Entries |
Document | Title | Date |
20080198193 | Hand Held Printer With Vertical Misalignment Correction - A method for automatically providing vertical misalignment correction in a hand held printer fixedly mounting a printhead having a plurality of ink jetting nozzles arranged in a column includes defining a fixed quantity subset of the plurality of ink jetting nozzles for printing a print swath; defining a reference line corresponding to a desired printing path; assigning print data to the feed quantity subset of the plurality of ink jetting nozzles for printing the print swath along the desired printing path; determining an amount of vertical deviation of the hand held printer from the reference line as the hand held printer is hand-scanned along the desired printing path; and dynamically shifting a location of the fixed quantity subset within the plurality of ink jetting nozzles to compensate for the amount of vertical deviation as the hand held printer is hand-scanned along the desired printing path. | 08-21-2008 |
20080204494 | INKJET RECORDING APPARATUS AND INKJET RECORDING METHOD - In an inkjet recording apparatus and an inkjet recording method, recording on a first unit region, of unit regions provided on a recording medium, is performed by scanning a recording head an even number of times over the first unit region, and recording on a second unit region adjacent to the first unit region is performed by scanning the recording head an odd number of times over the second unit region. The last of the scanning motions of the recording head over the first and second unit regions is made in a first direction. | 08-28-2008 |
20080218547 | INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - An ink jet printing apparatus and method are provided which can satisfy in a well-balanced manner both an improvement of image uniformity and a reduction in glossiness variations. A plurality of print modes are prepared which include: a first print mode to perform a printing operation in a way that makes equal print ratios of the plurality of nozzle arrays; and a second print mode to perform a printing operation in a way that makes a print ratio of at least one of nozzle arrays situated at ends of the plurality of nozzle arrays smaller than print ratios of other nozzle arrays. The user selects from the plurality of print modes an appropriate one that strikes a balance between uniformity and glossiness and thereby can achieve a desired quality of image. | 09-11-2008 |
20080238968 | METHOD AND APPARATUS FOR EJECTING INK DROPLETS ONTO A SUBSTRATE - An ink mixed with spacer members is ejected onto one or both of a TFT substrate and a CF substrate while an in jet head having a plurality of ink jet nozzles is moved. The excursions of a predetermined number of ink jet nozzles from an end of the ink-jet head overlap those of a next excursion of the ink jet head without causing overlapping of ejected ink within the overlapping area. An abrupt stepwise change in the amount of ejected ink is suppressed whereby an uneven gap is suppressed. | 10-02-2008 |
20080238969 | ELEMENT SUBSTRATE FOR RECORDING HEAD, RECORDING HEAD, HEAD CARTRIDGE, AND RECORDING APPARATUS - An element substrate for a recording head includes groups of heating resistors that are disposed next to one another in each group; logic circuits configured to time-divisionally drive the heating resistors in units of one block; a heat enable signal line common to the groups of heating resisters, the heat enable signal line supplying a heat enable signal to each of the groups of heating resisters; and delay circuits connected to the heat enable signal line at positions between the groups of heating resisters. A signal output from each delay circuit to the next group is inverted. | 10-02-2008 |
20080238970 | Image recording apparatus and power shutoff process method for use therein - A recovery mechanism comprises a recovery unit for performing a recovery process for recovering from clogging or contamination by ink in the nozzle array constituted by a plurality of nozzles. A conveyance mechanism supports and conveys, downstream, a recording medium that is conveyed from the upstream area of a conveyance path and handed over. A power control unit makes a control unit control the shutoff of a power supply to the nozzle array drive unit that drives the nozzle array when an abnormality occurs in the supporting and conveying of the recording medium that is performed by the conveyance mechanism in the recording process using the ink jetted from a plurality of nozzles or when the recovery unit makes contact with the nozzle array during recovery of the nozzle array in the recovery process. | 10-02-2008 |
20080252673 | INK JET PRINTING APPARATUS AND INK JET PRITING METHOD - An object of the present invention is to provide an ink jet printing apparatus which can prevent possible stripe-like density unevenness in a joint in a print head constructed by joining a plurality of chips together even if the print head is inclined to the regular position of the print head. The present invention uses a print head having the nozzle arrays being shifted in a direction in which the nozzles are arranged, so as to have overlapping portions in a direction orthogonal to the nozzle arranging direction. The present invention controls an ink ejecting operation of the nozzles in the overlapping portions between the plurality of nozzle arrays on the basis of an angle between the nozzle array arranging direction and a direction orthogonal to the direction in which the print head moves relative to the print medium. | 10-16-2008 |
20080266339 | Banding adjustment method for multiple printheads - A banding adjustment method for an ink jet imaging device having a plurality of printheads comprises printing a plurality of test bands, each test band being printed by a plurality of printheads such that each printhead of the plurality prints a section of each test band. The drop mass generated by each printhead of the plurality is selectively adjusted between a default drop mass and an adjusted drop mass to print each test band of the plurality such that the plurality of printed test bands have various combinations of sections having the default drop mass and the adjusted drop mass. The user is then prompted to select a test band from the plurality of printed test bands. | 10-30-2008 |
20080266340 | Method for normalizing a printhead assembly - A method of adjusting an ink jet imaging device comprises measuring a drop parameter for drops generated by each drop generator in a plurality of drop generators. Each drop generator is configured to generate a drop in response to a drop generating signal having a fill portion, an eject portion, and a resonance tuning portion. A first portion of the drops are generated by each drop generator at a first fill density, and a second portion of the drops are generated by each drop generator at a second fill density. A drop parameter difference is measured for each drop generator of the plurality of drop generators of drops generated at the first and second fill densities. The resonance tuning portion of the drop generating signal for at least one drop generator is adjusted so that the drop parameter difference for the drop generator corresponds to the drop parameter difference normalization value. | 10-30-2008 |
