJECTING APPARATUS - A printer includes first and second ejecting sections of which positions of nozzles are different from each other in a sub scanning direction, and an ejecting section group. The ejecting section group includes first and second individual ejecting sections of which the positions of the nozzles are same in the sub scanning direction. When a frequency of ejecting the liquid using the first and second ejecting sections and the first and second individual ejecting sections are Ra, Rb, Rc and Rd, the first mode in which Ra:Rb:Rc:Rd is 1:1:1:0, a second mode in which Ra:Rb:Rc:Rd is 1:1:0:1 and a third mode in which Ra:Rb:Rc:Rd is 1:1:0.5:0.5 are selected on the basis of the residual amounts of the ink.09-01-2011
20110211003PRINTING APPARATUS - Images are sequentially printed on a first surface of a sheet, and identification information for identifying an image is formed each time an image is printed. When printing is interrupted by the error and before resuming printing, the identification information formed on the first surface of the sheet fed from the reverse unit again is read by the reader, and an image to be printed on the second surface when resuming printing is specified based on the read identification information.09-01-2011
20110085001Ejection Examination Apparatus and Printing Apparatus - A small-sized module configured of a detection electrode and a determination unit is provided.04-14-2011
20110084997DETERMINING A HEALTHY FLUID EJECTION NOZZLE - A method of determining a healthy fluid ejection nozzle includes measuring changes in impedance across the nozzle as fluid passes through it. A printhead includes a metal probe that intersects an ink nozzle and an integrated circuit to sense a change in impedance across the nozzle through the metal probe.04-14-2011
20100220138POSITION DETECTING DEVICE, LIQUID EJECTING APPARATUS AND METHOD OF DETECTING SMEAR OF SCALE - A position detecting device for detecting a position of an object, includes a light emitting portion that emits light, a light receiving portion that receives the light from the light emitting portion, and a scale that is arranged between the light emitting portion and the light receiving portion, and includes a position detecting pattern and a smear detecting pattern. The position detecting pattern has a first light transmitting portion for transmitting the light from the light emitting portion and a first light interception portion for intercepting the light from the light emitting portion which are alternately arranged in a detection range of the object. The smear detecting pattern for detecting smear of the scale has a second light transmitting portion for transmitting the light from the light emitting portion and a second light interception portion for intercepting the light from the light emitting portion which are alternately arranged.09-02-2010
20110084999INKJET PRINT APPARATUS AND INKJET PRINT METHOD - An objective is to provide an inkjet print apparatus and an inkjet print method capable of a print without concentration unevenness. To achieve the objective, in a multiple-pass print using mask patterns each having low-print-percentage areas and high-print-percentage areas, the print-percentage difference between high-print-percentage areas and low-print-percentage areas is cancelled out in left-edge and right-edge parts of an image to be printed.04-14-2011
20110084998Discharge Inspection Apparatus and Discharge Inspection Method - A discharge inspection apparatus includes: a first electrode for detection which faces a nozzle, that discharges liquid of a first potential, at a predetermined interval and has a second potential different from the first potential; a second electrode for detection which faces a nozzle, that discharges the liquid of the first potential, at a predetermined interval and has the second potential; an inspection section which inspects whether or not liquid is discharged from the nozzle on the basis of electrical changes which occur at the first electrode for detection and the second electrode for detection due to the discharging of the liquid of the first potential from the nozzle; a first insulating receiving section which holds the first electrode for detection; and a second insulating receiving section which holds the second electrode for detection and is disposed with a space interposed between the second receiving section and the first receiving section.04-14-2011
20100188453DROPLET EJECTING APPARATUS - A droplet ejection apparatus includes droplet ejection units each including a supply port and an ejection port, a common supply flow path, a common discharge flow path, supply flow paths that connect the supply port to the common supply flow path, openable mechanisms provided at the supply flow paths, discharge flow paths that connect the ejection port to the common discharge flow path, one-way valves provided at the discharge flow paths, a pressure applying unit, and a controller. When performing a maintenance operation of a selected droplet ejection unit, the controller applies a pressure with the pressure applying unit so that the pressure in the plural discharge flow paths at the common discharge flow path side with respect to the respective one-way valves is higher than the other side, and opens only the openable mechanism corresponding to the selected droplet ejection unit.07-29-2010
20110085000PRINTING APPARATUS AND PRINTING METHOD - There is provided a technique for suppressing the image quality of a printed image. A printing apparatus including: a first nozzle row in which nozzles ejecting dye ink of a certain color are arranged in a predetermined direction; a second nozzle row in which nozzles ejecting pigment ink of the certain color are arranged in the predetermined direction.04-14-2011
20100013882CONTINUOUS WEB PRINTING SYSTEM ALIGNMENT METHOD - A method of aligning a printhead is described herein. The method includes accelerating a media along a process path, controlling a first printhead to form a first mark upon the accelerating media, detecting the first mark on the accelerating media, comparing a first mark detection data with first printhead desired alignment data, determining a first correction based upon the comparison of the first mark detection data, and modifying an alignment of the first printhead based upon the determined first correction.01-21-2010
20090322817FLUID EJECTING APPARATUS, AND FLUID EJECTING METHOD - A fluid ejecting apparatus includes a drum that rotates while holding a medium on its outer periphery, a head that ejects a fluid on to the medium held on the periphery of the drum, a fixing section that fixes the fluid ejected on to the medium by the head, a measuring section that measures a diameter of the drum, and a controller that varies an ejection timing of the fluid ejected from the head in accordance with variation in the diameter of the drum measured by the measuring section.12-31-2009
20100039468ADJUSTMENT METHOD - A method of adjusting a print apparatus includes: a first nozzle array configured of nozzles which are aligned in a predetermined direction to eject a liquid to a medium; a second nozzle array configured of nozzles which are aligned in the predetermined direction to eject a liquid to a medium; a base plate on which the first nozzle array and the second nozzle array are disposed on positions shifted in a direction cross to the predetermined direction; and a moving mechanism which moves the base plate and a medium relative to each other in a moving direction, wherein a first pattern is formed by the first nozzle array, and a second pattern is formed by the second nozzle array so as to be adjacent to the first pattern in a direction cross to the moving direction, and wherein an inclination of the base plate with respect to the moving direction is adjusted on the basis of an interval between the first pattern and the second pattern in a direction cross to the moving direction.02-18-2010
20100060688LIQUID APPLICATION APPARATUS, LIQUID APPLICATION METHOD AND IMAGE FORMING APPARATUS - A liquid application apparatus includes: an application member which applies a first liquid to a recording medium; and a liquid holding member which abuts against the application member so as to form a liquid holding space in which the first liquid is held in such a manner that the first liquid held in the liquid holding space is applied to the recording medium via the application member by rotating the application member, wherein a supply port for supplying the first liquid in the liquid holding space and a recovery port for recovering the first liquid from the liquid holding space are provided in the liquid holding member, and the supply port and the recovery port are located in different positions in terms of vertical direction.03-11-2010
20100066779METHOD AND SYSTEM FOR NOZZLE COMPENSATION IN NON-CONTACT MATERIAL DEPOSITION - A method of printing is provided where printing is using a first printing unit having redundant nozzles. Then, the method may include stopping the printing with the first printing unit while continuing the printing with active nozzles of a second printing unit. The method may include inspecting the first printing unit and identifying faulty nozzles, then designating the faulty nozzles as inactive and designating inactive nozzles of the first printing unit as a new active nozzle. According to some embodiments the method may include moving the first printing unit to an inspection zone prior to inspecting while continuing the printing with active nozzles of a second printing unit and moving the first printing unit back to the printing zone after inspection and continuing the printing with the first printing unit.03-18-2010
20100053249LIQUID EJECTING APPARATUS AND EJECTION INSPECTING METHOD - Provided is a liquid ejecting apparatus including: a liquid ejecting head that causes liquid to be ejected from nozzle openings by driving of an ejection driving portion; a driving signal generation portion that generates a driving pulse for driving the ejection driving portion; a liquid receiving portion that is disposed so as to oppose a nozzle forming face of the liquid ejecting head and receive the ink ejected from the nozzle openings; and an ejection inspecting portion that detects an electrical variation occurring between a conductive portion of the liquid ejecting head and the liquid receiving portion when liquid is ejected towards the liquid receiving portion from the nozzle openings in a state where an electric voltage is applied between the conductive portion and the liquid receiving portion, thereby inspecting the ejection and non-ejection of the liquid from the nozzle openings. The driving signal generation portion generates an ejection inspection driving pulse for use in an ejection inspection process by the ejection inspecting portion and corrects the waveform of the ejection inspection driving pulse in accordance with the ambient temperature.03-04-2010
20100238223DOT POSITION MEASUREMENT METHOD AND APPARATUS, AND COMPUTER READABLE MEDIUM - The dot position measurement method includes: a line pattern forming step of forming a measurement line pattern including a plurality of lines formed by dot sequences corresponding to respective recording elements on a recording medium, by continuously recording dots by the recording elements while causing a recording head having the recording elements and the recording medium to move relatively to each other in a relative movement direction, the measurement line pattern including: a plurality of line blocks each constituted of a group of lines to be recorded using the recording elements spaced a prescribed interval apart in an effective direction of alignment of the recording elements which is perpendicular to the relative movement direction, the line blocks being formed at mutually different positions in a lengthwise direction of the lines on the recording medium; and a reference line block containing lines to be recorded by the recording elements which are common respectively with the recording elements forming the line blocks; a reading step of reading the measurement line pattern formed on the recording medium in the line pattern forming step by an image reading device, and acquiring electronic image data representing a read image of the measurement line pattern; a position-in-line-block identifying step of identifying line positions in each of the line blocks and the reference line block, from the read image acquired in the reading step; and a position correcting step of correcting the line positions of the line blocks determined in the position-in-line-block identifying step in accordance with the reference line block, by employing a correction function using a piecewise polynomial expression.09-23-2010
20110175960LIQUID EJECTION APPARATUS AND LIQUID EJECTION METHOD - A liquid ejection apparatus comprising a liquid chamber for accommodating a liquid to be supplied from a liquid tank, an ejection port for ejecting droplets of the liquid by applying a pressure to the liquid in the liquid chamber, a pressure application unit for applying the pressure to the liquid in the liquid chamber a liquid-holding structure for holding the liquid on the atmosphere side of the ejection port so as to cover the ejection port with the liquid; and a liquid-removing unit for removing the liquid held on the atmosphere side of the ejection port. The liquid-removing unit controls a timing of ejecting the droplets from the ejection port.07-21-2011
20110175958FLUID EJECTING APPARATUS AND FLUID EJECTING METHOD - A fluid ejecting apparatus includes a head that is provided with a first-nozzle-row and a second-nozzle-row, a platen that is provided with a plurality of convex-portions, and a control unit repeats an operation of ejecting fluid from the nozzles moving in two directions of a forward-path and a backward-path. The control unit adjusts the ejecting time such that, at the medium of the convex-portions, an amount-of-deviation in the movement-direction of the dots formed on the forward-path and the backward-path by the first-nozzle-row is less than an amount-of-deviation of the dots formed on the forward-path and backward-path by the second-nozzle-row. In the ejection operation, and such that the position in the movement-direction of the dots formed by the second-nozzle-row is a position opposite to the side on which the head moves in the movement-direction with respect to the position in the movement-direction of the dots formed by the first-nozzle-row.07-21-2011
20100134549INKJET PRINTING SYSTEM AND METHOD - An inkjet printing system and method for printing comprising a printhead having two columns of nozzles, and the printhead is in fluid communication with an ink source and in electrical communication with a controller. In response to the print control signals transmitted from the controller, the printhead ejects ink from the two columns in alternating succession to print images having a checkerboard pattern.06-03-2010
20100134547PRINTING APPARATUS, PRINTING METHOD, AND PROGRAM - A printing apparatus includes: a first head which has a plurality of nozzles arranged at a predetermined pitch in a predetermined direction; a second head which has a plurality of nozzles arranged at the predetermined pitch in the predetermined direction in the predetermined direction and which is spaced from the first head by a predetermined distance in a direction intersecting the predetermined direction; and a controller which controls the first and second heads so that one of the first and second heads prints the contour of a character or a line image and both the first and second heads print a portion of the character or the line image other than the contour, when printing the character or the line image in the direction intersecting the predetermined direction.06-03-2010
20100134548INKJET RECORDING APPARATUS - An inkjet recording apparatus includes a recording head that includes a discharge port face on which a plurality of discharge ports for discharging ink is formed, a cap configured to cap the discharge port face, a suction recovery unit configured to suck ink from the recording head via the cap, and a control unit configured to control the suction recovery unit so that a suction amount changes based on elapsed time from when the discharge port face is capped by the cap, in a state where ink discharged from the recording head is present, wherein the control unit controls the suction recovery unit so that the suction amount decreases as the elapsed time increases when the elapsed times does not exceed a first time.06-03-2010
20100134546PRINTING APPARATUS, PRINTING METHOD, AND PROGRAM - A printing apparatus includes: a first head which has a plurality of nozzles arranged at a first pitch in a predetermined direction; a second head which has a plurality of nozzles arranged at a second pitch larger than the first pitch in the predetermined direction and which is spaced from the first head by a predetermined distance in a direction intersecting the predetermined direction; and a controller which controls the first and second heads so that only the first head prints the contour of a character or a line image and at least the second head prints a portion of the character or the line image other than the contour, when a print image is the character or the line image.06-03-2010
20110085002METHOD AND DEVICE FOR PRINTING IMAGE - Disclosed is a method for printing an image, comprising a step of rasterizing an image to be printed in view of a first resolution to generate a first data bitmap; a step of splitting the first data bitmap according to a ratio of the first resolution to a second resolution to generate second data bitmaps; and a step of outputting the second data bitmaps to a printer with the second resolution for printing. Disclosed is also a device for printing images. The method and device for printing an image may solve the problem in the prior art that the definition of an image printed from a printer is too low and improve the definition of an image printed from a printer.04-14-2011
20090027435LIQUID EJECTION APPARATUS, IMAGE FORMING APPARATUS AND LIQUID STORAGE AMOUNT JUDGMENT METHOD - The liquid ejection apparatus has: a sub tank having a liquid chamber which stores liquid, a gas chamber which fills with gas, and a flexible film which divides the liquid chamber from the gas chamber; a liquid tank which is connected to the liquid chamber and stores the liquid; a liquid conveyance device which conveys the liquid between the liquid chamber and the liquid tank; an ejection head connected to the liquid chamber; a control device which carries out control in such a manner that pressure in the gas chamber is controlled to control back pressure of the liquid in the ejection head; a liquid pressure determination device which determines pressure in the liquid chamber; a gas pressure determination device which determines the pressure in the gas chamber; and a liquid storage amount judgment device which judges whether or not an amount of the liquid stored in the liquid chamber is within a tolerable range in which the back pressure of the liquid in the ejection head can be controlled, according to a gas-liquid pressure differential which is a difference between the pressure of the liquid chamber determined by the liquid pressure determination device and the pressure of the gas chamber determined by the gas pressure determination device.01-29-2009
20110074852HANDHELD IMAGE TRANSLATION DEVICE - Systems, apparatuses, and methods for a handheld image translation device are described herein. The handheld image translation device may include an image capture module to capture surface images of a medium and a positioning module to determine positioning information based at least in part on navigational measurements and/or the captured surface images. A print module of the handheld image translation device may cause print forming substances to be deposited based at least in part on the positioning information. Other embodiments may be described and claimed.03-31-2011
20110074851LIQUID EJECTING APPARATUS - A liquid ejecting apparatus, including: a feeding mechanism which feeds a recording medium; a first ejection head including a first ejection opening for ejecting first liquid and a first energy generating portion which generates an energy for ejecting the first liquid; an image-data storage section storing image data for ejecting the first liquid onto dot areas on the recording medium; an image-recording controlling section which controls the first energy generating portion based on the image data; a flushing-data producing section which produces flushing data for flushing; and a flushing controlling section which controls the first energy generating portion such that a flushing dot is formed on the recording medium, wherein the flushing-data producing section produces the flushing data such that the flushing dot is landed on one of the dot areas which is distant, by a specific area, from an edge dot area corresponding to an edge of the image.03-31-2011
20110069101DEVICE AND METHOD TO IMPROVE THE PRINT QUALITY OF AN INKJET PRINTER - In a method or device to improve print quality of an ink printer, ink droplets of predetermined size are ejected by an ink print head via a nozzle. A time duration is determined since a last ejection of an ink droplet. The size of a next ink droplet to be ejected is controlled depending on the determined time duration.03-24-2011
20080252674Liquid ejecting apparatus and method of controlling same - A liquid ejecting apparatus for ejecting droplets by driving heat generating elements includes an electrical current source configured to output temperature measurement current; a plurality of head chips, each having a heat generating element, a temperature sensor whose resistance value changes with temperature, a switch circuit that connects the temperature sensor to the electrical current source, and a switch-circuit control circuit configured to control the switch circuit; and a heat-generating-element control circuit configured to measure temperatures of the plurality of head chips and controlling the driving of the heat generating elements via an end of the electrical current source on the temperature sensor side. The temperature sensors of the plurality of head chips are sequentially and selectively connected to the electrical current source by the switch circuits of the plurality of head chips, and the temperatures of the plurality of head chips are measured by the heat-generating-element control circuit.10-16-2008
20100277536ELECTRONIC DEVICE HAVING ESSENTIAL HARDWARE AUTHENTICATION - An electronic device having an embedded computer system is provided. The device has a processor supporting a real-time operating system (RTOS). The processor further supports user and supervisor modes. The computer system is programmed such that only code portions directly controlling essential hardware in the device are run in supervisor mode. The code portion directly controlling essential hardware communicates with at least one authentication chip in the device before an operation of the hardware, the authentication chip authorizing the operation11-04-2010
20100259575METHOD FOR PRINTING - A method of printing including providing an ink delivery system including a print head in fluid communication between a first tank and a second tank; and providing a pressure differential across the print head to cause ink to flow from the print head. With embodiments of the method, ink can be controllably dispensed from the print head at substantially the same velocity irrespective of the orientation of the print head with respect to the direction of the force of gravity.10-14-2010
20100097422Print Control Apparatus, Print Control Method, and Storage Medium - A print control apparatus includes a setting section and a print controlling section. The setting section enables or disables a first function of sorting paper by performing longitudinal printing in which printing is performed in longitudinal orientation for paper ejection in the longitudinal orientation and lateral printing in which printing is performed in lateral orientation for paper ejection in the lateral orientation alternately. The setting section further enables or disables a second function of barcode printing. The print controlling section controls printing in accordance with setting of each of the first function and the second function. When one of the first function and the second function is enabled, the setting section disables the other function.04-22-2010
20110148967METHOD FOR DETECTING AN OPERATING STATE OF A FLUID CHAMBER OF AN INKJET PRINT HEAD - In a method for detecting an operating state of at least one fluid chamber of an inkjet print head, after having generated a pressure wave in the fluid chamber, a resulting pressure wave in the fluid chamber is detected. A detection signal corresponding to the detected pressure wave is then generated and a state indicator is determined from the detection signal using a wavelet window, the state indicator being suitable for deriving an operating state of the fluid chamber. This method enables reliable state detection. In an embodiment, it is enabled to perform the state detection between subsequent droplet ejections, thereby obtaining a highly reliable inkjet process.06-23-2011
20090289984PRINTING METHOD, PRINTING APPARATUS, PRINTING SYSTEM, AND STORAGE MEDIUM - A printing method that can suppress drops in voltage due to discharging of piezo elements is achieved. A printing method includes: generating a drive signal for driving a piezo element by selecting, based on print data, either a first original drive signal having a unit signal for defining the start to the end of an operation of causing the piezo element to eject ink by changing a voltage of the piezo element using a first reference voltage as a reference, or a second original drive signal having a unit signal for defining the start to the end of an operation of causing the piezo element to eject ink by changing the voltage of the piezo element using a second reference voltage as a reference; ejecting ink using the piezo element by applying the generated drive signal thereto to charge/discharge the piezo element; and charging the piezo element so that the voltage thereof attains either the first or second reference voltage during a predetermined period during which neither the first nor the second original drive signal is selected.11-26-2009
20090244145RECORDING METHOD - A method for recording an image based on image data in a recording region of a recording medium being transported in a predetermined transportation direction includes forming a first reference mark in a recordable region, including the recording region, of the recording medium using a first colored liquid containing a colorant; supplying an uncolored liquid containing no colorant uniformly over the entire recordable region of the recording medium; forming a second reference mark in the recordable region of the recording medium using a second colored liquid containing a colorant; detecting the amount of misalignment between the first reference mark and the second reference mark; calculating the total amount, excluding the content of the colorant, of first colored liquid to be used to record the image based on the image data on the recording medium for each unit area of the recording region of the recording medium.10-01-2009
20080246792METHOD AND APPARATUS FOR SCALABLE DROPLET EJECTION MANUFACTURING - A method includes ejecting liquid having a first composition from a first droplet ejection deposition system that includes a first printhead and a first fluid source, collecting information on the behavior of the liquid under a variety of ejection conditions for the first droplet ejection deposition system, and ejecting liquid having the first material composition from a second droplet ejection deposition system that includes a second printhead and a second fluid source under the selected ejection conditions. The first printhead has a small number of flow paths, and the first fluid source is configured to hold a small volume of liquid. The second printhead has a plurality of substantially identical flow paths, each of the flow paths being substantially identical to at least one of the small number of flow paths, and there being a significantly larger number of flow paths in the second printhead than in the first printhead.10-09-2008
20090009551Liquid Ejecting Apparatus and Method of Ejecting Liquid - A liquid ejecting apparatus includes a head including a nozzle array in which nozzles for ejecting liquid droplets on a medium are aligned, a transport mechanism that transports the medium in a transport direction, a moving mechanism that moves the head in a moving direction that is a direction for intersecting the transport direction, a position determining mechanism that can position the head in a first position in which the direction of the nozzle array is a predetermined direction with respect to the transport direction and a second position in which the direction of the nozzle array is a direction different from the predetermined direction, and a controller that ejects liquid droplets on the medium with the head moving in the moving direction by using the moving mechanism in a case where the head is positioned in the first position, and transports the medium in the transport direction and ejects liquid droplets by using the head without moving the head in a case where the head is positioned in the second position.01-08-2009
20090167801INK-JET RECORDING APPARATUS - The present invention provides an inkjet recording apparatus includes an inkjet head, a conveyor, a printing controller, an image sensor, a blocking object determining unit, and a blocking object dealing unit. The inkjet head has an ejection surface in which plural ejection outlets ejecting ink are formed. The conveyor has a placing member on which a recording medium is placed and conveys the placing member to a position opposing the ejection surface. The printing controller causes the conveyor to convey the placing member to the opposing position and causes the inkjet head to eject the ink towards the opposing position. The image sensor captures an image of at least one of (i) a surface of the recording medium placed on the placing member, (ii) a surface of the placing member, and (iii) the ejection surface. The blocking object determining unit determines, based on the image captured by the image sensor, whether an object which blocks the flight of the ink exists between the ejection outlets and the opposing position so as to obstruct at least two neighboring ejection outlets among the ejection outlets. The blocking object dealing unit carries out a predetermined blocking object dealing operation when the blocking object determining unit determines that the object blocking the flight of the ink obstructs at least two neighboring ejection outlets among the ejection outlets.07-02-2009
20100039471Inkjet Printhead with Overlapping Segments - An inkjet printhead has a pair of adjacent printhead segments having overlapping ink ejection nozzles. A degree of overlap of the printhead segments is determined, and a half toning of a continuous tone image is provided. The half toning is provided by a dither matrix outputting a dither value to an adder, the adder having an overlap input signal which varies depending on the degree of overlap between the adjacent printhead segments. The half toning is adjusted in a region of overlap between the adjacent printhead segments to reduce artifacts between the adjacent printhead segments.02-18-2010
20110254890Printing Device And Printing Method - The throughput of a serial printer is improved. A inkjet printer 10-20-2011
20100321437METHOD FOR CORRECTING UNEVENNESS IN DENSITY FOR IMAGE RECORDING APPARATUS - Disclosed is a method for correcting unevenness in density. An image density and presence or absence of a miss fire of ink is detected from an inspection pattern recorded by an image recording apparatus. Density information of a nozzle causing a miss fire of ink is substituted with density information of a nozzle existing in the periphery of the nozzle causing a miss fire of ink.12-23-2010
20100321436PRINTING APPARATUS AND METHOD FOR ADJUSTING PRINTING POSITION - By subtracting a first parameter related to the printing position deviation inherent to the printing head from a second parameter that is obtained by actually measuring the printing position deviation in a state where the printing head is mounted on the printing apparatus, a third parameter related to the printing position deviation inherent to the printing apparatus is acquired. When a new printing head is mounted on the printing apparatus, a new second parameter is computed from the third parameter and a first parameter that is of the new printing head. By this procedure, it is possible to hold down a time required for actual measurement of the printing position deviation and consumables, and even when the printing head is exchanged, it becomes possible to stably output a uniform image free from the printing position deviation.12-23-2010
20100321435METHOD FOR THE UNIVOCAL MARKING OF MATERIALS, AND INK FOR CARRYING OUT THE SAME - Described herein is a method for unique marking of various materials that can be obtained using an ink formulated with micronized microparticles and/or microencapsulated microdrops of various nature dispersed in a suitable vehicle; said ink, once applied to each individual product, forms an original and distinctive map.12-23-2010
20120200626APPARATUS AND METHOD FOR PRINTING THREE DIMENSIONAL ARTICLES - An apparatus for printing an image onto a curved surface of a three dimensional article. The apparatus principally includes a support fixture, an ink jet print head having a plurality of nozzles, and an articulatable robotic arm. One of the support fixture and the print head is mounted to and carried by the robotic arm. The robotic arm is moveable so as to cause relative movement of the print head along a series of scanning paths that follow the surface contour of the curved surface of the article. A controller is coupled to the robotic arm and is configured to cause articulation of the robotic arm. The controller causes the robotic arm to continuously locate the print head relative to the curved surface and to cause the plurality of nozzles to eject printing medium at predetermined locations along the scanning paths so as to form the image.08-09-2012
20080238971Method of Selecting Objects To Be Printed For A Hand-Held Printer - Methods for selecting elements of information displayed on a computer screen for printing by a hand-held printer that preferably incorporates the capability of a computer mouse to more efficiently capture and print such information thereby minimizing the time and effort required for printing such information.10-02-2008
20080204496INK-JET RECORDING APPARATUS - An ink-jet recording apparatus, including: a cartridge mount on which an ink cartridge that stores ink is to be replaceably mounted; a recording head which ejects the ink toward a recording medium; an ink passage through which the ink is supplied from the cartridge mount to the recording head; an ink discharger which discharges the ink; and a controller including (a) a cartridge judgment section which judges whether the ink cartridge mounted on the cartridge mount is a subject cartridge that satisfies a predetermined condition or not and (b) a discharger control section which controls the ink discharger to discharge at least the ink in the ink passage when the cartridge judgment section has judged that the ink cartridge mounted on the cartridge mount is the subject cartridge.08-28-2008
20110254889FIFO METHODS, SYSTEMS AND APPARATUS FOR ELECTRONICALLY REGISTERING IMAGE DATA - Disclosed are FIFO type methods, systems and apparatus for electronically registering image data relative to a rastering device or other marking device. According to an exemplary method, a FIFO type data queuing configuration is provided, where the length of data memory segments associated with the FIFO are a function of a spatial profile associated with the ink jet rastering device.10-20-2011
20130120484INKJET PRINTING APPARATUS AND DETERMINATION METHOD OF DRIVING PULSE APPLIED TO INKJET PRINTING APPARATUS - An inkjet printing apparatus comprise a printhead including a temperature sensor and an element array formed by arraying a plurality of heat generation elements each of which generates a thermal energy required to discharge an ink in response to application of a driving pulse, a specifying unit configured to specify a portion used in printing of the element array, and a selection unit configured to select a driving pulse to be applied to the respective heat generation elements based on the portion specified by the specifying unit and a temperature of the printhead measured by the temperature sensor.05-16-2013
20130194337PRINTING CONTROL DEVICE, PRINTING CONTROL METHOD, AND STORAGE MEDIUM - A printing control device comprising: a receiving unit configured to receive an instruction to perform adjustment of the number of droplets to be ejected from ejection ports of an ejection head on a unit region of a printing medium, the ejection ports corresponding to an energy generation element, the energy generation element using electrical energy to generate energy for ejecting liquid; and a decision control unit configured to decide an amount of the electrical energy to be applied to the energy generation element corresponding to the ejection ports so that each of the ejection ports ejects the droplets; wherein the decision control unit decides whether to decide an amount of the energy in response to the receiving unit's receiving the instruction.08-01-2013
20110134177INK JET PRINTING APPARATUS AND METHOD - Through the use of a mask with an appropriate pattern, depending on dot size or density, in an in jet printing apparatus, image defects caused by conveyance distance errors are suppressed. More concretely, at the masking unit A an interlaced mask pattern is used and a masking process is performed with respect to 2 pl dot data obtained from the dot pattern development unit 06-09-2011
20100302296METHOD FOR CONTROLLING DROPLET DISCHARGE DEVICE AND DROPLET DISCHARGE DEVICE - A method is for controlling a droplet discharge device including at least a droplet discharge head having a plurality of nozzles for discharging droplets of a functional liquid, a plurality of drive elements provided corresponding to each of the nozzles, and a vibrating plate which is vibrated by the drive elements to discharge the functional liquid from the nozzles; and a flushing unit in which the vibrating plate undergoes microvibration when the droplet discharge head is in a standby period. The method for controlling a droplet discharge device includes selecting one of a plurality of predetermined microvibration control programs for causing the vibrating plate to undergo microvibration in accordance with information relating to the functional liquid, and controlling the drive elements to cause the vibrating plate to undergo microvibration when the droplet discharge head is in the standby period in accordance with the selected microvibration control program.12-02-2010
20110164083Liquid Droplet Ejection System and Control Program of Ejection Condition of Compositions - When using a liquid droplet ejection method, a conventional photomask is not required, however, it is required instead that a moving path of a nozzle or a substrate is controlled with accuracy at least in ejecting liquid droplets. According to the characteristics of compositions to be ejected or their pattern, such ejection conditions are desirably set as the moving rate of a nozzle or a substrate, ejection quantity, ejection distance and ejection rate of compositions, atmosphere of the space that the compositions are ejected, the temperature and moisture of the space, and heating temperature of the substrate. A liquid droplet ejection system in accordance with the invention comprises an input means for inputting data of a thin film pattern, a set means for setting a nozzle for a ejecting a composition containing a material for forming the thin film or setting a moving path of the substrate to which the composition is ejected, an image pick-up means for detecting an alignment marker formed on a substrate and a control means for controlling the moving path of the nozzle or the substrate.07-07-2011
20110096116INKJET PRINTHEAD, PRINTING APPARATUS, AND PRINTING METHOD - This invention is directed to provide an inkjet printhead, printing apparatus, and printing method capable of correcting a shift of the printing position caused by variations of the discharge characteristic between nozzles. To accomplish this, the inkjet printhead includes memories which hold block numbers used to time-divisionally drive nozzles. The block numbers are written in consideration of the discharge characteristics of the printhead during the manufacturing process of the printhead. When the inkjet printhead is mounted in the printing apparatus, the printing apparatus reads out block numbers corresponding to respective nozzles from the memories. Based on the numbers, the printing apparatus changes block selection signals for the respective nozzles, and transfers the changed block selection signals to the inkjet printhead to drive it.04-28-2011
20100097421IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus includes an image forming portion to form an image on a sheet using an erasable ink, a sheet supply tray to load the sheet on which the image was formed using the erasable ink, a mark detecting portion to detect a mark indicating that the image formed on the sheet conveyed from the sheet supply tray includes a confidential information, and an overwriting portion to overwrite so as not to make recognizable the image of at least an area including the confidential information out of the image formed on the sheet, in case that the mark is detected by the mark detecting portion.04-22-2010
20110175959THERMAL FLUID-EJECTION DEVICE DIE - A die for a thermal drop-on-demand fluid-ejection device includes thermal firing resistors, low-side switches, and high-side switches. The thermal firing resistors are organized over resistor groups such that each thermal firing resistor is located within only one of the resistor groups. The resistor groups are lesser in number than the thermal firing resistors. Each thermal firing resistor has a first end and a second end. The low-side switches are equal in number to the thermal firing resistors. Each low-side switch connects the second end of a corresponding thermal firing resistor to a low voltage. The high-side switches are equal in number to the resistor groups. Each high-side switch connects the first ends of the thermal firing resistors of a corresponding resistor group to power providing a voltage greater than the low voltage.07-21-2011
20100214338COMPENSATION FOR THERMAL DISTORTION IN A PRINTING SYSTEM - A method of compensating for thermally induced misalignments in a printing system includes measuring two or more temperatures of a structure within the printing system, mathematically differencing the two or more temperatures to produce a differenced value, inputting the differenced value into a correlation equation, the correlation equation predicting a misalignment of a target printing system component, and compensating for the predicted misalignment of the target printing system component.08-26-2010
20100079527IMAGE RECORDING APPARATUS AND IMAGE RECORDING METHOD - The image recording apparatus includes: a recording head which has at least one row of recording elements arranged at a prescribed arrangement interval in a sub-scanning direction, the recording head having overlap sections at both end portions of the recording head, an arrangement density of the recording elements as expressed as a number of the recording elements per unit length gradually becoming smaller towards an end of the recording head in each of the overlap sections; a scanning device which moves the recording head in a main scanning direction with respect to a recording medium; a conveyance device which conveys the recording head and the recording medium relatively to each other in the sub-scanning direction; and a conveyance control device which controls the conveyance device, wherein where s is a number of multiple passes which is a number of recording actions on a same main scanning line, D is a maximum value of the arrangement density of the recording elements, and k is a ratio of a recording density in the sub-scanning direction with respect to the maximum value D of the arrangement density of the recording elements, the conveyance control device controls the conveyance device so as to move at least one of the head and the recording medium in such a manner that the overlap sections of the recording head are mutually complemented by means of s×k movements in the sub-scanning direction, and a remainder that is obtained by multiplying a total amount of movement to each of the s×k movements in the sub-scanning direction by the maximum value D of the arrangement density of the recording elements and multiplying a resulting product by the recording density ratio k, and then dividing a resulting product by the recording density ratio k, becomes a combination of values from 0 to k−1 that are equal in number to the number of multiple passes s.04-01-2010
20100079526IMAGE RECORDING APPARATUS AND IMAGE RECORDING METHOD - The image recording apparatus includes: a recording head which has at least one row of recording elements arranged at a prescribed arrangement interval in a sub-scanning direction; a scanning device which moves the recording head in a main scanning direction so as to perform recording of a same main scanning line by means of a plurality of scans in the main scanning direction with respect to a recording medium; a conveyance device which conveys the recording head and the recording medium relatively to each other in the sub-scanning direction; a recording control device which controls the recording head to perform recording by using at least two of the recording elements in the recording of the same main scanning line; a recording element selection device which selects a combination of the recording elements to perform recording of the same main scanning line in accordance with a status of each of the recording elements; and a conveyance control device which determines a combination of feed amounts in the sub-scanning direction corresponding to the combination of the recording elements selected by the recording element selection device and controls the conveyance device in accordance with the determined combination of feed amounts in the sub-scanning direction.04-01-2010
20100066780Liquid Ejecting Apparatus and Method of Forming Nozzle Test Pattern - A liquid ejecting apparatus includes a head that includes a plurality of nozzles disposed for each color of liquids and ejects liquids from the plurality of nozzles onto a medium; and a control unit that sets one of the plurality of nozzles as a test target nozzle and forms a nozzle test pattern used for testing defective liquid-ejection of the test target nozzle on a transparent color medium by landing the liquids ejected from the test target nozzle and a different nozzle of the plurality of nozzles, which is different from the test target nozzle, on the transparent color medium so as to be overlapped with each other.03-18-2010
20100066778Inkjet Recording Apparatus - An inkjet recording apparatus includes a nozzle, a charging electrode, a deflecting electrode, a storage device, and an authentication device. The nozzle atomizes a supplied ink into ink particles by exciting and ejecting the supplied ink. The charging electrode electrically charges the ink particles. The deflecting electrode forms an electric field that deflects the ink particles electrically charged. The storage device storing therein a program(s) that implements a predetermined printing function(s). The predetermined printing function(s) becomes executable upon connection of an authentication key to the authentication device.03-18-2010
20100194809Liquid Ejection Method and Liquid Ejection Apparatus - A liquid ejection method includes determining, according to image data, an ejection pixel that is a pixel at which a liquid is to be ejected and a non-ejection pixel that is a pixel at which a liquid is not to be ejected; determining, according to the image data, a nozzle requiring flushing; and ejecting liquid from the nozzle requiring flushing to the non-ejection pixel adjacent to the ejection pixel, the non-ejection pixel being among pixels associated with the nozzle requiring flushing.08-05-2010
20100194811PRINTING METHOD AND PRINTING APPARATUS - A printing method of the present invention includes the steps of: carrying a medium and ejecting ink from a print head to print, on the medium, a mark that can be filled in by a user; detecting, with a sensor, whether or not the mark has been filled in; and performing a process in accordance with a result of the detection by the sensor. With this printing method, operations with respect to a printing apparatus can be performed with ease.08-05-2010
20100194805INKJET RECORDING APPARATUS AND INKJET RECORDING METHOD - An inkjet recording apparatus includes: a treatment liquid deposition device which deposits on a recording medium a treatment liquid having a function to aggregate inks or increase viscosity of inks; an ink deposition device which includes a plurality of ink heads for ejecting the inks of at least two types in such a manner that the inks are deposited on the recording medium on which the treatment liquid has been deposited; and a heating-pressuring device which fixes the inks that have been deposited on the recording medium, wherein the ink deposition device ejects the inks from the plurality of ink heads in such a manner that following Relationships (A) and (B) are satisfied where M08-05-2010
20100194806LIQUID EJECTING APPARATUS AND LIQUID EJECTING METHOD - A liquid ejecting apparatus including a liquid ejecting head which ejects a liquid from a nozzle passage, a heating unit which heats and dries the liquid attached to an ejection medium, a temperature measuring unit which is disposed at a predetermined region near the liquid ejecting head, a temperature calculating unit which calculates a temperature of the liquid ejected from the liquid ejecting head based on the initial temperature measurement and a temperature correction table which associates time obtained after operation of the heating unit with a temperature of the liquid and which calculates a temperature of the liquid based on a descending correction table associating a difference between a temperature obtained immediately after interruption of the heating unit and an outside ambient temperature, and a driving waveform correcting unit which corrects a head driving waveform of the liquid ejecting head on the basis of a calculation result.08-05-2010
20090262158IMAGE RECORDING DEVICE AND IMAGE RECORDING METHOD - An image recording device comprises: a recording head that has a plurality of recording elements; non-uniformity information acquiring unit that acquires non-uniformity information of each recording element by using a test pattern; non-uniformity correction coefficient calculating unit that calculates a non-uniformity correction coefficient value for each density as recording characteristics of the recording element; misfiring correction coefficient calculating unit that calculates a misfiring correction coefficient value for each density in a case where a nearby recording element is misfiring as the recording characteristics of the recording element; selecting unit that selects one of the recording characteristics for each recording element based on pixel density data of image data and the misfiring information detected by misfiring information detecting unit; and correction processing unit that corrects the pixel density data using the recording characteristics selected by the selecting unit.10-22-2009
20110187778DROPLET SELECTION MECHANISM - A method and droplet selection device are provided for a continuous printer for selectively ejecting a second droplet and to have it collided with a predefined first droplet. In particular, the device comprises a first droplet ejection system arranged to generate a continuous stream of first droplets from a fluid jetted out of an outlet channel; and a second droplet ejection system arranged to generate second droplets for colliding the second droplets into the first droplets so as to selectively deflect the first droplets from a predefined printing trajectory. The second droplet ejection system comprises a control circuit to selectively eject the second droplet and to have it collided with a predefined first droplet.08-04-2011
20110187776Multiple Inkjet Cannon Printing System - The present invention is directed toward a system for printing on a moving substrate. The present invention comprises at least a first inkjet cannon and a second inkjet cannon, both the first inkjet cannon and second inkjet cannon positioned for printing on a moving substrate. The first inkjet cannon and the second inkjet cannon are controlled to allow for simultaneous printing of two messages on the moving substrate. The simultaneous printing may be controlled by two or more subcontrollers. A speed sensor or a trigger sensor may be attached for more precisely controlling the printing on the moving substrate.08-04-2011
20110134178PRINTING APPARATUS AND PRINTING CONTROL METHOD - The printing apparatus includes: an image formation device which performs front-side printing to form a front-side image on a front side of paper according to front-side image data, and then performs rear-side printing to form a rear-side image on a rear side of the paper according to rear-side image data; a device which predicts an amount of size variation occurring in the paper during a period from a time of depositing ink in the front-side printing to a time of starting the rear-side printing; a device which calculates a correction amount for correcting a difference between actual sizes of the front-side and rear-side images at a time of depositing ink in the rear-side printing, according to the predicted amount of size variation; and a device which corrects the front-side image data and/or the rear-side image data to be supplied to the image formation device, according to the calculated correction amount.06-09-2011
20110148965INKJET PRINTING APPARATUS AND RECOVERY METHOD - An inkjet printing apparatus of the present invention is equipped with a recovery device for recovering an ink ejection state of a print head. The print head has a plurality of nozzle rows each for ejecting an ink of a different color, and a nozzle surface. The recovery device performs wiping of the nozzle surface and preliminary ejection from the print head. After the wiping, an evaluation patch is created by performing the preliminary ejection onto a printing medium, and the number of preliminary ejections of a specific nozzle is increased to a number larger the number of preliminary ejections of other nozzles based on an image of the evaluation patch. It is possible to appropriately decide the number of preliminary ejections for each nozzle according to color mixture parts that vary for every apparatus.06-23-2011
20110187780LIQUID EJECTING APPARATUS AND LIQUID EJECTING METHOD - A liquid ejecting apparatus is characterized by a configuration in which it has a first carriage movement mode, in which a stop position of a carriage in movement of this time is determined to be at a given position in a width direction on the basis of a size in the width direction of a liquid-ejected medium, and a second carriage movement mode, in which the stop position of the carriage in the movement of this time is determined on the basis of at least one of the liquid ejection data in this movement and the liquid ejection data in the next movement, and liquid ejection is carried out with one of the first carriage movement mode and the second carriage movement mode selected in accordance with a setting mode that is a mode set up with respect to liquid ejection.08-04-2011
20110187781LIQUID EJECTING APPARATUS AND LIQUID EJECTING METHOD - A liquid ejecting apparatus includes a first carriage movement mode, in which a stop position of a carriage in movement of this time is determined to be at a given position in a width direction on the basis of a size in the width direction of a liquid-ejected medium, and a second carriage movement mode, in which the stop position of the carriage in the movement of this time is determined on the basis of at least one of the liquid ejection data in the movement of this time or the liquid ejection data in the movement of the next time, and liquid ejection is carried out with one of the first carriage movement mode and the second carriage movement mode selected in accordance with the type of liquid-ejected medium.08-04-2011
20110187777Ink Drop Position Correction In The Process Direction Based On Ink Drop Position History - A method compensates for changes in drop velocity of drops emitted by inkjets in a printhead of an ink jet imaging device. The method includes adjusting image data used to generate firing signals for an inkjet ejector in a printhead of an inkjet imaging device with an initial ink drop correction parameter, adjusting a portion of the adjusted image data with another ink drop correction parameter in response to the portion of the adjusted image data corresponding to a predetermined firing pattern mask, generating firing signals for the inkjet ejector from the adjusted image data, and transmitting the generated firing signals to the inkjet ejector in the printhead.08-04-2011
20090174745PRINTER AND DETACHABLE PRINTER TRAY - A liquid-ejecting apparatus includes a tray having a hole, a mark section provided in an area adjacent to the hole, a boundary section located between the hole and the mark section, a sensor detecting the boundary section, and a controller executing control of liquid ejection based on liquid ejection data. The liquid-ejecting apparatus determines a reference position in the hole on the basis of the boundary section and ejects liquid on the basis of information including the reference position.07-09-2009
20090174744Fluid ejection device and mounting position determination method - An output voltage of a paper-width detector is input while a carriage is moved leftward in a main scan direction. Whether a mounting position of a test element member in the main scan direction falls within a generally horizontal design basis range is determined based on the position of the carriage and reference information. The position of the carriage in the main scan direction is determined from a signal of a linear encoder when a right edge of the test element member is detected in response to a substantial change in the output voltage of the paper-width detector. Whether a mounting position of the test element member in a substantially vertical direction falls within a vertical design basis range is determined based on the mounting position of the test element member in the substantially vertical direction determined from the output voltage of the paper-width detector and the reference information.07-09-2009
20090174743Ink ejecting apparatus - An ink ejecting apparatus includes: a nozzle, configured to perform a first flushing ejection of ink at a flushing position at a first timing, and configured to perform a dot forming ejection of ink to form an image on a target medium; a first calculator, configured to calculate a first amount of fresh ink assumed to be supplied to the nozzle at a second timing that an ink droplet is ejected in the dot forming ejection; a comparator, configured to compare the first amount with a second amount of fresh ink to be supplied to the nozzle to perform the second ejection; and a second calculator, configured to calculate a third amount of ink to be ejected. by the first flushing ejection so that the first amount becomes no less than the second amount based on the difference and the denaturation of ink.07-09-2009
20090174742APPARATUS AND METHOD FOR MEASURING THICKNESS OF INK LAYER IN PIXEL - Provided are an apparatus and method for measuring the thickness of an ink layer in a pixel and a method of controlling nozzles of an inkjet head using the apparatus and method. The apparatus includes: a substrate; a plurality of pixels disposed on the substrate and filled with ink due to a printing operation; first and second electrodes corresponding to the pixels, the first and second electrodes disposed on opposite sides of each of the pixels; and a capacitance measurement circuit electrically connected to the first and second electrodes to measure the capacitance of each of the pixels.07-09-2009
20100020120PRINTHEAD IC WITH TEMPERATURE BASED DE-CLOG EJECTION - A printhead IC is provided having an ejection nozzle, drive circuitry for generating drive signals for driving the ejection nozzle, and a temperature sensor connected to the drive circuitry. The drive circuitry adjusts the drive signals in response to output of the temperature sensor so as to generate the drive signals as print signals and de-clog signals. The de-clog signals have a longer duration than the print signals.01-28-2010
20110032298PRINTING METHOD - A method of printing an image on a substrate effected by moving the substrate past a print head during a printing operation and printing the image by printing a plurality of strokes. Printing each stroke includes emitting a plurality of drops of ink from the print head. The method includes receiving image data defining an image to be printed, the image data including data relating to a characteristic of the image; selecting printer control data defining the plurality of drops of ink which are to be emitted from the print head to print a stoke, the selecting being based upon data indicating a maximum number of drops of ink which can be emitted from the print head during a stroke and the characteristic of the image; and printing the image based upon the data defining the image to be printed and the printer control data.02-10-2011
20100110132DROPLET SIZE IN INKJET PRINTING - A printer control unit (05-06-2010
20080246791INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD - One or more scans used to apply a specific ink are varied according to the overlapping conditions of the specific ink and a non-specific ink, and bias in the specific ink nozzle usage frequency and bias in the printing ratio among passes is suppressed. For this purpose, one or more scans used to apply the specific ink are determined on the basis of applying amount information for the specific ink and the non-specific ink. For example, the one or more scans used to apply the specific ink are determined such that the ratio of specific ink applied by the last half of plural scans is greater for a unit pixel whose application ratio of non-specific ink to specific ink is greater than a predetermined ratio than for a unit pixel whose application ratio of non-specific ink to the specific ink is less than the predetermined ratio.10-09-2008
20110018924RECORDING APPARATUS AND METHOD FOR CONTROLLING THE RECORDING APPARATUS - A recording apparatus includes a recording head configured to scan a recording medium and record an image on the recording medium. The recording apparatus includes a recording buffer to store image data representing one pixel with a plurality of bits, a reading unit to read, from a storage area of the recording buffer, image data corresponding to a region including a boundary between two regions recorded on the recording medium in successive scanning and recording operations, a thinning unit to thin out image data based on a thinning rate corresponding to the image data read by the reading unit, a storage unit to store image data thinned out by the thinning unit in the storage area of the recording buffer, a quantization unit to perform quantization processing on the image data stored in the recording buffer when the image data is transferred to the recording head, and a recording unit to perform recording based on the image data quantized by the quantization unit.01-27-2011
20120306956HEAT CONTROL DEVICE OF INKJET HEAD AND CONTROL METHOD - According to one embodiment, a heat control device of an inkjet head includes an inkjet head unit in which plural inkjet heads each including plural nozzles are arranged side by side, and a control part that performs multiphase-division driving of the nozzles and controls discharge of ink from the respective nozzles. The control part ON/OFF controls a precursor minute vibration for each line information set according to discharge pattern information irrespective of data information including the discharge pattern information to cause the respective nozzles corresponding to respective pixel data constituting a drawn image to discharge ink according to the pixel data.12-06-2012
20120306955INKJET PRINTER HAVING AUTOMATED CALIBRATION - An inkjet printer includes a printer carriage positioned on a first side of a platen and that moves across at least a portion of the platen; a light source positioned on a second side of the platen which second side is different from the first side; a sensor positioned on the printer carriage that detects an amount of light illuminated from the light source; an electronic device that receives data indicating the amount of light transmitted through a media patch with known characteristics; wherein the electronic device compares the amount of transmitted light to stored target values to determine a variation of the sensor response for forming a correction factor; wherein the electronic device uses the correction factor to calibrate at least a first signal of the inkjet printer.12-06-2012
20120127226METHOD OF PRINTING WITH ANTI-CURL SOLUTION - A method of printing with an inkjet printer, the method includes a) providing a printhead including at least first drop ejector array and a second drop ejector array; b) providing a carriage for moving the printhead along a printing region of the inkjet printer; c) providing an ink supply that is fluidically connected to the first drop ejector array; d) providing an anti-curl solution supply that is fluidically connected to the second drop ejector array; e) providing a controller for controlling the printing operations of the printer; f) advancing a portion of recording medium into the printing region; g) moving the carriage along a first carriage scan direction while the second drop ejector array ejects drops of anti-curl solution onto the portion of recording medium that is in the printing region; h) providing a delay time that is greater than 15 milliseconds after the second drop ejector ejects drops of anti-curl solution at a given location on the portion of recording medium; i) moving the carriage along a second carriage scan direction while the first drop ejector array ejects drops of ink in an image-wise fashion onto the given location of the portion of recording medium according to control by the controller to form a swath of image; and j) repeating steps f) through i) to form an image swath by swath on the recording medium.05-24-2012
20110304665System And Method To Compensate For Defective Inkjets In An Inkjet Imaging Apparatus - A method comprises selecting a first and second datum stored in an array of image data and corresponding to a first and second defective inkjet ejector, the second defective inkjet ejector being within a search pattern positioned about the first datum, modifying the search pattern positioned about the first datum in response to detection of the second datum being within the search pattern positioned about the first datum, identifying a third datum stored in the array of image data and being within the modified search pattern positioned about the first datum, the third datum corresponding to a first functional inkjet ejector, modifying the third datum with reference to the first datum, and operating the first functional inkjet ejector with reference to the modified third datum to compensate for the first defective inkjet ejector being unable to eject ink corresponding to the first datum.12-15-2011
20110050776RECORDING APPARATUS AND METHOD FOR CONTROLLING RECORDING APPARATUS - A recording apparatus for discharging ink from a recording head arraying a plurality of nozzles to execute recording of an image includes a drive unit configured to form a group with a defined number of nozzles so as to include an adjacent nozzle in a different block and to execute time-division driving of the block according to a driving order corresponding to a recording mode, and a recording control unit configured to execute scan recording to a recording medium in a first recording mode or a second recording mode. Each pass of scan recording in the second recording mode is executed using nozzles smaller in number than a number of nozzles used to execute each pass of scan recording in the first recording mode. The recording apparatus further includes a driving control unit configured to control the drive unit wherein a drive interval of an adjacent nozzle in the same group corresponding to the first recording mode is larger than a drive interval of an adjacent nozzle in the same group corresponding to the second recording mode.03-03-2011
20110050775Liquid Ejecting Apparatus And Ejection Inspecting Method - A liquid ejecting apparatus including: (A) a nozzle that ejects a liquid; (B) a sensor that outputs a signal in accordance with a temperature change of the liquid; (C) a driving signal generation section that generates a driving signal for ejecting the liquid from the nozzle; (D) an inspection section that ejects the liquid of a first electrical potential; and (E) a controller that corrects the driving signal that is generated at the driving signal generation section in accordance with the liquid temperature.03-03-2011
20110050774Liquid Ejecting Apparatus and Liquid Ejecting Method - A liquid ejecting apparatus includes a head that ejects liquid onto a medium; a head-moving unit that moves the head in a moving direction; a temperature-acquiring unit that acquires a temperature relating to the head; and a control unit that controls the head and the head-moving unit. The control unit corrects an ejection timing of the liquid and causes the head to eject the liquid during forward scanning and backward scanning in the moving direction if the temperature acquired by the temperature-acquiring unit is within a predetermined range. The control unit causes the head to eject the liquid during one of the forward scanning and the backward scanning in the moving direction if the temperature acquired by the temperature-acquiring unit is outside the predetermined range.03-03-2011
20110050773PRINTING APPARATUS AND PRINTING METHOD - The present invention provides a printing apparatus and a printing method in which the frequency of an operation of detecting an inappropriate ejection state of each ejection port is increased, while allowing a decrease in throughput to be suppressed. The printing apparatus includes first ejection state sensing means for carrying out a first ejection state sensing process in which an ejection state sensing process of determining whether or not ejected droplets are normal is executed, during a single process, on all the ejection ports formed in the print head. The printing apparatus further includes second ejection state sensing means for carrying out a second ejection state sensing process in which the ejection state sensing process is executed on the ejection ports in a part of a plurality of ejection port groups into which the plurality of ejection ports formed in the print head are divided.03-03-2011
20110050772PRINTING APPARATUS USING PLURAL COLOR INKS INCLUDING WHITE COLOR INK AND PRINTING METHOD THEREOF - A printing apparatus, which prints on a transparent printing medium with a back surface to which a white protective layer is detachably attached by using a plurality of color inks including a white color ink, includes a head having a nozzle group which ejects ink, a control unit which forms an image on the transparent printing medium by controlling the head, and a color measuring unit which measures color of the image formed on the transparent printing medium in a state in which the protective layer is attached to the transparent printing medium, in which the control unit controls the head such that a black image is formed on the transparent printing medium and a white image is formed on the formed black image in an overlapping manner in the case in which an object to be color-measured is a white image containing an image of a toned-white color which is an adjusted white color.03-03-2011
20110050771AUTOMATIC SCAN AND MARK APPARATUS - An automatic scan and mark apparatus has a machine tool, a location detection module, a laser detector, an ink jet and a control computer. The machine tool has a movable module and a stage. The stage mounts and holds a specimen having a scraped surface. The control computer controls the location detection module to determine a position of the movable module, controls the laser detector to detect a surface morphology of the scraped surface in a measurement range, and activates the ink jet to eject inks on high points of the scraped surface of the specimen. Thus, the surface morphology is built automatically and high points are screened out and marked by colored ink. Manufacturer may easily redo scraping of determined high points based on the marked location on the specimen without burdensome measurement.03-03-2011
20090079776METHOD FOR REDUCING A STRIKETHROUGH EFFECT IN INKJET PRINTING ON THIN SUBSTRATES - A method for reducing the strikethrough effect in inkjet printing on thin substrates is disclosed. The method includes determining a normal print quality; determining a normal quantity of ink which would be used for inkjet printing of a certain print image on a strikethrough-resistant substrate, based on the normal print quality; determining a minimal print quality for the print image to be printed; determining a maximal value for the strikethrough effect; reducing the normal quantity of ink to a reduced quantity of ink, so that the print image has at least the minimal print quality and the maximal value of the strikethrough effect is not exceeded.03-26-2009
20110109678TWO-DIMENSIONAL ABSOLUTE POSITION SENSOR AND PROJECTION CONTROL FOR A HANDHELD PRINTER - A handheld portable printer includes members and a handle that are joined together to form a generally O-shaped device. The members provide a rigid and strong structure and an area for housing a projector to project an image on the print surface of the image to be printed. The bottom member houses a pair of absolute position sensors spaced apart and aligned upon the longitudinal axis on the bottom of the handheld portable printer. A controller is associated with the absolute position sensors to produce precise position information. The controller uses the precise position information to control the projection of the image to be printed and the printing of pixels by the print head. In one embodiment, the print head is controlled such that each pixel is printed at least twice. The present invention also includes a number of novel methods including: a method for printing an image with a handheld printer, a method for projecting an image to be printed, and a method for registering a location of a printer and portions of a printed image.05-12-2011
20100053248LIQUID EJECTING APPARATUS AND NOZZLE CHECK PATTERN FORMING METHOD - A liquid ejecting apparatus is provided, which includes: a head that ejects a first liquid and a second liquid having colors different from each other on a medium from a first nozzle and a second nozzle; and a control section that forms a nozzle check pattern constituted by the first liquid for checking poor liquid ejection from the first nozzle by landing the second liquid ejected from the second nozzle on the medium, and then landing the first liquid ejected from the first nozzle on the second liquid.03-04-2010
20100123750PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus includes a print head that has a plurality of nozzles including lower-end portion nozzles, center-portion nozzles, and upper-end portion nozzles, a medium transport unit that transports a medium that becomes a printing target, an edge detecting unit that detects an edge included in image data, and a print control unit that forms a pixel pattern on the medium by driving the print head together with relatively moving the print head and the medium that becomes the printing target, forms an overlapping pixel pattern on the medium by using nozzles, the number of which is a first number in a case where the edge is not detected by the edge detecting unit for the overlapping pixel pattern that can be formed by the upper-end portion nozzle and the lower-portion nozzle, and forms the overlapping pixel pattern on the medium by using nozzles, the number of which is a second number smaller than the first number in a case where the edge is detected by the edge detecting unit.05-20-2010
20110316920EJECTION CHARACTERISTICS EVALUATION APPARATUS AND EJECTION CHARACTERISTICS EVALUATION METHOD FOR INKJET PRINTING APPARATUS, AND INKJET PRINTING APPARATUS - The present invention prints a plurality of ejection characteristics detection patterns with different print duties. Each of the patterns is divided into areas with a certain number of pixels, and each area is read with a plurality of different read colors. Based on the read values by the read color for each area, evaluation values by the read color that indicates ejection variation volume that is the difference between ink ejection volume to each area and standard ink ejection volume are set. A weighted average is obtained by applying the weight determined by reading accuracy of a reading unit to evaluation values by color for each area with different print duties formed by the same nozzle. The ejection characteristics of a nozzle that prints each of the areas are evaluated using the weighted average value.12-29-2011
20110316919FIRST DROP DISSIMILARITY IN DROP-ON-DEMAND INKJET DEVICES AND METHODS FOR ITS CORRECTION - A number of methods may be utilized to correct for the first drop dissimilarity in drop-on-demand inkjet devices. Various collection processes, mass calculations and timing manipulation may be utilized to correct the first drop dissimilarity problem.12-29-2011
20090322815INK JETTING - Among other things, for use in ink jetting, a method includes reducing an anticipated variation in a characteristic of ink drops being jetted from an ink jet assembly, the reducing comprising causing a voltage that is applied on a jetting assembly to respond to the anticipated variation.12-31-2009
20110157269LIQUID DISCHARGING APPARATUS AND LIQUID DISCHARGING METHOD - An apparatus includes a mechanism that transports a medium in a transportation direction; nozzle lines each composed of nozzles aligned in the transportation direction, the nozzle lines arranged adjacent to one another in a movement direction orthogonal to the transportation direction; a mechanism that moves the nozzle lines in the movement direction; and a controller for repeating operation of discharging liquid from each nozzle line being moved bi-directionally during outward and homeward movement and operation of transporting the medium in a period between the outward and homeward discharging operation by transportation amount corresponding to nozzle-line length. When a line is printed along the transportation direction using a certain nozzle line in a certain liquid discharging operation, timing of discharging the liquid therefrom is corrected in accordance with duty of printing performed using another, other, or the other nozzle line(s) located downstream of the certain nozzle line in the movement direction.06-30-2011
20120044292Vacuum Control For Print Head of A Printing System - According to an aspect of the disclosed subject matter, a controller to maintain negative pressure in a print head of a printing system includes: control loop feedback logic to receive a set point and an output of a vacuum sensor associated with the print head; a regulator coupled with an output of the feedback logic; and a driver coupled with the regulator and configured to output a drive signal to a pump, which is associated with the print head, responsive to an output of the regulator. According to another aspect of the disclosed subject matter, a vacuum control assembly for a printing system includes: a body having one or more associated accumulators; a pump coupled with the body; and one or more flexible tubes coupled with the one or more accumulators associated with the body and configured to restrict air flow within the vacuum control assembly.02-23-2012
20120062635INK JET PRINTING SYSTEMS - We describe a method of generating data for driving an ink jet print head having a plurality of nozzles to print a portion of an image comprising a plurality of pixels, the method comprising: storing nozzle position data defining spatial positions of said nozzles with respect to said print head in terms of pixel offsets from a reference position on said print head; reading image data for said image, said image data comprising data for said plurality of pixels; inputting head position data defining a position for said print head; and processing said image data using said head position data and said nozzle position data to determine nozzle firing data for controlling said print head to deposit ink at said spatial positions of said nozzles with respect said head position in accordance with said image data.03-15-2012
20120001974PRINTING DEVICE AND PRINTING METHOD - A printing device characterized by comprising a speed-acquiring section that acquires a creation speed when operational data is to be created by data conversion section on the basis of print data, wherein in a case where the creation speed acquired by the speed-acquiring section is lower than a prescribed speed, the speed at which printing section deposits printing matter onto a printing medium is made lower than in a case where the creation speed is higher than the prescribed speed.01-05-2012
20110096115INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - The present invention provides an ink jet printing apparatus and an ink jet printing method in which if an image is printed using ink and a process liquid serving to improve the printability of the ink, degradation of print image quality can be suppressed which results from a rise in the temperature of a print head. To achieve this, the present invention reduces the amount of process liquid ejected from a process liquid ejection section capable of ejecting a process liquid, with increasing temperature of an ink ejection section capable of ejecting ink.04-28-2011
20120206525FLUID-EJECTING DEVICE AND FLUID-EJECTING METHOD - To minimize any decrease in image quality, even in an instance in which there is a displacement in a landing position of a fluid in a region in which nozzle rows overlap, (A) a fluid-ejecting device including: a first nozzle column; (B) a second nozzle column, the second nozzle column being arranged so as to form an overlapping region; and (C) a control part for causing the fluid to be ejected so that in each of a plurality of raster lines arranged in a row in the predetermined direction in the overlapping region, dots to be formed are apportioned between the first nozzles and the second nozzles; the control part causing the fluid to be ejected so that there are produced.08-16-2012
20120206524INKJET PRINTING APPARATUS AND PRINT HEAD RECOVERY METHOD - An inkjet printing apparatus and a print head recovery method are provided according to which, in an environment in which dust (e.g., paper dust) is easily attached to the periphery of an ejection port of a print head, the print head is subjected to a recovery operation depending on the level of the attached dust. The inkjet printing apparatus has a cutter unit for cutting a print medium and a recovery unit for performing the recovery operation by wiping the ejection port formation portion at which the ejection port is formed of the print head while sucking the ejection port formation portion. When the passing number showing how many times the cut part of the print medium cut by the cutter passes the printing position is equal to or higher than a threshold value, the recovery means subjects the print head to the recovery operation.08-16-2012
20120007906LIQUID EJECTING APPARATUS AND CONTROL METHOD - A liquid ejecting apparatus includes: a liquid ejecting head that includes nozzle openings through which liquid is ejected and pressure generation units that cause changes in pressure of the liquid inside pressure generation chambers communicating with the nozzle openings; a control unit that supplies a driving signal for causing the liquid ejecting head to eject the liquid, to the pressure generation units, and controls ejection of the liquid by the liquid ejecting head; and a temperature detection unit that detects a temperature of a contact portion with which the liquid ejected by the liquid ejecting head comes in contact, wherein the control unit corrects the driving signal on the basis of the temperature information detected by the temperature detection unit.01-12-2012
20120007905MAINTAINING OPTICAL DENSITY OF IMAGES PRODUCED BY A PRINTING DEVICE - A method for maintaining the optical density of a printing device includes, with a printhead module of the printing device, printing a color region onto a first test page, the color region comprising a plurality of sub-regions, each of the sub-regions being printed with a different drive voltage; measuring an optical density of each of the sub-regions printed onto the first test page; determining a response curve based on a relationship between the optical density of the sub-regions and the different drive voltages used to print the sub-regions; and, using the response curve, determining a target drive voltage for the printhead module which will cause the printhead module to print at a target optical density.01-12-2012
20100026749RECORDING DEVICE, METHOD FOR CONTROLLING RECORDING DEVICE, AND OPERATION CONTROL PROGRAM - A recording device forming a printed image by discharging droplets of an image forming solution from a nozzle and attaching the droplets on recording media, which includes a recording head provided with a specific nozzle which is selectively filled with the image forming solution and a solution preventing the nozzle from being clogged, and a controller that controls the performance of switching from a first filled state in which the specific nozzle is filled with the image forming solution to a second filled state in which the specific nozzle is filled with the solution preventing the nozzle from clogging in accordance with a predetermined condition.02-04-2010
20120062634INKJET PRINTING DEVICE AND METHOD FOR PRINTING MULTI-COLORED IMAGES - An ink jet printing device (03-15-2012
20090167800INKJET RECORDING APPARATUS, IMAGE FORMING SYSTEM, AND COMPUTER-READABLE ENCODING MEDIUM RECORDED WITH A COMPUTER PROGRAM THEREOF - An inkjet recording apparatus is disclosed, including: a jaggy correction process part for recording a dot for the jaggy correction at a border portion of an image. A droplet amount of each of color inks forming the dot for the jaggy correction using the color inks is selectively determined to be less than a droplet amount of an ink forming a dot for the jaggy correction using the black color.07-02-2009
20120013663System And Method For Modifying Operation Of An Inkjet Printer To Accommodate Changing Environmental Conditions - An inkjet printer operates to produce a print with at least one component operating at less than a normal operating parameter. The printer identifies an image density for an image to be printed and operates the printer with operational parameters different than normal operational parameters to enable printing operations before all of the components in the printer reach their operational parameters.01-19-2012
20120013664INKJET PRINTER AND INKJET PRINTING METHOD - The present invention relates to an inkjet printer that prints an image by a forward scan and a backward scan of printing heads. In the present invention, it is determined whether or not a color unevenness occurrence value set on the basis of values of unit image data constituting image data is more than a predetermined threshold value. If the color unevenness occurrence value is less than the threshold value, data that enable a dot to be formed in a unit area corresponding to the unit image data by the forward scan and the backward scan of the printing heads are generated. If the color unevenness occurrence value is more than the threshold value, data that enable a dot to be formed in the unit area only by any one of the forward scan and the backward scan by the printing heads are generated.01-19-2012
20120056926IMAGE FORMING APPARATUS AND PROGRAM - An image forming apparatus which includes a head for discharging colored radiation curable ink and colorless radiation curable ink that are cured upon irradiation with electromagnetic waves onto a medium, and a controller for causing dots of the colored radiation curable ink and dots of the colorless radiation curable ink to be densely arranged.03-08-2012
20120154468INKJET PRINTING DEVICE AND INKJET PRINTING METHOD - An inkjet printing device having a print head that ejects a plurality of types of inks has: an ejection unit configured to, on the basis of ejection data that scans the print head a plurality of times to eject the inks from the print head to a predetermined area of a print medium, eject the inks to print an image; wherein the inks are classified into a first ink having a relatively large contact angle and a second ink having a relatively small contact angle, and wherein the ejection data is ejection data that, if a difference in application amount between the first ink and the second ink to be ejected to the predetermined area by the ejection unit is larger than a predetermined value, increases a ratio at which an ink having a smaller application amount is ejected in last half scans among the plurality of times of scans.06-21-2012
20090219320Liquid Droplet Jetting Apparatus - A damper control section controls a piezoelectric actuator attached to a damper, in a printing mode of jetting an ink by a pressure applied by an actuator for jetting, to suppress a pressure fluctuation in an ink storage chamber, and controls the piezoelectric actuator, in a purge mode of discharging forcibly the ink in the ink-jet head as a waste liquid, to transport the ink in the ink storage chamber to the ink-jet head.09-03-2009
20120154469INKJET RECORDING APPARATUS AND INKJET RECORDING METHOD - An inkjet recording apparatus recording image data by causing a recording head to scan in the going-and-returning directions of a certain direction includes a record unit that finishes recording with a first scan involving a discharge of ink and a second scan involving the ink discharge in the returning direction, to first and second regions in the going direction, and that varies the number of scanning which does not involve the ink discharge between the first and second regions, a generation unit generating record data specifying the ink discharge or the ink non-discharge for each pixel region of the first and second regions, and a determination unit determining the going-direction recording ratio and the returning-direction recording ratio in the pixel regions, wherein the generation unit generates the record data based on the determined going-direction recording ratio and returning-direction recording ratio.06-21-2012
20100238219IMAGE DATA EXPANSION BY PRINT MASK - A method for using a processor to process image data received from an image data source in preparation for multipass printing, comprising multitoning the image data to produce a multitoned image, using the multitone level of a pixel in the multitoned image to select a plane of a print mask, using the location of the pixel in the multitoned image to select a cell of output pixels in the selected plane of the print mask, and copying the selected cell of output pixels to corresponding locations within a print buffer.09-23-2010
20120026230INKJET PRINTING APPARATUS - This invention prevents a possible color mixing, that may occur more than a predetermined time after the wiping operation, by executing a pre-printing cleaning ejection while at the same time minimizing the amount of waste ink produced by the cleaning ejection. To this end, if a color mixing is determined as being likely to occur an elapsed time after the previous wiping operation, the pre-printing cleaning ejection uses a second ink volume U, which represents both the color mixing elimination ink volume and the ejection failure elimination ink volume. If it is decided that there is no likelihood of the color mixing occurring the elapsed time after the wiping operation, the pre-printing cleaning ejection uses the first ink volume D which represents only the ejection failure elimination ink volume.02-02-2012
20120026229INKJET PRINTING APPARATUS - To provide an inkjet printing apparatus that suppresses occurrence of image deterioration, such as a texture, a moire, and a streak in a printing result. In order for this to be achieved, a level is set up to a overlapping portion of a chip of a print head depending on dot impact accuracy, and a print data distribution rate of each chip in the overlapping portion is determined according to the level.02-02-2012
20090021548INKJET PRINTING APPARATUS AND METHOD FOR PERFORMING MAINTENANCE ON INKJET PRINTING APPARATUS - An inkjet printing apparatus, a maintenance method and an inkjet printing system which are capable of precisely calculating the amount of satellites or ink mist generated and replacing a collecting mechanism at most appropriate time. The inkjet printing apparatus has a wind-powered collecting mechanism collecting generated sub-droplets such as satellites or ink mist, and head temperature sensors for obtaining temperature information of the print head. The CPU calculates the amount of sub-droplets generated on the basis of printing conditions including the detected temperature information of the print head. The CPU determines whether the replacement of the wind-powered collecting mechanism is necessary on the basis of the calculated amount of sub-droplets generated.01-22-2009
20120154470Image forming apparatus, control method thereof, and computer readable information recording medium - An image forming apparatus includes an image forming part configured to form images on both sides of a recording medium based on image data using developers; a storing part configured to store developer using amount information for obtaining using amounts of the developers not causing bleed-through of the developers when the image forming part forms the images on both sides of the recording medium, the developer using amount information including plural items of developer using amount information separately set for respective colors of the image data; and a control part configured to cause the image forming part to use the developers and reduce using amounts of the developers when determining, based on the plural items of developer using amount information separately set for respective colors of the image data, to reduce the using amounts of the developers.06-21-2012
20120120140LIQUID EJECTING APPARATUS AND MAINTENANCE METHOD - A movable member configured to move when a liquid ejecting apparatus is inclined from a posture to be taken when ejecting liquid upon receipt of an action of the gravitational force and a memory unit configured to store the fact that the movable member is moved in response to abutment with the moved movable member are provided and the presence or absence of the movement of the movable member is acquired after the power has been turned ON. Accordingly, a change of the posture of the liquid ejecting apparatus in a power OFF state can be determined after the fact after the power has been turned ON.05-17-2012
20110090276IMAGE PROCESSING METHOD, IMAGE PROCESSING APPARATUS, IMAGE FORMING APPARATUS, IMAGE FORMING SYSTEM, AND STORAGE MEDIUM - An image processing method includes converting multilevel data of an image into a dot pattern using a multilevel error diffusion process. The conversion includes determining a pixel corresponding to an abnormal nozzle based on abnormal nozzle information provided for each of droplet sizes supported by nozzles of an image forming apparatus; preventing jetting of a droplet onto the determined pixel; distributing a quantization error of the determined pixel calculated in the multilevel error diffusion process to neighboring pixels; and if extra-large droplets with a droplet size greater than the droplet size of a full-size droplet capable of filling a pixel are to be formed in the neighboring pixels as a result of distributing the quantization error, removing one or more of the extra-large droplets or reducing the droplet size of one or more of the extra-large droplets.04-21-2011
20110090275LIGHT SCATTERING DROP DETECT DEVICE WITH VOLUME DETERMINATION AND METHOD - One aspect is a drop detection arrangement including a light source for projecting a light beam for scattering light off of an ejected drop. The arrangement includes a light collector configured to collect the scattered light off the ejected drop and configured to process scattered light into an output signal. The arrangement includes a controller configured to receive the output signal from the light collector, to calculate the velocity of the ejected drop and to determine the volume of the ejected drop using the output signal and the velocity of the ejected drop.04-21-2011
20110102487Capacitive Drop Mass Measurement System - An imaging device includes an image receiving surface movably supported within the imaging device and at least one printhead having a plurality of ink jets, each ink jet being configured to eject drops of ink on the image receiving surface. At least one sensing electrode is positioned adjacent the image receiving surface that outputs capacitance signals indicative of a capacitance in a gap between the at least one sensing electrode and image receiving surface that are output to a controller. The imaging device includes a drop mass detection mode of operation in which: at least one ink jet in the plurality of ink jets is actuated to eject drops of ink to form at least one test band on the image receiving surface; the image receiving surface is moved so that the at least one test band of ink is positioned in the gap; the at least one sensing electrode outputs a test band capacitance signal indicative of a capacitance with the at least one test band in the gap; and the controller modifies an operating parameter of the imaging device based on the capacitance indicated by the test band capacitance signal.05-05-2011
20100245441FLUID EJECTING APPARATUS AND METHOD OF CORRECTING PIXEL DATA - A fluid ejecting apparatus and a method for correcting pixel data are disclosed. The fluid ejecting apparatus includes a nozzle line having nozzles which eject fluid onto a medium and are lined up in a predetermined direction; a moving mechanism relatively moving the nozzle line and the medium in a direction intersecting the predetermined direction; and a control unit that ejects the fluid from the nozzle line while relatively moving the nozzle line and the medium in the intersecting direction by using the moving mechanism, based on pixel data of the predetermined number of gradations according to certain kinds of dots which can be formed by the fluid ejected from the nozzles, the control unit correcting the pixel data of the predetermined number of gradations in accordance with the correction value set for every image line data which is the plurality of pixel data lined up in a direction corresponding to the intersecting direction in the pixel data.09-30-2010
20100245442METHOD FOR DETECTING DEFECTIVE LIQUID EJECTION, AND DEFECTIVE LIQUID EJECTION DETECTION DEVICE - A method for detecting a defective liquid ejection that includes a) reading, by means of a sensor, an image which is formed on a medium by nozzles ejecting a fluid onto the medium in accordance with image data while being moved relative to the medium in a relative movement direction, b) obtaining differences between pixel values of read data pixels continuously arranged in a row in a direction intersecting with the relative movement direction in data read by the sensor and pixel values of image data pixels corresponding to the read data pixels, and c) detecting a defective liquid ejection of the nozzle by comparing a maximum difference value at a point where the differences show a maximum value with a non-maximum difference value at a time when the differences do not show a maximum value.09-30-2010
20100245443PRINTING - A method of printing comprising firing a first group of one or more printheads (09-30-2010
20100245437LIQUID DISCHARGE APPARATUS - A liquid discharge apparatus which discharges a liquid in each of continuing discharge opportunities includes: a discharge head discharging the liquid from nozzles; a controller controlling the discharge head to discharge the liquid from the nozzles; a duty detecting section detecting a value of a duty which is a ratio of a discharge amount of the liquid discharged from the discharge head with respect to a maximum discharge amount of the liquid to be discharged from the discharge head in each of the discharge opportunities; and a wait time determining section determining whether a wait time, in which the liquid is not discharged, is provided after each of the discharge opportunities, based on the values of the duties detected by the duty detecting section in past continuing discharge opportunities including the last discharge opportunity.09-30-2010
20100245440PRINTING APPARATUS - Provided is a printing apparatus for printing an image on a medium, which is transported in a transport direction, by forming dots by ejecting ink from a plurality of nozzles while moving the nozzles in an intersecting direction that intersects the transport direction. The printing apparatus has a first printing mode for printing a mirror image of a predetermined image as the image on the medium and a second printing mode for printing a positive image of a predetermined image as the image on the medium, the medium being a transparent medium. The first printing mode is different from the second printing mode in at least one of a transportation operation of transporting the medium and a dot-forming operation of forming the dots by ejecting ink while moving the nozzles.09-30-2010
20100245439PRINT CONTROLLER - An inkjet head has a plurality of nozzles that are arranged such that distances in a first direction between respective two adjacent nozzles that are adjacent with each other in the first direction are uniform and distances in a second direction orthogonal to the first direction between the respective two adjacent nozzles are nonuniform. The storing unit stores a plurality of dot size determining values corresponding to the plurality of nozzles. Each dot size determining value is defined to determine a size of a dot to be formed by the corresponding nozzle and is determined dependently on a distance in the second direction between the corresponding nozzle and a nozzle adjacent to the corresponding nozzle in the first direction. The determining unit determines a size of a dot to be formed by each nozzle based on the pixel data and the corresponding dot size determining value.09-30-2010
20100245436INK-JET PRINTER - An ink-jet printer has an ink-jet head which discharges an ink from nozzles, and an ink supply passage through which the ink is supplied to the ink-jet head. The ink-jet head and the ink supply passage are filled with an initial ink, which is of a same type as that of the ink to be discharged from the nozzles, upon shipping of the ink-jet printer. The ink-jet printer includes a purge mechanism which executes a purge process to forcibly discharge the ink in the ink-jet head and the ink supply passage from the nozzles; an input section which accepts an input from a user; an initial ink detecting section which detects whether or not the initial ink remains in the ink-jet head and the ink supply passage; and a controller which controls the purge mechanism and the input section based on a detecting result of the initial ink detecting section.09-30-2010
20100245438RECORDING APPARATUS, METHOD OF CONTROLLING RECORDING APPARATUS AND COMPUTER READABLE RECORDING MEDIUM - Flushing data include pixels that are flushing dot candidates in a virtual area where a plurality of pixels are arranged in a matrix. One or less pixel is arranged in a plurality of rows of pixels arranged in lines extending in the main scan direction and the direction of conveyance of a sheet and third and fourth directions that are orthogonal to each other and that cross each other at an angle of 45°. A head control section controls an inkjet head such that image dots and flushing dots corresponding to flushing dot candidates that pertain to flushing data and that are situated at locations where no image dots are generated, are produced on a sheet.09-30-2010
20100245432Inkjet Recording Apparatus - An inkjet recording apparatus includes at least one inkjet head having an ejection surface, a feeding mechanism which includes a feed member having a feed surface that is opposed to the ejection surface and which drives the feed member to feed a recording medium on the feed surface in a feeding direction, a wiper blade which removes ink that is adhered to the feed surface by contacting the feed surface, a judging portion which judges whether cleaning of the feed surface is necessary, and a controller which controls the at least one inkjet head and the feeding mechanism, in a case where the judging portion judges that the cleaning of the feed surface is necessary, to perform a first operation in which ink is ejected to the feed surface and a second operation in which the feed member is driven.09-30-2010
20100245433IMAGE RECORDING APPARATUS - An image recording apparatus including: a head having openings; a sheet-moving mechanism; a drive-data storage portion storing drive data; a converting section which converts the drive data such that an image position adjustment is changed; a first extracting section which extracts at least one opening whose number of ejections during the recording on at least one sheet of a first number based on unconverted drive data is smaller than a second number; a second extracting section which extracts at least one opening whose number of ejections during the recording on at least one sheet of a third number based on converted drive data is smaller than a fourth number; and a controller which controls the ejection such that a preliminary ejection from at least one opening extracted by the first and second extracting sections is performed upon recordings based on the unconverted drive data and the converted drive data.09-30-2010
20100245435LIQUID DISCHARGING APPRATUS - There is provided a liquid discharging apparatus including: a liquid discharging head; a cartridge attaching section in which a liquid cartridge is loaded detachably; a liquid channel; a filter provided in the middle of the liquid channel to capture a foreign substance in the liquid; a parameter deciding mechanism which, based on a cumulative use number of the liquid cartridge, decides a value of a predetermined parameter whose value becomes larger as the cumulative use number becomes larger; and a controller controlling the liquid discharging head so as to decrease an amount of the liquid discharged from the liquid discharging head per unit time as the value of the parameter becomes larger. This structure prevents the occurrence of a failure of the discharge of the liquid from nozzles.09-30-2010
20100245431 METHOD AND APPARATUS FOR REVERSE PRINTING ON A FLEXIBLE LENTICULAR SUBSTRATE - There is provided a method and apparatus for reverse printing a plurality of images interlaced with each other on an underside surface of an appropriate flexible lenticular substrate. The method includes analyzing a viewing orientation of either portrait configuration or landscape configuration of at least one of the plurality of images; determining whether the appropriate flexible lenticular substrate is used for the printing of the plurality of images interlaced with each other in accordance with the viewing orientation of one of the plurality of images; analyzing an orientation of a first marker on the underside surface of the appropriate flexible lenticular substrate; and printing the plurality of images interlaced with each other in accordance with the orientation of the first marker on the underside of the appropriate flexible lenticular substrate. It is advantageous that the printed plurality of images interlaced with each other, when viewed through a top surface of the appropriate flexible lenticular substrate, appear to have characteristics selected from the group consisting of: depth, morphing characteristics, can appear to have motion, and the capability to alternate from one image to another.09-30-2010
20100245434RECORDING APPARATUS - A conveyance unit continually conveys sheets of the number of continual prints. A head control section controls ejection of ink droplets from inkjet heads in such a way that there are produced image dots which make up an image to be printed on each of the sheet every time the sheet is conveyed and flushing dots corresponding to flushing dot candidates, among flushing dot candidates for flushing patterns included in a flushing pattern group determined from the continual print count, which are placed at locations where the image dots are not to be produced.09-30-2010
20120299990PRINTING CONTROL METHOD AND PRINTING APPARATUS - For each of a plurality of areas in at least one of a sheet width direction and a sheet conveying direction included in a sheet trailing edge area during printing on a first surface, information regarding an ink application amount to the area is acquired. According to a combination of acquired pieces of information regarding the ink application amounts to the plurality of areas, waiting time until a printing start on a second surface from an end of printing in the sheet trailing edge area is determined.11-29-2012
20120162298MULTIPLE ITERATION SUBSTRATE PRINTING - A system and a method for printing a desired pattern on a substrate, the method may include: receiving or generating printing instructions for printing multiple patterns during multiple printing iterations, wherein at least two different printing iterations are expected to be executed by different sets of nozzles of an array of nozzles, wherein a superposition of the multiple patterns is expected to differ from the desired pattern by a tolerable difference even when a nozzle of the array of nozzles malfunctions; and printing the multiple patterns during multiple during multiple printing iterations, wherein at least two different printing iterations are expected to be executed by different sets of nozzles of the array of nozzles.06-28-2012
20100207984PRINT HEAD CHECK METHOD AND IMAGE FORMING APPARATUS - A printer has a print head check unit that performs an ink ejection check to confirm whether or not ink is being ejected normally from nozzles, based on induced voltage generated when charged ink droplets are ejected onto a check area. Upon receipt of a print instruction (S08-19-2010
20100207982IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - An image forming method includes discharging a droplet of a recording fluid via nozzles of a recording head onto a print medium; performing a main scan in which the print medium is scanned in a main scan direction; performing a sub-scan in which the print medium is scanned in a sub-scan direction; determining an overlap region in an image region that is formed by a single main scan; and performing an overlap control by forming an image in the overlap region through a plurality of main scans while the print medium is moved in the sub-scan direction by a feed amount L, wherein L=(n−x)d−md, where n is a number of the nozzles in the recording head; x is a number of the nozzles in the overlap region; d is a nozzle pitch; and m is a feed correcting coefficient (0≦m≦1).08-19-2010
20100207981LIQUID EJECTING APPARATUS AND LIQUID EJECTING METHOD - A liquid ejecting apparatus includes a liquid ejecting head that ejects liquid from a nozzle. A head movement section moves the liquid ejecting head in a movement direction. A controller controls a movement ejection operation that ejects the liquid from the nozzle while moving the liquid ejecting head in the movement direction. If there is satisfied a decision condition that indicates that the ejection rate is excessive, the controller causes the number movement ejection operations related to a certain range to be larger than if the decision condition were not satisfied. With respect to second liquid being higher in viscosity than first liquid, the controller determines the number movement ejection operations related to the above-mentioned certain range by the above-mentioned decision condition determined as excess of the above-mentioned ejection rate at an ejection rate being smaller than that of the first liquid.08-19-2010
20100207985PRINTING POSITION ADJUSTING METHOD AND PRINTING SYSTEM - The present invention relates to a printing position adjusting method capable of performing dot adjustment value acquisition processing that can accommodate diversified user needs of recent years, and a printing system capable of achieving the adjusting method. The printing position adjusting method according to the present invention provides a plurality of types of dot adjustment value acquisition processing capable of acquiring an adjustment value for matching printing positions, and enables selection of a single appropriate dot adjustment value acquisition processing type among the plurality of types of dot adjustment value acquisition processing according to the type of the print medium to be used. Consequently, a user will be able to suitably execute dot adjustment value acquisition processing with high accuracy in correspondence with the desired high level of quality.08-19-2010
20110181647Method for Measuring a Gap Between an Intermediate Imaging Member and a Print Head Using Thermal Characteristics - A method uses temperature measurements for a print head and an imaging member to identify a distance between a print head and an imaging member. The method determines whether the print head at the print position is too close to the imaging member to identify the gap distance without damage to the print head. Then, if the print head is not too close, the print head is heated to quantify the heat sink effect of the imaging member on the print head. This effect is related to a heat transfer function that identifies the gap distance between the imaging member and the print head.07-28-2011
20110181645RECORDING APPARATUS - A recording apparatus includes a first acquisition unit configured to acquire a speed of ink discharged from a recording head, a second acquisition unit configured to acquire information relating to a speed change based on the speed acquired by the first acquisition unit and a reference speed; a setting unit configured to set driving information relating to the recording head based on the information relating to the speed change acquired by the second acquisition unit, and a drive unit configured to drive the recording head based on the driving information set by the setting unit.07-28-2011
20110181646PRINTED MATTER, METHOD FOR RECORDING COLOR IMAGES, COLOR PRINTED MATTER, LOOK-UP TABLE FOR USE IN COLOR IMAGE RECORDING, AND WHITE INK - Printed matter, in which an image is recorded on a clear film with a white ink containing a white coloring material and at least one urethane resin as a resin fixative and having a degree of white shielding of 50 or more.07-28-2011
20120212533PRINTING APPARATUS AND CONTROL METHOD FOR THE SAME - A printing apparatus includes a first control unit that controls execution of a first temperature adjusting operation in which heating is performed in a region in which all of orifices are arranged; a second control unit that controls execution of a second temperature adjusting operation in which, compared to a predetermined region in which a predetermined number of orifices from respective ends in an orifice arrangement direction are arranged in the orifice arrangement direction, heating is performed with a lower extent of heating in a region in which the orifices outside the predetermined region are arranged; and a temperature adjusting control unit that controls execution of a multi-stage temperature adjusting operation performed on a printhead that includes the first temperature adjusting operation and the second temperature adjusting operation by controlling the first control unit and the second control unit before printing starts.08-23-2012
20120133695INKJET RECORDING APPARATUS - An inkjet recording apparatus is adapted to form an image on a printing medium 05-31-2012
20120133696INKJET RECORDING APPARATUS AND DENSITY ADJUSTMENT METHOD THEREOF - An adjustment drop number setting section 05-31-2012
20120133697RECORDING APPARATUS AND METHOD FOR RECORDING IMAGE - A recording apparatus is provided, including a recording head, a transport mechanism which has an adjusting mechanism configured to adjust a spacing distance between recording media upstream from the recording head, a discharge control unit configured to control the recording head so that a liquid is discharged when discharge ports face the recording medium and configured to control the recording head so that at least one of discharge flushing and non-discharge flushing is performed when the discharge ports are positioned between the two recording media, and a measuring mechanism which is arranged upstream from the recording head to measure the spacing distance between the recording media. The adjusting mechanism is configured to adjust the next spacing distance between the recording media depending on the spacing distance between the recording media measured by the measuring mechanism.05-31-2012
20120133694LIQUID DISCHARGE APPARATUS AND LIQUID DISCHARGE METHOD - A liquid discharge apparatus includes: movable head having a nozzle line with nozzles arranged in a predetermined direction; and a control unit that performs a first liquid discharge process and a second liquid discharge process, which sequentially form dots on a medium by intermittently discharging liquid from the nozzles while moving the head and maintaining the inclusion of a normal component perpendicular to the predetermined direction in the moving direction of the head and which form dots on the medium such that a dot formation position in the perpendicular direction of the dots formed in the second liquid discharge process is positioned between dot formation positions in the perpendicular direction of the dots formed continuously in the first liquid discharge process.05-31-2012
20100194808IMAGE FORMING APPARATUS - The present image forming apparatus converts driving data in such a manner that when a volume of liquid to be ejected in an (m+1)-th print cycle following an m-th print cycle is a maximum volume of ink among a plurality of predetermined volumes of ink, a volume of liquid to be ejected in the m-th print cycle is any volume other than zero and the maximum volume among the predetermined volumes, in which m-th print cycle (m is an integer number no less than “0”) no ink is to be ejected08-05-2010
20120249642LIQUID DISCHARGE APPARATUS - There is provided a liquid discharge apparatus including a liquid discharge head having a plurality of nozzles; a common chamber; a liquid chamber; a liquid supply port; and a communication channel; and a discharge control mechanism which controls the liquid discharge head to perform a discharge operation of discharging the liquid from the nozzles to the medium. The discharge control mechanism controls the liquid discharge head to perform a flushing operation, as the discharge operation, so that the liquid is discharged from a first nozzle group in a discharge mode, which is different from a discharge mode of a second nozzle group, to generate a flow of the liquid in the communication channel.10-04-2012
20090058909PRINTHEAD MODULE HAVING OPERATION CONTROLLABLE ON BASIS OF THERMAL SENSORS - A printhead module having a plurality of nozzles for expelling ink is provided. The printhead module has a plurality of thermal sensors. Each thermal sensor is configured to respond to a temperature at or adjacent at least one of the nozzles. The printhead module is configured to modify operation of the nozzles in response to the temperature rising above a threshold. The printhead module is a thermal inkjet printhead module and each of the nozzles includes a thermal ink ejection mechanism. Each thermal sensor comprises at least part of one of the thermal inkjet mechanisms.03-05-2009
20090058907LIQUID EJECTING DEVICE - A liquid ejecting device including a liquid ejecting head for ejecting a liquid; a liquid supply channel to supply the liquid to the liquid ejecting head; a discharge channel connected to the liquid supply channel through a gas permeable film to discharge a gas in the liquid supply channel; a suction unit connected to the discharge channel and configured to suction a gas in the discharge channel to reduce a pressure therein; a switching unit configured to block the communication of the discharge channel with the suction unit when the gas in the discharge channel is not suctioned; and a discharge detecting unit configured to detect that the gas in the liquid supply channel is suctioned and discharged to the discharge channel by the reduced pressure in the discharge channel when the communication of the discharge channel with the suction unit is blocked by the switching unit.03-05-2009
20090058906ADJUSTING METHOD FOR USE IN RECORDING APPARATUS, RECORDING APPARATUS - This invention provides an adjusting method for use in a recording apparatus having a configuration where head units, in each of which a plurality of recording heads are arranged in a direction (main scanning direction) orthogonal to a moving direction (sub-scanning direction) of a recording medium relative to the recording heads so that ends of recordable regions of the recording heads partially overlap or contact when viewed in a conveyance direction of the recording medium, are arranged by a number equal to the number of recording colors in parallel in the sub-scanning direction, comprising adjusting quality of an image recorded on the recording medium by changing a positional relationship of a predetermined recording pattern, which is recorded on the recording medium with each of the recording heads, within each of the head units and/or among the plurality of head units.03-05-2009
20100060689PRINTING DEVICE AND PRINTING METHOD - Provided is a printing device including: a printing unit which has a plurality of nozzles for ejecting a liquid and printing an image; an inspection unit which inspects whether or not the liquid is able to be ejected from the nozzles; and a controller which divides each pixel of image data into a plurality of pixels, and allows the printing unit to perform printing if at least one of at least a predetermined number of nozzles corresponding to each pixel of the image data is able to eject the liquid in the inspected result of the inspection unit, when dots are formed using at least the predetermined number of nozzles with respect to the plurality of divided pixels.03-11-2010
20080211849Inkjet Device and Method for the Controlled Positioning of Droplets of a Substance Onto a Substrate - The invention provides a device for the controlled positioning of droplets of a substance onto a substrate, the device comprising at least a print head comprising a nozzle provided to eject the droplet, the inkjet device further comprising a control camera arranged such that after ejection of the droplet out of the nozzle, the droplet is detected by the control camera. In case either the droplet volume or velocity or flight path or viscosity or surface tension start to deviate from preset values, the software can correct for this in a closed loop manner. If the droplet is not ejected at all, the control software stops the printer and an operator can maintain the print head.09-04-2008
20120176432LIQUID EJECTING APPARATUS - When it is assumed that an expected maximum temperature change from a reference temperature during usage of a printer is Δt, an ink landing interval corresponding to raster resolution on a recording medium in a head main scanning direction is P, a maximum distance between nozzle rows of recording heads on a sub carriage is L, a linear expansion coefficient of a linear scale is α2, and a linear expansion coefficient of the sub carriage is α1, L(|α1−α2|)Δt≦P/2 is satisfied.07-12-2012
20120176431FLUID EJECTION DEVICE, FLUID EJECTION METHOD, AND MEDICAL APPARATUS - A fluid ejection device for ejecting a fluid to incise or excise a target includes: a fluid supplying unit which supplies the fluid; an operation unit to which the fluid supplied from the fluid supplying unit continues; a fluid ejection tube which ejects the fluid continuing to the operation unit; an ejection mode selecting unit which allows a predetermined ejection mode to be selected; an acceleration sensor which detects an operation acceleration of the operation unit; and a controller which controls ejection of the fluid, using a preset acceleration that is set on the basis of the ejection mode that is selected, and the operation acceleration detected by the acceleration sensor.07-12-2012
20120075373LIQUID DISCHARGER AND IMAGE FORMING APPARATUS HAVING THE SAME - A liquid discharger is provided, which includes a gap adjustor that moves a first liquid discharge head between a first position and a second position where a gap between the first liquid discharge head and a sheet is smaller than when the first liquid discharge head is in the first position, and a controller configured to, when determining that second liquid is left enough to form an image and that a quality level stored in a storage unit is equal to or more than a predetermined level, control the gap adjustor to place the first liquid discharge head in the second position, control the first liquid discharge head to discharge the first liquid, and forbid a second liquid discharge head to discharge the second liquid.03-29-2012
20120075372Method of Controlling a Print Control Device, Printer Control Method, and Printer - Ink ejection problems of black ink nozzles are compensated for by forming dots by mixing cyan, magenta, and yellow inks without reducing print quality. When a nozzle that discharges black ink becomes unable to properly eject ink, cyan, magenta, and yellow inks are ejected from respective nozzles to the discharge area on the recording medium to which the defective nozzle should eject ink. The volume of cyan, magenta, and yellow ink that is ejected is set based on the amount of black ink that should be ejected by the defective nozzle.03-29-2012
20110102488PRINTING DEVICE AND METHOD OF CONTROLLING PRINTING DEVICE - Provided is a printing device including: nozzles which discharge a first aqueous ink for printing a main image; nozzles which discharge a second aqueous ink for printing a background image; and a control unit which controls printing of an image on a medium having an aqueous ink absorption property based on one selected from a first mode for printing the main image using the first aqueous ink and a second mode for superposing and printing the main image using the first aqueous ink and the background image using the second aqueous ink, wherein the amount of first aqueous ink dischargeable per unit area of the medium when the main image is printed on the medium in the second mode is less than that when the main image is printed on the medium in the first mode.05-05-2011
20120249645LIQUID DISCHARGE APPARATUS, METHOD AND STORAGE MEDIUM FOR COMPUTER-READABLY STORING PROGRAM THEREIN - An inkjet printer includes a liquid discharge head, a temperature sensor, and a controller. The controller changes a voltage waveform to be input to the ink discharge head, while a nozzle surface is facing a first gap. The temperature sensor measures a first actual temperature of the ink discharge head, while the nozzle surface is facing a second gap. The controller calculates, on the basis of the first actual temperature and a discharge history of ink discharged to a sheet located between the first gap and the second gap, a first estimated temperature of the ink discharge head corresponding to the time in which the nozzle surface is facing the first gap. The controller changes the voltage waveform on the basis of the first estimated temperature.10-04-2012
20120249643INK-JET RECORDING APPARATUS AND METHOD OF DETECTING INCLINATION OF NOZZLE ROW OF INK-JET HEAD - An ink-jet recording apparatus, including: a head having nozzles arranged in at least one row along an arrangement direction; a conveyor mechanism; and a controller including a pattern forming portion to form a pattern for detecting inclination of the at least one nozzle row with respect to the nozzle arrangement direction, the pattern including (A) a first inclination detect pattern including parallel two lines formed by ejection respectively from: a first nozzle group located at a first section of one of the at least one nozzle low and a second nozzle group located at a second section different from the first section, when the head moves in one direction in a scanning direction, and (B) a second inclination detect pattern including parallel two lines formed by ejection respectively from: the first nozzle group; and the second nozzle group, when the head moves in another direction opposite to the one direction.10-04-2012
20120256981LIQUID EJECTING APPARATUS AND CONTROL METHOD THEREOF - A recording head ejects colored ink and clear ink from a plurality of nozzles to the recording paper. A control device controls a recording head to eject the colored ink to the recording paper in accordance with control data designating an image to be formed and controls the recording head to eject the clear ink so as to form a dust suppressing pattern on the recording paper, that is arranged by repeating a unit pattern including an ejecting region to which the clear ink is ejected and a thinning region to which the clear ink is not ejected.10-11-2012
20100002036APPARATUS FOR AND METHOD OF CONTROLLING JETTING OF INK IN INKJET PRINTER - Provided are an apparatus and method of controlling jetting of ink of an inkjet printer. The apparatus includes at least one print head chip, which includes a temperature sensor for sensing the temperature of the print head chip and a voltage controlled oscillator (VCO) for converting the sensed temperature to a frequency component. The apparatus may also include a counter, which converts the frequency component to a code information using a reference frequency component, and a controller, which controls the ink jetting operation of the at least one print head chip based on the code information and/or the frequency component.01-07-2010
20120188301PRINTING APPARATUS AND METHOD FOR ADJUSTING PRINTING POSITION THEREOF - The invention provides a printing apparatus which can adjust printing position more accurately. The apparatus has a printing unit, a pattern printing unit to print a first pattern and a second pattern so as to form a third pattern, and an adjustment unit to perform an adjustment regarding position of dots to be printed by the printing unit based on an optical reflectivity of the third pattern. The second pattern is substantially the same as the first pattern and is shifted relative to the first pattern in a predetermined direction. The first and second patterns each include a plurality of patterns having different cyclic natures in the predetermined direction.07-26-2012
20120081437LIQUID EJECTING DEVICE - A liquid ejecting device to eject droplets of liquid onto a recording medium is provided. The image ejecting device includes a recording medium conveyer, a liquid ejecting head, a detector unit, an image data storage, a controller, and a cancellation signal output unit to output cancellation signals in an error condition. The controller includes a creating unit to create first dot pattern data and sum segments extracted from the first dot pattern data to create second dot pattern data, a transmission unit, and a cancellation controller unit to stop the creating unit, create second dot pattern data by adding a dot pattern to the segments having been extracted from the first dot pattern data, and transmit the created second dot pattern data to the transmission unit. The controller controls the liquid ejecting head to eject the droplets from the nozzles according to the second dot pattern data.04-05-2012
20120081435METHOD OF COMPENSATING FOR DEAD NOZZLES IN STATIONARY PAGEWIDTH PRINTHEAD - A method of compensating for a dead nozzle in a stationary pagewidth printhead. The method includes the steps of: (i) identifying the dead nozzle; (ii) selecting a functioning nozzle in a same nozzle row as the dead nozzle; and firing ink droplets from the selected functioning nozzle at a primary dot position associated with the dead nozzle.04-05-2012
20120229545PRINTING METHOD AND PRINTING APPARATUS - A printing method includes selecting any one of a first printing mode and a second printing mode based on a printing position error data and an permissible printing position error; and performing a printing process based on the selected printing mode, wherein the first printing mode is a mode in which after a first liquid is discharged to the recording medium, the recording medium is transported to a upstream side in the transportation direction and other liquid is discharged, and the second printing mode is a mode in which the first liquid is discharged from the upstream nozzles in the transportation direction to the recording medium and other liquid is discharged from nozzles that are positioned from downstream side in transportation direction.09-13-2012
20120229546IMAGE FORMING APPARATUS, PATTERN POSITION DETERMINING METHOD, AND IMAGE FORMING SYSTEM - An image forming apparatus which reads a test pattern formed onto a recording medium to adjust an ejection timing of liquid droplets is disclosed. The apparatus includes a reading unit; a pattern data storage unit; an image forming unit; a relative movement unit; an intensity data obtaining unit which obtains intensity data on a reflected light which is received by a light receiving unit from a scanning position of a light while the light moves over the test pattern; and a position detecting unit which applies a line position determining operation on the intensity data and detects a line position.09-13-2012
20120229547LIQUID DISCHARGE METHOD - A liquid discharge method including: performing a discharge operation of discharging liquid from each nozzle in a plurality of nozzle arrays, to each of which liquid is supplied from a corresponding container, the plurality of nozzle arrays corresponding to the plurality of containers which respectively contain a plurality of kinds of liquid, the nozzles being arranged in an array direction; detecting whether or not the liquid is discharged from each nozzle by the discharge operation; containing liquid to be discharged from a certain nozzle array in a container corresponding to a nozzle array which is different from the certain nozzle array when it is detected that there is a nozzle which does not discharge liquid in the certain nozzle array; and controlling the nozzle array which is different from the certain nozzle array to discharge the liquid to be discharged from the certain nozzle array.09-13-2012
20100177135INKJET PRINTER ASSEMBLY WITH DRIVEN MECHANISMS AND TRANSMISSION ASSEMBLY FOR DRIVING DRIVEN MECHANISMS - An inkjet printer assembly includes a cartridge having an integrated pagewidth printhead integrated circuit (IC); a cradle for receiving the cartridge; an air compressor for providing compressed air to the cartridge, the air compressor including a fan housing, an air filter, and an impeller, the fan housing having an air outlet adapted to mate with an air inlet port of the cartridge; a motor having a transmission assembly provided with a direct drive coupling from a spindle of the motor to the impeller of the air compressor; and a controller for determining a performance characteristic of the cartridge and to control an operation the printhead IC in response to the determined performance characteristic of the cartridge.07-15-2010
20110122186VERIFYING A MAINTENANCE PROCESS ON A PRINT HEAD - The present invention is embodied in a printing system (05-26-2011
20110122185METHOD FOR CALIBRATING AN INKJET PRINTER AND PRINT PRODUCT - An inkjet printer has a print head with a number of ink ejecting nozzles that are driven by way of a control signal. The print head is calibrated near the time of the intended printing operation. A predefined calibration screen is printed with the inkjet printer, the value of a measurement parameter characterizing the ink application is determined on the basis of the printed calibration screen, and the ink ejection quantity per dot is calibrated. The calibration includes adapting the control signal using the determined value of the measurement parameter. A print product is printed by an inkjet printer that has been calibrated in this way.05-26-2011
20110122184Image forming apparatus, image formation method, and computer-readable medium - An image forming apparatus including a first carriage having a print head independently movable in a main scanning direction, a second carriage having a print head movable with the first carriage, an encoder sheet, first and second home position reference units provided to the first and second carriages, a home position detector that detects the first and second home position reference units, and first and second position detectors provided to the first and second carriages, which detect positions of the first and second carriages by reading the encoder sheet. A control unit controls ejection of ink from the print head of the first carriage based on an output from the first position detector, and ejection of ink from the print head of the second carriage based on the output from the second position detector.05-26-2011
20100328391FIRING SIGNAL FORWARDING IN A FLUID EJECTION DEVICE - A method for forwarding a firing signal within a nozzle group of a fluid ejection device includes receiving warm data and fire data. A firing signal having a firing pulse preceded by a warming pulse is received. The firing signal is conditionally modified according to of the fire data. The conditionally modified firing signal is forwarded to a particular nozzle circuit of the nozzle group.12-30-2010
20100328390IMAGE PROCESSING APPARATUS, IMAGE PROCESSING SYSTEM, AND IMAGE PROCESSING METHOD - The present invention includes a recording control unit configured to record a recording position adjustment chart including a pattern for adjusting a recording position of a recording head for discharging ink, and a determination unit configured to determine an adjustment value for adjusting the recording position based on data of the pattern included in the recording position adjustment chart read as image data, in which the recording position adjustment chart includes a mark for detecting an inclination in reading the recording position adjustment chart.12-30-2010
20100328389INKJET PRINTER, INKJET PRINTING METHOD AND PROGRAM - The present invention has an object of providing an inkjet printing apparatus which can improve image performance while restricting an ink consumption amount of a treatment liquid. The present invention generates ejection data for ejecting the plural kinds of the ink and the treatment liquid to each predetermined area of a printing medium in a predetermined order from the print head. The plural kinds of the ink is classified in plurality based upon a minimum application amount of the treatment liquid per a predetermined area required for realizing an effect of the treatment liquid. Ejection data generating unit generates the ejection data in such a manner as to eject the plural kinds of the ink and the treatment liquid from the print head according to the order determined in accordance with the classification of the ink ejected within the predetermined area.12-30-2010
20100328388INKJET PRINTER, INKJET PRINTING METHOD AND PROGRAM - The present invention ejects a treatment liquid at a scan before a scan where ink is ejected and reduces variations in a time interval from a point of the ejection of the treatment liquid to a point of the ejection of the ink, thereby enabling an increase in image performance, and longevity, low costs and reduction in size of the print head. For achieving this object, the present invention includes a treatment liquid ejection data generating unit configured to generate the treatment liquid ejection data for ejecting the treatment liquid from the print head to the unit area before the formation of the image by the ink starts. The treatment liquid ejection data generating unit generates the treatment liquid ejection data in such a manner as to eject the treatment liquid at the plural times of the scans of the print head.12-30-2010
20100328387PRINTING APPARATUS AND PRINTING METHOD - Each of four areas of 2×2 in one pixel has four sub areas and the four sub areas correspond to four nozzle arrays A to D. In the sub area of each area, information showing what nozzle array is used for a print of the area is defined. The sub area filled in black shows performing therein a print of a dot using nozzles in the nozzle array corresponding to the sub area. In this way, the dot arrangement pattern has information showing the nozzle array to which nozzles used for printing an area belong, for each area. Therefore, without executing the particular data allocation processing such as mask processing, the allocation of the dot data to the plurality of nozzle arrays can be carried out with a simple arrangement.12-30-2010
20080297552INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - An object of the present invention is to provide an ink jet printing apparatus that inhibits the temperature of a print head from increasing excessively while preventing significant density or hue unevenness from occurring in images, without the need for a complicated structure or complicated control. Thus, the present invention detects temperature of the print head, and sets number of scans in which the print head is to stand by until start of scanning and a standby time for each of the set number of scans by the print head, on the basis of the detected temperature.12-04-2008
20130169709INKJET IMAGE RECORDING APPARATUS07-04-2013
20120320119IMAGE RECORDING DEVICE AND METHOD OF IMAGE RECORDING - An image recording device which includes a control unit which alternately performs, main-scannings in which the recording head is moved in the main-scanning direction while the recording head ejecting the liquid to form line images that extend in the main scanning direction and are adjacent to each other in the sub-scanning direction, and sub-scannings in which the recording head is moved in the sub-scanning direction, and a detection unit which detects a displacement of a mark which is formed on the recording medium in the sub-scanning direction, wherein the control unit adjusts a movement amount of the recording head which is moved in the sub-scanning direction in the sub-scannings on the basis of a detection result of the detection unit.12-20-2012
20120268514Reflex Printing With Temperature Feedback Control - A method for operating a web printing system enables web and roller changes arising from temperature changes to be identified and used to adjust operation of the reflex registration system. The method includes identifying a temperature change for at least one roller in a web printing system, identifying a temperature change for a web moving through the web printing system at one or more locations in the web printing system, modifying web velocity computations for a reflex registration system with reference to the identified temperature change for the at least one roller and the identified temperature change for the web, and operating printheads to eject ink onto the web at positions identified with reference to the modified web velocity computations.10-25-2012
20110227979IMAGE FORMING APPARATUS, IMAGE FORMING METHOD AND COMPUTER READABLE STORAGE MEDIUM - An image forming apparatus includes: a detection unit that detects the position of the leading edge of a medium in a sub-scanning direction, the detection unit being moved in a main-scanning direction at a speed identical to the speed of a carriage that moves in the main-scanning direction and discharges ink; a position acquisition unit that acquires the end position of the detection unit in the main-scanning direction when image formation on a first medium is completed; and a control unit that controls a leading edge detection position of the detection unit in the main-scanning direction according to a detection unit moving amount and a medium moving amount when the detection unit detects the leading edge of a second medium on which an image is formed after the image formation on the first medium.09-22-2011
20100231630LIQUID DROPLET JETTING APPARATUS - A liquid droplet jetting apparatus which jets liquid droplets of a liquid onto a recording medium includes: a jetting head having a channel unit in which a plurality of nozzles for jetting the liquid droplets and a plurality of pressure chambers communicating with the nozzles respectively are formed, and a pressure applying section which applies a pressure to the liquid inside the pressure chambers; and a controller having a pressure calculating section which calculates a pressure in the channel unit, and controlling the pressure applying section to execute: a duty limiting in which a jetting amount of the jetting head for a predetermined time period is limited to a first jetting amount when the pressure in the channel unit calculated by the pressure calculating section satisfied a predetermined condition; and a flushing in which the pressure applying section is driven irrespective of a jetting operation onto the recording medium.09-16-2010
20100231629PRINTER CONTROL APPARATUS - A printer control apparatus including a print medium selection unit that presents a list of a plurality of print media and receives any one selected from the print media; a print quality selection unit that presents a list of a plurality of print qualities and receives any one selected from the plurality of print qualities; a print start unit that starts the print in a state a cartridge filled with the ink suitable to a selected print medium is connected to the common nozzle when a high print quality of the print qualities is selected, and starts the print regardless of which one of the plurality of cartridges is connected to the common nozzle when a low print quality of the print qualities is selected; and a guide unit that assigns to raster data to be printed guide raster data.09-16-2010
20100231628LIQUID-EJECTING APPARATUS AND METHOD OF CONTROLLING DRIVING OF LIQUID-EJECTING APPARATUS - A liquid-ejecting apparatus includes: a liquid-ejecting head that is capable of ejecting a liquid from a nozzle opening; a liquid-receiving unit that is capable of receiving the liquid ejected from the liquid-ejecting head; a driving unit that provides driving power that causes the liquid-ejecting head to operate; and a controller that calculates a waiting time in accordance with an amount of liquid ejected during a flushing operation, in which the liquid-ejecting head ejects the liquid into the liquid-receiving unit, and performs control so as to cause the driving unit to perform driving once the calculated waiting time has elapsed.09-16-2010
20100231627LIQUID EJECTING APPARATUS AND METHOD FOR MANUFACTURING LIQUID EJECTING APPARATUS - A printer apparatus includes a drive circuit and a flexible board on which the drive circuit is mounted. A first input line and a second input line for inputting a driving signal respectively to the drive circuit and an actuator are provided on the flexible board. A thermistor that has a high resistance value with terminals provided therein being in an electrically disconnected state at a temperature not less than a predetermined temperature and has a low resistance value with the terminals being in an electrically connected state at a temperature lower than the predetermined temperature is provided between the first input line and the second input line.09-16-2010
20100231626Cancellation Apparatus - Apparatus designed to cancel at least one postage or franking mark on a surface of a mailpiece moving on edge in a belt conveyor, said apparatus comprising: a conveyor portion with a plurality of small superposed belts and a plurality of superposed print heads; and control means for controlling the print heads in such a manner as to cause a print head to print one or more cancellation marks over the franking mark(s) detected on the mailpiece. Each print head is suitable for operating selectively with a plurality of superposed inkjets so as to print only a portion (¾, ½, ¼) of said cancellation mark or a scaled-down version thereof over the franking mark when said franking mark is positioned in such a manner as to be off-center between two belts.09-16-2010
20120327151INKJET RECORDING APPARATUS AND INKJET RECORDING METHOD - When the width of a recording head is greater than the width of a recording medium having a maximum conveyable width, a recorded image corresponding to ejecting ports in the entire area of the recording head cannot be corrected. Multiple correction test patterns are recorded using ejecting ports in part of the recording head, and correction data for correcting an image corresponding to ejecting ports in the entire area of the recording head on the basis of the colorimetric result of the test patterns. In this way, image data to be recorded by the ejecting ports in the entire area of the recording head is corrected.12-27-2012
20120092402INKJET PRINTING APPARATUS AND CARRIAGE CONTROL METHOD - This invention is directed to precisely aligning a carriage in short-distance movement. A carriage is controlled upon printing by an inkjet printhead by reciprocally moving the carriage to which the printhead is mounted along a guide rail by a driving force supplied from a carriage motor. More specifically, a carriage position in the reciprocal direction is detected, and a carriage speed is calculated based on the detected positions. Then, the positions and carriage speed are fed back to control drive of the carriage motor. In the feedback-control, a loss due to friction generated between the carriage and the guide rail is compensated for with respect to a motor instruction value used to control drive of the carriage motor. The compensation is performed by identifying, based on the carriage speed, whether the friction is static or kinetic, and determining a compensation value in accordance with the identification.04-19-2012
20120092403Multiple Monochromatic Print Cartridge Printing System And Print Alignment Method - A colour ink printing system includes a plurality of print head cartridges, each extending across a direction of print media propagation and spaced apart along the direction of print media propagation; a print head chassis for supporting the plurality of print head cartridges, the print head chassis actuable between a printing position, a transition position, and a maintenance position; and a maintenance chassis for supporting a plurality of maintenance cradles, the maintenance chassis actuable between a storage position and an operational position. Each of the plurality of print head cartridges is held stationary with respect to a platen on which print media is propagated to effect printing on the print media. Each of the plurality of print head cartridges is a monochrome print head cartridge ejecting a fluid different to the remaining plurality of print head cartridges.04-19-2012
20120287192NAIL PRINTING DEVICE INCLUDING PRINTING HEAD THAT PERFORMS PRINTING ON FINGERNAIL, AND PRINTING CONTROL METHOD - A nail printing device includes: a printing head which implements printing for a nail of a finger; a fingernail image obtaining unit which picks up a region containing the nail, and obtains a nail region image from a picked-up image; a nail tip region extraction unit which extracts a nail tip region of the nail, the nail tip region not overlapping a nail bed of the finger, from the nail region image; and a shape adjustment-required region extraction unit which positionally aligns a model nail image with the nail region image, and extracts, as a shape adjustment-required region, a region located outward of an outline of the model nail image in the nail tip region.11-15-2012
20100214340PRINTER AND NOZZLE MALFUNCTION JUDGMENT PROGRAM - A printer comprises an ink-jet head, and a control unit which has a judgment pattern printing control section. When a judgment pattern is printed, the judgment pattern printing control section allows the discharge of ink droplets of a second color to an area on which ink droplets of a first color are to be landed, before discharging the ink droplets of the first color having a small color difference with respect to a color of a medium. Accordingly, the ink discharge malfunction is reliably judged for the nozzle irrelevant to the color of the recording medium and the color of the ink discharged from the ink-jet head.08-26-2010
20100182366FORMATION OF IMAGE BY IMAGE FORMING APPARATUS WITH OVERLAPPING AREA - A method of forming an image by an image forming apparatus provided with a print head having plural nozzles, wherein the print head has an overlapping area whose print area overlaps a print area of a physically adjacent print head, or has an overlapping area whose print area overlaps an adjacent scan line on a print sheet surface, includes an image forming step of forming an image by the print head, wherein the image forming step includes a control step of controlling in a variable manner an amount of ink sprayed from a proximity nozzle situated in close proximity of the overlapping area, the proximity nozzle being one of the nozzles situated in a non-overlapping area outside the overlapping area.07-22-2010
20130016148INKJET RECORDING APPARATUSAANM YOSHIDA; YasunariAACI Aichi-kenAACO JPAAGP YOSHIDA; Yasunari Aichi-ken JP - An inkjet recording apparatus is provided. The inkjet recording apparatus includes an ejection unit configured to eject an ink droplet for forming a dot based on image data indicating a dot formation mode for each pixel, and a determination unit configured, for an object pixel in which a dot is to be formed, to perform a surrounding area determination of determining whether another pixel in which a dot is to be formed exists in a surrounding area defined around the object pixel. The ejection unit is configured to perform a dividing ejection which divides an ink droplet for forming a dot of the object pixel into plural ink droplets and ejects the plural ink droplets to plural positions apart from each other, on a condition where it is determined that another pixel in which a dot is to be formed does not exist in the surrounding area.01-17-2013
20130016147PRINTING HEAD ALIGNMENT ADJUSTMENTAANM CARDELLS TORMO; Ana MariaAACI BarcelonaAACO ESAAGP CARDELLS TORMO; Ana Maria Barcelona ESAANM Barambio; Angel MartinezAACI BarcelonaAACO ESAAGP Barambio; Angel Martinez Barcelona ESAANM Vall; Marc SerraAACI BarcelonaAACO ESAAGP Vall; Marc Serra Barcelona ES - A method for automated alignment adjustment of a printing head includes determining a current drop velocity for the printing head based on a cumulative amount of ink that was dispensed by the printing head. An alignment adjustment on the printing head is performed to compensate for a change in the drop velocity based on the current drop velocity. A computer readable medium containing executable instructions and a system are also described.01-17-2013
20110141176IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - In image processing it is possible to adequately reduce density unevenness and graininess according to the duty of the image data. More specifically, when dividing multi-valued data and generating 2-pass multi-pass printing data, in addition to the divided multi-valued data for each of the two passes, divided multi-valued data that is common to both of the two passes is also generated. Moreover, the quantized data of that common multi-valued data is reflected on the quantized data of each pass. Furthermore, when generating quantized data, the division ratio when generating common data in the division of multi-valued data is set according to the duty (gradation value) of the multi-valued data. By doing so it becomes possible to adequately reduce the density unevenness and graininess according to the duty of the image data.06-16-2011
20130021398Method and System for Aligning Printheads that Eject Clear Ink in an Inkjet Printer - A method enables an operator to detect misalignment of printheads that eject clear ink in an inkjet printer. The method prints a first test pattern with a first color of ink and then prints a second test pattern of clear ink on top of the first test pattern. The ink of the first and the second test patterns is then spread to enable the clear ink to be dispersed in interstitial spaces in the ink of the first color. An operator is then able to detect the spatial relationship of predetermined marks in the second test pattern to predetermined marks in the first test pattern. The predetermined marks of the first and the second test patterns are arranged to enable an operator to detect a misalignment distance and the inkjet printer uses the misalignment distance entered by the operator to adjust the alignment of the printheads that eject clear ink.01-24-2013
20130021399INK JET RECORDING APPARATUS - An inkjet recording apparatus includes a recording head, a cap, and a preliminary discharge unit. The recording head can discharge a plurality of types of ink. The cap caps a discharge port face of the recording head. The preliminary discharge unit causes the recording head to execute a preliminary discharge. The preliminary discharge unit changes a preliminary discharge operation according to a length of time during which the discharge port face is capped by the cap.01-24-2013
20120242733PRINT MODULE, INFORMATION PROCESSING DEVICE, PRINT SYSTEM, PRINT UNIT, INK SUPPLY UNIT, PRINT METHOD, AND PROGRAM - The present invention provides a print module, an information processing device, a print system, a print unit, an ink supply unit, a print method and program, all capable of quickly and easily meeting demands for a print medium size change, particularly to increased sizes, while at the same time coping with demands for faster printing speed. To this end, this invention constructs the print heads (09-27-2012
20120242732LIQUID DISCHARGING APPARATUS - A liquid discharging apparatus has a dot forming section that forms a plurality of dot rows; a designation section that designates a density irregularity region having a density irregularity among the plurality of dot rows formed on the medium; a correction data creating unit that creates a plurality of correction data items of the density irregularity region designated by the designation section, the correction data being obtained by changing a gradation value of a density irregularity portion of the density irregularity region, by the use of the nozzles each corresponding to each dot row of the density irregularity region; and a selection section that selects a corrected image having a small density irregularity among a plurality of corrected images each formed on the medium by the dot forming section based on each correction data item.09-27-2012
20120242731FLUID DROPLET EJECTION DEVICE AND EJECTION INSPECTION METHOD - A print unit prints by ejecting fluid droplets from a plurality of nozzles while moving in a primary scanning direction relative to a print medium. An ejection inspection unit inspects fluid droplet ejection by a group of target nozzles, which are part of an ejection nozzle subset obtained by dividing the nozzles according to the number of nozzles required to form the smallest printing width in the secondary scanning direction. A control unit controls the print unit and the ejection inspection unit, and selects the group of target nozzles in the ejection nozzle subset and performs the ejection inspection each time a specific amount of printing is completed.09-27-2012
20120242730SYSTEM AND METHOD FOR COMPENSATING FOR ROLL ECCENTRICITY IN A PRINTER - A printer includes a plurality of a plurality of printheads and a plurality of rolls positioned opposite the printheads along a media path in the printer. Print media contact and move over the rolls as the printheads eject ink onto the print media moving along the media path. A controller is configured to generate a signal to operate a printhead with reference to an angular position of a roll positioned opposite to the printhead that receives the signal to compensate for flight time errors due to backer roll eccentricity.09-27-2012
20080231649IMAGE FORMING APPARATUS, METHOD FOR CORRECTING DISPLACEMENT OF LANDING POSITIONS - A disclosed image forming apparatus for forming an image on a recording medium being conveyed includes: a recording head discharging droplets; a pattern forming unit forming an adjustment pattern for detecting displacement of landing positions of droplets on a water-repellent member, the adjustment pattern including a minimum block pattern for each detection item and being formed with plural droplets independent of one another; a reading unit including a light emitting unit projecting a light onto the adjustment pattern and a light receiving unit receiving a regular reflection light from the adjustment pattern; and a landing position correcting unit correcting the landing positions of the droplets discharged from the recording head based on a result of reading by the reading unit.09-25-2008
20080225070Image forming apparatus - In an image forming apparatus, a control unit determines that dirt is present on the linear scale when a detecting unit detects a change in a moving direction of a moving member while the moving member is moving at a constant speed.09-18-2008
20080225069LIQUID EJECTION HEAD, METHOD FOR CONTROLLING THE SAME, AND PRINTER - A method for controlling a liquid jet head includes: a first step of applying a specified voltage to the liquid jet head to eject a droplet; a second step of measuring the speed of the droplet by using a laser beam; a third step of comparing the speed of the droplet measured and a reference value; and a fourth step of re-setting the voltage according to a comparison result.09-18-2008
20080225068LIQUID-JET DEVICE, IMAGE FORMING APPARATUS, AND METHOD FOR ADJUSTING LANDING POSITIONS OF LIQUID DROPLETS - A disclosed liquid-jet device includes a liquid-jet head configured to jet liquid droplets; a pattern formation control unit configured to control the liquid-jet head and thereby to form a test pattern composed of separate liquid droplets on a water-repellent part; a detecting unit including a light-emitting element configured to illuminate the test pattern on the water-repellent part and a light-receiving element configured to receive specularly reflected light from the illuminated test pattern and to output a detection signal proportional to the received specularly reflected light; and a landing position adjusting unit configured to adjust landing positions of the liquid droplets based on the detection signal from the light-receiving element.09-18-2008
20080225067IMAGE FORMING APPARATUS AND IMPACT POSITION DISPLACEMENT CORRECTION METHOD - An image forming apparatus is provided with a carriage in which recording heads having nozzles for ejecting liquid droplets are mounted and is configured to form an image on a recording medium being transported. The image forming apparatus includes a pattern forming unit that forms an impact position displacement adjustment pattern formed of plural independent liquid droplets on a water repellent member; a reading unit that includes a light emitting unit for emitting light onto the adjustment pattern and a light receiving unit for receiving specular reflection light from the adjustment pattern; and an impact position correcting unit that corrects an impact position of a liquid droplet to be ejected from the recording head based on a read result by the reading unit. The reading unit is disposed on the carriage and is arranged close to the side of a guide member that guides movement of the carriage.09-18-2008
20080225066IMAGE FORMING APPARATUS AND METHOD OF CORRECTING DEVIATION OF SHOOTING POSITION - An adjustment pattern, which is composed of a reference pattern made of plural independent liquid droplets and a pattern to be measured made of plural independent liquid droplets ejected under an ejection condition different from the reference pattern, is formed on a water-repellent conveying belt. Then, light is applied to the adjustment pattern to receive the regular reflection light from the adjustment pattern, so that the adjustment pattern is scanned. The distance between the respective patterns is measured based on the measured result. Finally, liquid droplet ejection timing of the recording head is corrected based on the result thus measured.09-18-2008
20080225065Method and apparatus for image registration - A method of registering an image onto a sheet of media on an imaging surface of a printer having a printhead for imaging onto the sheet, comprising: detecting a position of said sheet of media being advanced onto the imaging surface using a first sensor positioned along said media path upstream of the printhead; and firing the printhead at a time based on the detected position and a calibrated distance between the sensor and the printhead.09-18-2008
20130176355PRINTING HEAD NOZZLE EVALUATION - A method for evaluating performance of a plurality of nozzles of a printing head includes repeatedly operating each of the nozzles to print test marks on a surface of a substrate, each of the test marks printed by that nozzle being printed at a different time. At least once during the repeated operation of each of the nozzles, at least some of the test marks are erased from the surface. The test marks that were printed by that nozzle are inspected for a feature that is indicative of the performance of that nozzle.07-11-2013
20130208041METHOD AND APPARATUS FOR CONTROLLING FILM DEPOSITION - The disclosure relates to a method for depositing films on a substrate which may form part of an LED or other types of display. In one embodiment, the disclosure relates to an apparatus for depositing ink on a substrate. The apparatus includes a chamber for receiving ink; a discharge nozzle having an inlet port and an outlet port, the discharge nozzle receiving a quantity of ink from the chamber at the inlet port and dispensing the quantity of ink from the outlet port; and a dispenser for metering the quantity of ink from the chamber to the inlet port of the discharge nozzle; wherein the chamber receives ink in liquid form having a plurality of suspended particles and the quantity of ink is pulsatingly metered from the chamber to the discharge nozzle; and the discharge nozzle evaporates the carrier liquid and deposits the solid particles on the substrate.08-15-2013
20080218548Digital solid ink stick identification and recognition - A system for an ink delivery system comprises a feed path having an insertion end and a melt end, and an ink stick transport for moving at least one ink stick between the insertion end and the melt end of the feed path. At least one sensor is positioned along the feed path. A controller is configured to actuate the transport to move at least one ink stick in a first direction from the insertion end toward the melt end of the feed path so that a coded sensor feature of the at least one ink stick actuates the at least one sensor to generate a signal. The controller is configured to actuate the transport to move the at least one ink stick in one of the first direction and a second direction toward the insertion end of the feed path in response to the signal.09-11-2008
20120249644INKJET PRINTER AND EJECTION TIMING CORRECTION METHOD - A head includes first and second outlet rows, and records uniform images in check regions. In each uniform image, a combination of a first dot row formed with the first outlet row and a second dot row formed with the second outlet row while being spaced apart from the first dot row in a movement direction is repeatedly arranged with a repeat pitch in its direction. When recording the uniform image in each check region, a distance obtained by changing a reference distance, which is half the repeat pitch, by a set shift amount is assigned as a distance between each first dot row and each second dot row, the set shift amount being progressively changed for the check regions. A maximum density check region is specified, and ejection timing of the second outlet row is corrected based on the set shift amount corresponding to the maximum density check region.10-04-2012
20130135376PRINTING APPARATUS - The present invention has been made to judge the discharge state of each nozzle accurately at an appropriate timing. For this purpose, a printing apparatus using a printhead including a heater and a temperature sensor to detect a temperature of the heater has the following arrangement. A temporal change in a detected temperature is monitored upon driving the printhead. In the temperature dropping process, temperatures are extracted at plural points of a time interval including a timing at which a feature point of the temporal change in the detected temperature in normal discharge appears. The second derivative of the temperature is calculated and added to obtain a total sum. The total sum is compared with a threshold defined based on the characteristic of the temporal change in the monitored temperature in discharge failure, thereby judging whether to normally discharge ink.05-30-2013
20130113855Method and System for Adjusting Printhead Voltage Parameters in an Inkjet Printer - A method of operating a printer enables the mass of the ink drops ejected by the printheads in the printer to maintained in an optimal range without measuring the drop mass being ejected by the inkjets in the printheads. After calibration of the printheads, the printheads are operated with electrical signals having different peak-to-peak voltages. The number of inoperable inkjets for each printhead is determined from image data of the ejected ink on the image receiving member and the number of inoperable inkjets for each printhead is compared to a predetermined threshold. The peak-to-peak voltage for the electrical signals used to operate a printhead is adjusted with reference to the number of inoperable inkjets and the predetermined threshold.05-09-2013
20130100189PRINTING APPARATUS AND PROCESSING METHOD THEREOF - A printing apparatus includes a printhead configured to array a nozzle array in which a plurality of nozzles for discharging ink are arrayed in the first direction, a reading unit configured to read, as a plurality of luminance values aligned in a nozzle arrayed direction, an inspection pattern formed by discharging ink from the plurality of nozzles of the printhead, a calculation unit configured to calculate a plurality of difference values each by calculating a difference between two luminance values spaced apart by a predetermined number of luminance values, and an analysis unit configured to analyze an ink discharge state in the plurality of nozzles based on the plurality of difference values.04-25-2013
20130100191PRINTING APPARATUS AND PRINTING METHOD - A head unit is provided that includes a plurality of head groups having a first head and a second head in a direction which crosses a transport direction of a medium. Color difference is obtained which indicates difference in color between patches formed for each band using dots having the same dot diameter from among a plurality of patches based on the result of color measurement performed on a test pattern which includes the plurality of patches for each band, the plurality of patches being formed for each head group using dots having different dot diameters. The amount of first ink and the amount of second ink, which are respectively ejected from the first head and the second head which are included in all the head groups, are adjusted such that the dot diameter becomes the dot diameter which is determined based on the color difference.04-25-2013
20110267392CHANGING PRINTMODES ACCORDING TO OBJECTIVE - In one embodiment, a plot width for an image to be printed is determined. A carriage return time that is a function of the plot width and a first carriage speed in a first printmode is calculated. A change is made from the first printmode to a second printmode according to an objective if the carriage return time is less than a media advance time.11-03-2011
20130141483FLUID DISCHARGE HEAD SEMICONDUCTOR DEVICE, FLUID DISCHARGE HEAD, AND FLUID DISCHARGE APPARATUS - A fluid discharge head semiconductor device, comprising a terminal unit including first pad group including a plurality of pads, a processing unit configured to process input information from the first pad group, a printing unit including a plurality of printing elements configured to discharge a printing material in accordance with a result of the processing, and an inspection output unit including second pad group including at least one pad and an output buffer unit, wherein the processing unit outputs information on an inspection of an operation to the inspection output unit, and the inspection output unit drives the output buffer unit to output the information to the second pad group when performing an inspection, and suppresses the driving of the output buffer unit when performing printing.06-06-2013
20130141484LIQUID EJECTION INSPECTION DEVICE AND LIQUID EJECTION INSPECTION METHOD - A liquid ejection device includes a head, a first sensor, a second sensor, a recovery unit, and a controller. The head is configured to eject liquid on a medium. The first sensor is configured to detect liquid ejection of the head by using a first principle. The second sensor is configured to detect the liquid ejection by using a second principle being different from the first principle. The recovery unit is configured to recover the liquid ejection of the head. The controller is configured to control the first sensor and the second sensor, and control the recovery unit based on a first detection result by the first sensor and a second detection result by the second detector.06-06-2013
20080198194PRINTING METHOD AND PRINTING APPARATUS - A printing method of the present invention includes the steps of: carrying a medium and ejecting ink from a print head to print, on the medium, a mark that can be filled in by a user; detecting, with a sensor, whether or not the mark has been filled in; and performing a process in accordance with a result of the detection by the sensor. With this printing method, operations with respect to a printing apparatus can be performed with ease.08-21-2008
20110273504SWATH PRINTER AND METHOD FOR APPLYING AN INK IMAGE TO A RECEIVING MEDIUM USING A SWATH PRINTER - A swath printer includes a print head that is moveable along a scan direction for applying an ink image to a receiving medium. A transport mechanism is configured to move the receiving medium and the print head with respect to each other in a transport direction that is substantially orthogonal to the scan direction. A first sensor is arranged to detect a position of a first reference pattern present on the receiving medium in a first area thereof, and a second sensor is arranged to detect a position of a second reference pattern present on the receiving medium in a second area thereof. A controller is provided to control the printer on the basis of the detected positions of the reference patterns during use of the printer.11-10-2011
20110273503INKJET PRINTING APPARATUS AND METHOD - A printing apparatus includes a plurality of inkjet print heads to which humidified air is supplied to retain the humidity in the print heads. Ink colors for the plurality of heads are arranged in a sequence corresponding to ink characteristics. The plurality of print heads are arranged in a sequence such that a print head configured to eject ink characterized by having a larger amount of volatile components evaporated within a predetermined time is located in a more upstream area.11-10-2011
20110273502Method And System To Compensate For Process Direction Misalignment Of Printheads In A Continuous Web Inkjet Printer - A method of operating a printer enables printheads mounted on print bars to be operated to compensate for misalignment of printheads in the process direction. The method includes identifying a position in the process direction for each printhead in a plurality of printheads, selecting one of the identified printhead positions as a reference printhead position, identifying a printhead timing parameter for each printhead mounted to at least one print bar, generating a firing signal for the printheads mounted to the at least one print bar, and adjusting delivery of the firing signal by the identified printhead timing parameter for each corresponding printhead mounted to the at least one print bar to coordinate actuation of inkjet ejectors in the printheads mounted to the at least one print bar and compensate for misalignment of the printheads in the process direction.11-10-2011
20110221815Method Of Detecting Drops - A liquid dispensing device (09-15-2011
20110227982RECORDING APPARATUS AND RECORDING METHOD - In a mask pattern used in effecting multi-path recording, (A) a recording permission ratio in each pixel row of a non-boundary area of a first pattern portion corresponding to a first nozzle block is substantially a first value, and a recording permission ratio in each pixel row of a non-boundary area of a second pattern portion corresponding to a second nozzle block adjacent the first nozzle block is substantially a second value, and (B) in a boundary area including a boundary between the first pattern portion and the second pattern portion, the recording permission ratio in each pixel row is between the first value and the second value, and the recording permission ratios in each pixel line are made different depending on a position with respect to a scanning direction. By this, in addition to reducing effects of an in-band unevenness and an inter-band unevenness by (A), a reducing effect of a connecting stripe can be provided by (B).09-22-2011
20090015615Liquid ejection control apparatus, liquid ejection control method and liquid ejection apparatus - A liquid ejection control apparatus which controls a liquid ejection mechanism having a plurality of nozzle groups made up of a plurality of nozzles, comprising: a correction data acquisition unit which acquires correction data for each nozzle group; an image data separation unit which inputs image data comprising a plurality of pixels and separates the image data into respective split image data, each comprising pixels which are to be formed for liquid ejection by the respective nozzle groups; a split image data correction unit which corrects the respective split image data, on the basis of the correction data for the nozzle groups to which the split image data respectively correspond; and an ejection execution control unit which executes liquid ejection by driving the respective corresponding nozzle groups, on the basis of the corrected split image data.01-15-2009
20110249051Inline Calibration of Clear Ink Drop Mass - An imaging device includes print media and a plurality of ink jets for ejecting drops of substantially clear ink onto the print media. One of the print media and the substantially clear ink has a fluorescent characteristic and the other of the print media and the substantially clear ink is substantially non-fluorescent. The imaging device includes a fluorescence sensor having (i) a light emitter for illuminating the print media and the drops of substantially clear ink ejected onto the media by the plurality of ink jets with light of an activating wavelength, and (ii) a light detector for detecting a fluorescence intensity of light received from the print media and the drops of substantially clear ink ejected onto the media in an emission wavelength. A controller is configured to modify an operating parameter of the imaging device based on the fluorescence intensity detected by the sensor.10-13-2011
20130147869Printing Device, Discharge Test Device and Discharge Test Method - A discharge test device including: a head that includes nozzles discharging liquid to a medium, a temperature obtaining section that obtains a temperature related to the head, an identification section that identifies an abnormal nozzle, and a control section that controls the head and the identification section so that: when the temperature obtained is within a first temperature range, the head discharges the liquid to the medium after identification of the abnormal nozzle, when the temperature is outside the first temperature range and within a larger, second temperature range, the head discharges the liquid to the medium without the abnormal nozzle being identified, and when the temperature obtained by the temperature obtaining section is outside the second temperature range, the abnormal nozzle is not identified and the liquid is not discharged to the medium.06-13-2013
20120256980PRINTING APPARATUS - The nozzle failure determination result of discharge failure detection does not consider the heater state of a nozzle, so even a nozzle failure caused by nozzle clogging or the like is determined as a failure. The heater state of an abnormal nozzle can be determined only after driving once, causing a nozzle to be damaged unwantedly. This invention has been made to solve this problem. Whether a nozzle failure has occurred is determined based on the results of both a discharge failure detection operation and heater resistance measurement operation. Detection can be achieved quickly by performing heater resistance measurement during the quiescent period in the discharge failure detection operation. When the discharge failure detection operation is executed after heater resistance measurement, driving of an abnormal nozzle and an unwanted damage to a nozzle can be prevented.10-11-2012
20100302297INKJET PRINTING APPARATUS AND METHOD OF CONTROLLING THE SAME - The invention prevents inconveniences from being caused by ejection failure and unintended mixing of different colors. To this end, the invention performs preliminary ejection of ink after a wiping action to sweep mist adhering to a face of a printing head, in which an ejection opening is formed. Moreover, the amount of ink to be wastefully consumed by the preliminary ejection after the wiping is reduced. To this end, the number of preliminary ejections is regulated. The degree of adherence of mist to the ejection-opening-formed face depends on the amount of printing (the number of printed sheets, the number of ink ejections for printing, or the like). So, at the time of the preliminary ejection after the wiping, the number of ink ejections in the preliminary ejection is regulated in accordance with the amount of printing that has been done since the last wiping action.12-02-2010
20100302295LIQUID EJECTING HEAD INSPECTION APPARATUS, LIQUID EJECTING APPARATUS, AND INSPECTION METHOD OF LIQUID EJECTING HEAD INSPECTION APPARATUS - A liquid ejecting head inspection apparatus detects malfunction of a liquid ejecting head that discharges liquid droplets. The liquid ejecting head inspection apparatus includes a liquid droplet landing portion on which a discharged liquid droplet can land. An electric change detecting unit detects an electric change in the liquid droplet landing portion. A controlling unit supplies a discharging drive signal to a driving element for discharging a liquid droplet, generates a potential difference between the discharged liquid droplet and the liquid droplet landing portion, and detects landing of the liquid droplet based on activity of the electric change detecting unit. A non-landing unit ensures that no liquid droplet lands on the liquid droplet landing portion when the discharging drive signal is applied to the driving element. A judging unit judges whether the liquid ejecting head inspection apparatus functions properly based on activity of the electric change detecting unit.12-02-2010
20100302294DROPLET DISCHARGE METHOD AND DROPLET DISCHARGE DEVICE - A droplet discharge method is for discharging a liquid into a plurality of drawing regions partitioned on a substrate from a plurality of nozzles formed in a droplet discharge head while moving the droplet discharge head relative to the substrate. The droplet discharge method includes dividing the nozzles into a plurality of nozzle groups so that the nozzles in one of the nozzles groups face the same drawing region, correcting an amount of the liquid discharged from the nozzles so that an average value of an amount of the liquid discharged from the nozzles constituting the nozzle groups is substantially uniform among the nozzle groups, and discharging the liquid from the nozzles while the droplet discharge head is moved relative to the substrate.12-02-2010
20100309242RECORDING APPARATUS AND METHOD FOR ADJUSTING RECORDING POSITION - According to the present invention, a recording apparatus is provided which is capable of recording a plurality of patterns, on a recording medium, for detecting an amount of displacement between a recording position of a first discharge port array and a recording position of a second discharge port array in a conveyance direction and acquiring an amount of inclination based on the amount of displacement without conveying the recording medium.12-09-2010
20100309241METHOD FOR INKJET PRINTING - A method for inkjet printing includes providing a light blocking member pattern including a plurality of openings at positions corresponding to pixels, dripping a dummy ink drop on the light blocking member pattern by using an inkjet printer, providing a CCD (charge-coupled device) image for the dripped dummy ink drop, representing the CCD image on rectangular coordinates, calculating a central point under an x-axis and a y-axis of the CCD image, calculating an escape value as a deviation of the central point under the x-axis and the y-axis in the CCD image from a reference point established by the inkjet printer, calculating a time adjustment value of the ink drip based on the escape value, and controlling the time for the ink drip for each nozzle of the inkjet printer by the time adjustment value of the ink drip.12-09-2010
20120274692IMAGE FORMING APPARATUS AND METHODS THEREOF - A method of detecting fluid drops ejected from a fluid applicator unit having nozzles. The method includes establishing a detection zone to detect detection fluid drops transmitted therein and ejecting a set of detection fluid drops through a set of nozzles of the fluid applicator unit through the detection zone to a detection receiving member. The method also includes ejecting a set of warm-up fluid drops through an other set of nozzles to a warm-up receiving member in a manner in which the set of warm-up fluid drops bypasses the detection zone. The method also includes detecting the set of the detection fluid drops ejected into the detection zone.11-01-2012
20120274693IMAGE RECORDING APPARATUS, METHOD FOR PRODUCING TEST PATTERN IN THE SAME, AND NONTRANSITORY STORAGE MEDIUM STORING PROGRAM - An image recording apparatus, including: a first head for ejecting first liquid for recording; a second head for ejecting second liquid; and a controller. The controller selects, based on the image data, one of waveforms for ejecting the first liquid for each pixel and supplies, to the first-liquid ejection head, a drive signal based on the selected waveform. The controller selects, based on the image data, one of the of waveforms for ejecting the second liquid for each pixel and supplies, to the second-liquid ejection head, a drive signal based on the selected waveform. The controller determines whether recording of a test pattern using the second liquid is required, and when the recording of the test pattern using the second liquid is required, selects the waveform such that the first liquid is not ejected.11-01-2012
20110234673IMAGE PROCESSING METHOD, IMAGE PROCESSING APPARATUS, INKJET IMAGE FORMING APPARATUS AND CORRECTION COEFFICIENT DATA GENERATING METHOD - An image processing method of creating image data for forming an image on a recording medium by ejecting liquid droplets from a plurality of nozzles of a recording head onto the recording medium while causing relative movement of the recording medium and the recording head, includes: a correction coefficient storage step of determining correction coefficients for ejection failure correction based on difference of landing interference patterns of a plurality of types, according to correspondence information indicating correspondence relationship between the landing interference patterns and the respective nozzles, the landing interference patterns being based on a landing interference inducing factor including a deposition sequence of the liquid droplets on the recording medium that is defined by an arrangement configuration of the plurality of nozzles and a direction of the relative movement, and storing the correction coefficients for ejection failure correction according to the landing interference patterns, in a storage unit; an ejection failure nozzle position information acquisition step of acquiring ejection failure nozzle position information indicating a position of an ejection failure nozzle which cannot be used for forming the image, of the plurality of nozzles; and a correction processing step of performing a correction calculation on input image data using a corresponding correction coefficient obtained by referring to the correction coefficients for ejection failure correction according to the ejection failure nozzle position information, so as to generate image data corrected in such a manner that output of the ejection failure nozzle is compensated by a nozzle other than the ejection failure nozzle.09-29-2011
20110234672INKJET IMAGE FORMING APPARATUS AND INKJET IMAGE FORMING METHOD - According to one embodiment, an inkjet image forming apparatus includes an inkjet head which ejects an aqueous ink, a recording medium reversing mechanism for reversing a recording medium, and a controller. The controller performs control such that if a both-side recording mode is designated, the location information of an overlapping region of images to be recorded on the front surface and the rear surface is detected, based on the detected recording image location information on the front surface and the rear surface, the density of the images to be recorded at the location on the front surface and the rear surface is determined, and if the image density on one surface is higher than the image density on the other surface, the image density at the location on the one surface is reduced, and controls the inkjet head based on the control.09-29-2011
20110234671LIQUID EJECTION APPARATUS - Provided that at least one of a plurality of recording media which are successively conveyed by a conveyance mechanism is a reference recording medium, a liquid ejection apparatus determines, for an ejection surface, an ejection region which opposes a recording region on the reference recording medium when the medium is being conveyed and a non-ejection region which does not oppose the recording region. Both of the ejection openings in the ejection region and the ejection openings in the non-ejection region carry out at least one of preliminary ejection and preliminary vibration in a recovery period. An amount of ejection of liquid in the preliminary ejection and the frequency of vibration of meniscus in the preliminary vibration are larger in the ejection openings in the ejection region than in the ejection openings in the non-ejection region.09-29-2011
20130155136RECORDING DEVICE AND CONTROL METHOD - A recording device includes: a detection unit converting scattering light generated by intersection between light emitted from a light-emitting unit and an ink droplet discharged from each nozzle of a nozzle array, into an electric signal in a light-receiving unit; a first signal generation unit amplifying the electric signal to generate a first electric signal; a determination unit determining presence or absence of an ink droplet based on a second electric signal representing change of the first electric signal; a relation information generation unit generating relation information in which an amplification value corresponding to the first electric signal generated when an arbitrary nozzle of the nozzle array discharges an ink droplet and the arbitrary nozzle are associated with each other; and a control unit performing control to amplify the electric signal at an amplification value according to a corresponding nozzle based on the relation information.06-20-2013
20110279503Method And System For Measuring And Compensating For Process Direction Artifacts In An Optical Imaging System In An Inkjet Printer - A printer operating method enables a controller to identify process direction errors in an optical imaging system. The method includes identifying a printhead roll error for each printhead in a plurality of printheads in a printer, moving each printhead by an amount that corrects the printhead roll error for the corresponding printhead, generating a plurality of dashes on media with the plurality of printheads as the media moves past the plurality of printheads, identifying a position for each dash in the process direction from image data of the plurality of dashes on the media, identifying a displacement in the process direction for each optical detector in a linear array of optical detectors used to generated the image data of the plurality of dashes, the displacement being identified with reference to the identified positions for the dashes, and operating the printer to compensate for the identified displacements of the optical detectors.11-17-2011
20110292110REFERENCE STRIP - Provided is a system that includes a reference strip and a print head carriage. The reference strip includes transmission windows for transmitting signals. The transmission windows include bridges.12-01-2011
20110304666INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD - After a first scan in a forward direction, conveying corresponding to one nozzle block is performed, and then in a second scan in a backward direction, printing of a “printing area 12-15-2011
20110310153PRINTING SYSTEM - An LDV meter 12-22-2011
20110310152INKJET PRINTING DEVICE AND INKJET PRINTING METHOD - An inkjet printing device that performs printing on a print medium with a print head including a nozzle for discharging ink, includes: a transport unit transporting the print medium; a printing unit discharging the ink while transporting the print medium such that the printing unit prints an image for printing and an image formed by a preliminary discharge; a first limiting unit limiting, based on image data on the image for printing, an ink amount to be discharged such that the amount of ink per unit area is equal to or less than an upper limit Alim; and a second limiting unit limiting an ink amount to be discharged for the image formed by the preliminary discharge such that the amount of ink per unit area is more than the upper limit Alim and is equal to or less than an upper limit Blim.12-22-2011
20110310151PRINTING APPARATUS - A printing apparatus for performing printing on a recording medium includes a printing unit configured to perform printing a plurality of images sequentially on a recording medium, a detection unit configured to detect an unsuitable area that is not suitable for printing on the recording medium, and a control unit configured to control, when the detection unit detects the unsuitable area, so as to define an unprintable region, including the unsuitable area, where the image is not to be printed on the recording medium based on a length of the unsuitable area in a direction of conveyance of the recording medium, and to continue printing the images while avoiding the set unprintable region.12-22-2011
20130187969PRINTING APPARATUS - This invention is made to solve a problem that the power supply cannot be used efficiently because, even when the normally operable ambient temperature of an apparatus is low, the supplied power of the power supply is restricted in consideration of a case in which the ambient temperature is high. To solve this, a temperature sensor measures the temperature of a predetermined portion of a printing apparatus or an ambient temperature. The driving count of printing elements used to print in a region by one scan is compared with a threshold determined in accordance with the measured temperature, and an appropriate printing mode is selected. When the ambient temperature of the printing apparatus is low, a large power can be supplied to the printhead, increasing the efficiency of the power supply.07-25-2013
20130187970METHOD AND APPARATUS FOR DETECTING DISCHARGE DEFECT, IMAGE PROCESSING APPARATUS, COMPUTER-READABLE RECORDING MEDIUM, AND PRINTING SYSTEM - A discharge defect of a nozzle in an apparatus that forms an image on a medium by discharging liquid from a liquid discharge head based on image data is accurately detected. A discharge defect of a nozzle is detected by comparing data (reference data) of a reference image with read data obtained by reading an output image. In this case, a mark for matching the read pixel and the nozzle position with each other is recorded on the medium, and the correspondence relationship is specified by reading the mark. In addition, data items that are converted to have the nozzle resolution by performing a filtering process corresponding to the human visual characteristics for both the data of the reference image and the data of the read image are compared with each other, thereby detecting a discharge defect of a nozzle.07-25-2013
20130187973INK JET PRINTING METHOD AND PRINTER - In an ink jet printing method, a recording medium is moved relative to a print head having a plurality of nozzles, and ink droplets are ejected from the nozzles onto the recording medium in a single pass in accordance with print data supplied to the print head. Spit pattern data is included in the print data A location of an expected ink dot ejected according to the spit pattern data is scanned, providing a scanned image, and such ink dot is searched for in the scanned image in order to determine an actual presence of the ink dot.07-25-2013
20130187971IMAGE PROCESSING METHOD AND IMAGE PROCESSING APPARATUS - There are provided an image processing apparatus and an image processing method which can shorten a drying time of inks in an edge region of an image, and can form a sharp image without bleeding of the ink applied onto the edge region into a blank paper. The image processing method generates applying data for forming an image on a print medium by a relative scan between print heads for ejecting a first ink and a second ink having the same color with the first ink and lower in surface tension than the first ink, and the print medium. The image processing method generates first data for applying the first ink to a predetermined region that is adjacent to an edge region of the image and that is included in an inside region inward of the edge region, and generates second data for applying the second ink to the edge region.07-25-2013
20130187974DOPED BLACK INK WITH INCREASED LIGHT SCATTERING EFFICIENCY FOR NOZZLE HEALTH DETECTION - A method of monitoring nozzle condition in an array of inkjet nozzles comprises ejecting at least one black ink drop from an inkjet nozzle, wherein the black ink comprises a black colorant and a colloidal metal or metal-containing dopant. Light from a collimated light source is directed onto an ink drop-in-flight, and light-scatter from the drop is detected. The dopant increases light-scatter by the ink drop of an incident collimated light beam relative to the same ink without the dopant. From the detected light-scatter, an operational condition of the inkjet nozzle is determined. The dopant is visually undetectable in a printed mark made by the black ink, and the ink has a printed black optical density which is substantially the same as that of the same ink without the dopant.07-25-2013
20130187972In Situ Calibration Of Multiple Printheads To Reference Ink Targets - A method for calibrating in situ a plurality of printheads in an imaging device has been developed. Firing signals operate a plurality of printheads to form ink test patterns on an image receiving member. Reflectance measurements of light reflected from the test patterns and optical density measurements for a portion of the patterns formed by only one printhead in the plurality of printheads are used to adjust the firing signals and enable the printheads to print within a predetermined range about an average reflectance value and a predetermined optical density.07-25-2013
20120019581INFORMATION PROCESSING SYSTEM, PRINTING APPARATUS, AND INFORMATION PROCESSING METHOD - Each of controllers includes an error management section that generates an error command including an error code indicating the content of an error when the controller detects the error. A host apparatus includes a host controller. If the error command from the master controller and the error command from the slave controller are identical to each other, the host controller displays a single piece of error information on a monitor. Specifically, the single piece of error information includes the error code included in the error command and an error message corresponding to the error code.01-26-2012
20120019580RECORDING DEVICE - A recording device has a medium-supporting part that supports a long recording medium, a recording processing part that performs recording process on the recording medium supported by the medium-supporting part, a recording processing part conveyance system that moves the recording processing part, a medium conveyance system that includes a first drive roller, a first drive motor, a second drive roller and a second drive motor, and a control unit that controls the recording device. The control unit retracts the recording processing part to an area outside of the medium-supporting part while maintaining the movement direction of the recording processing part at a time at which an abnormality has occurred in an interval in which the recording processing is carried out on the recording medium while the recording processing part scans above the recording medium by the recording processing part conveyance system.01-26-2012
20130194335LIQUID-DROPLET EJECTION DEVICE - A printer includes an inkjet head that includes a plurality of individual flow passages each including a nozzle and a manifold commonly communicating with the plurality of individual flow passages, a heater that heatsink in the manifold, and a temperature sensor that detects a temperature of ink in the manifold. After the heater heatsink in the manifold, liquid droplets are ejected from the nozzles of the inkjet head. Abnormal ejection of the nozzle is detected based on a detected change in a temperature of the ink in the manifold.08-01-2013
20130194336PRINTING APPARATUS, DRIVING APPARATUS, AND DRIVING METHOD - A printing apparatus according to the present invention comprises a carriage configured to mount a printhead and reciprocate, a driving unit configured to move the carriage, the driving unit including a motor as a driving source, a measurement unit configured to measure a velocity fluctuation of the carriage, a correction unit configured to correct driving of the motor by correction data to reduce a velocity fluctuation of the carriage arising from cogging of the motor, and a setting unit configured to set a parameter which defines a periodic fluctuation manner of the correction data. The setting unit determines a current preferable value of the parameter based on the velocity fluctuation measured by the measurement unit for a current set value of the parameter, and sets a next set value of the parameter from the determined preferable value.08-01-2013
20120056925INKJET PRINTING APPARATUS - An inkjet printing apparatus includes: a conveyer belt with a plurality of belt holes formed therein, the conveyer belt suctioning and conveying a recording medium with a negative pressure acting on the belt holes; a platen with a plurality of through holes formed therein; a pressure-reducing unit for generating the negative pressure on a side of the platen opposite from the side thereof supporting the conveyer belt; inkjet nozzles disposed to face the platen; a distance-changing unit for changing a distance between the inkjet nozzles and a surface of the conveyer belt on which the recording medium is suctioned; and a size-adjusting unit for adjusting, when the distance is large, a size of at least one through hole in a through hole group, which includes the through holes positioned in the vicinity of the inkjet nozzles, such that the size of the at least one through hole is reduced.03-08-2012
20130201237MULTIPLE PRINT HEAD PRINTING APPARATUS AND METHOD OF OPERATION - A printing apparatus has a series of inkjet print heads spaced from one another in a transport direction. A continuous belt driven around a roller system is used to feed sheet media successively to the print heads so that a partial image printed by one print head is overprinted at a subsequent print head with registration of the partial images. A sheet medium is caused to become electrostatically tacked to the belt by passing the sheet past a charging device. Movement of the belt is tracked by a tracking sub-system and operation of the print heads is coordinated with the tracked belt movement to achieve precise registration of the partial images.08-08-2013
20130201238PRINTING APPARATUS AND PRINTING CONTROL METHOD THEREOF - This invention relates to suppression of density unevenness caused by occurrence of ink-landing position shifts between print scans. In an embodiment, upon printing by scanning an inkjet printhead including printing elements, the following control is executed. That is, in order to form an image by print scans of the printhead on a single print area on a print medium, image data are acquired in correspondence with the respective scans. Also, the printing elements are partitioned into plural groups each including continuously arrayed printing elements, and the printing elements in each of the plural groups are time-divisionally driven based on drive sequences. Then, the drive sequences upon time-divisional driving in respective scans are set to include elements having the same drive timings and those having different drive timings.08-08-2013
20130201239Printing Apparatus, Printing Method and Printed Matter - A printing apparatus includes a first nozzle through which to eject color ink, a second nozzle through which to eject clear ink, a control unit that performs control, in a manner that ejects the color ink onto a glittering layer through the first nozzle, and ejects the clear ink onto the color ink through the second nozzle, at the time of forming an image on a medium on which the glittering layer is formed, in which the control unit controls ejection of the clear ink through the second nozzle in such a manner that an amount of the clear ink to be ejected onto the color ink varies according to a light absorption rate of the color ink.08-08-2013
20130201240PATTERN FORMING METHOD AND PATTERN FORMING APPARATUS - A pattern forming method includes: a modification treatment step of, in accordance with a pattern to be formed on a pattern forming surface of a base body, applying a light beam having a width smaller than a diameter of each of dots to constitute the pattern, onto a treatment target region including at least outer edges on both sides in a width direction of a region where the pattern is to be formed in the pattern forming surface, thereby carrying out modification treatment on the treatment target region; and a droplet deposition step of ejecting and depositing droplets of a functional liquid by an inkjet method onto the region where the pattern is to be formed including the treatment target region where the modification treatment has been carried out.08-08-2013
20130100190PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus includes (A) a head that discharges first ink and second ink having a color different from that of the first ink, (B) an optical sensor that includes a light source and a light receiving section, and (C) a controller. In the printing apparatus, when the controller corrects a discharge amount of the second ink, the controller causes the head to discharge the first ink to form a first pattern on a medium, causes the optical sensor to detect light reflected from the first pattern, causes the head to discharge the second ink to form a plurality of second patterns having different gradation values on the first pattern, and causes the optical sensor to detect light reflected from the second pattern.04-25-2013
20120081439IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, INKJET PRINTING APPARATUS, AND INKJET PRINTING METHOD - The invention decreases the enlargement of memory and processing time for the correction of image data carried out to reduce image deterioration caused by nozzle ejection characteristic variation in an inkjet printing apparatus. Print heads are provided with pluralities of chips that have nozzle arrays formed from a plurality of nozzles. Coupled portions and non-overlap portions are formed on each chip. An image processing apparatus sets input image data, which correspond to nozzle regions that are defined in nozzle arrays along the alignment direction of the nozzles of the print head and that are composed of a plurality of nozzles, as processing blocks. The input image data is processed according to parameters defined for each of those processing blocks. The boundaries of the nozzle regions corresponding to the input image data of the processing blocks are established according to the boundaries of the overlap portions and the non-overlap portions.04-05-2012
20120086749PRINTING DEVICE - A printing device includes: a lighting unit that irradiates ink droplets landing on a surface of a printing medium with activated light rays to harden the ink droplets; a transport unit that transports at least one of the printing medium and the lighting unit to move the ink droplets on the surface of the printing medium to an irradiation range of the activated light rays irradiated by the lighting unit; and a plurality of nozzles that ejects various kinds of ink droplets with different ink amounts, and are arranged such that distances of the nozzles from the lighting in a direction parallel to a transport direction of the transport unit are different from each other.04-12-2012
20130208039AQUEOUS INKJET INKS CONTAINING POLYMERIC BINDERS WITH COMPONENTS TO INTERACT WITH CELLULOSE - Disclosed are aqueous inkjet inks containing a polymeric ink additive as a binder. The binder contains a component capable of interacting with cellulose. Certain heterocycles having similar Hansen solubility parameters as cellulose were incorporated into the polymeric binders. Prints from these inks have better durability and optical properties than similar additives that do not have the components capable of interacting with cellulose.08-15-2013
20130208040METHOD AND APPARATUS FOR THERMAL JET PRINTING - The disclosure relates to a method for depositing films on a substrate which may form part of an LED or other types of display. In one embodiment, the disclosure relates to an apparatus for depositing ink on a substrate. The apparatus includes a chamber for receiving ink; a discharge nozzle having an inlet port and an outlet port, the discharge nozzle receiving a quantity of ink from the chamber at the inlet port and dispensing the quantity of ink from the outlet port; and a dispenser for metering the quantity of ink from the chamber to the inlet port of the discharge nozzle; wherein the chamber receives ink in liquid form having a plurality of suspended particles and the quantity of ink is pulsatingly metered from the chamber to the discharge nozzle; and the discharge nozzle evaporates the carrier liquid and deposits the solid particles on the substrate.08-15-2013

Patent applications in class Responsive to condition