20080266341 | CONTROL LOGIC FOR AN INKJET PRINTHEAD - Control logic for an inkjet printhead having a plurality of inkjet nozzles is disclosed. Each inkjet nozzle has an actuator for ejecting an ink droplet from the inkjet nozzle when a resistive element of the actuator is heated by an electrical current. For each nozzle the control logic includes a shift register comprising a plurality of successive registers, the shift register receives input data in a first register, and shifts the input data to successive registers upon receipt of a shift signal, a transfer register for latching data in one of the registers of the shift register; a control gate for outputting a control pulse in response to data in the transfer register, and a drive transistor for providing an energy pulse to the resistive element of the actuator upon receipt of the control pulse. The control logic includes at least 2000 shift registers, 2000 transfer registers, 2000 control gates and 2000 drive transistors on a single silicon integrated circuit. | 10-30-2008 |
20080278527 | INK JET PRINTHEAD HAVING A MOVABLE REDUNDANT ARRAY OF NOZZLES - There is provided a printhead for an ink jet printer, including a primary and a secondary array of nozzles in the printhead, the nozzles in the primary array of nozzles being in alignment with the nozzles in the secondary array of nozzles in a printing process direction; detection system for detecting defective nozzles in both the primary array of nozzles and in the secondary array of nozzles; a first mode operation having means for selectively activating nozzles in the secondary array of nozzles that are in alignment with defective nozzles in the primary array of nozzles; and a second mode of operation having means, responsive to the detecting means, for translating the secondary array of nozzles in relation to the primary array of nozzles along a path to a first position to realigned the nozzles in the primary array of nozzles to nozzles in the secondary array of nozzles if defective nozzles are aligned in both the primary and the secondary array of nozzles. | 11-13-2008 |
20080278528 | INKJET IMAGE-FORMING APPARATUS AND METHOD THEREOF - An inkjet image-forming apparatus includes an array inkjet head that is formed along a printing path through which a paper on which an image or a test image is formed is discharged, and includes a length corresponding to the width of the paper, and a plurality of nozzles to eject ink, and a missing nozzle detection unit formed along a missing nozzle detection path that is connected to the printing path to scan an image or a test image formed by the array inkjet head by transporting the paper (P), on which the test image is formed, towards the printing path, and a method thereof. | 11-13-2008 |
20080278529 | Print Engine Controller Having Controller Circuitry With An Open Actuator Test Circuit - Provided is a print engine controller for an inkjet printhead with a plurality of nozzle arrangements operatively actuated by thermal actuators. The controller has controller circuitry with an open actuator test circuit to test each respective actuator. The controller circuitry includes an open actuator test input, a column enable input and a row enable input, as well as a drive transistor operatively linking said thermal actuator to a power supply. The circuitry also includes a bleed transistor arranged in parallel with the thermal actuator, and a sense transistor operatively linking an output of the drive transistor and inputs of the thermal actuator and bleed transistor to a sensing node. The controller circuitry is configured so that when only the column enable and row enable inputs are activated the bleed and sense transistors are deactivated and the drive transistor is activated to link the thermal actuator to the power supply. | 11-13-2008 |
20080284807 | INK-JET RECORDING APPARATUS - An ink-jet recording apparatus of one aspect of the invention comprises nozzles are arranged on an ink ejection surface in a matrix in a first direction in which a recording medium is conveyed and a second direction orthogonal to the first direction. The plurality of nozzles are grouped into a plurality of nozzle sets, each of the plurality of nozzle sets includes nozzles arranged along the second direction. The plurality of nozzle sets are spaced from one another in the first direction by first distances, each of the first distances is an integral multiple of a distance that is obtained by multiplying a unit distance by 2 | 11-20-2008 |
20080284808 | INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD - Provided is an inkjet printing apparatus for performing a printing with a first nozzle array for ejecting a first color ink and a second nozzle array for ejecting a second color ink. The apparatus reduces density unevenness stemming from a sudden error in conveyance of a printing medium. When the apparatus performs a scan with respect to the printing medium for printing in which using ranges of nozzles in the first and second nozzle arrays are restricted to parts thereof, the restricted using ranges of the first and second nozzle arrays are shifted from each other. Thereby, the density unevenness stemming from the error in conveyance occur in positions which are different between the first and second colors, Thus, it possible to make the overall density unevenness less obvious by making gradients of variations in brightness and chroma of an image smaller. | 11-20-2008 |
20080291228 | METHODS AND APPARATUS FOR INKJET PRINTING WITH MULTIPLE ROWS OF PRINT HEADS - According to the present invention, multiple rows of nozzles within a print head may be arranged proximal to and offset from each other to facilitate inkjet printing. Print heads may comprise a single row of nozzles or may comprise a plurality of rows of nozzles. Each row of nozzles may be situated such that the immediately adjacent row of nozzles may be offset by a predetermined distance. In some embodiments, adjacent rows of nozzles may each print with the same color. In this way, adjacent offset rows of nozzles may be used in combination to dispense ink drops into sub-pixel wells in improved patterns and with improved ink distribution within the sub-pixel well. These offset print techniques may also enable tighter grouping of ink drops within a sub-pixel well and enable faster printing operations. | 11-27-2008 |
20080291229 | LIQUID MATERIAL ARRANGEMENT METHOD, COLOR FILTER MANUFACTURING METHOD, AND ORGANIC EL DISPLAY DEVICE MANUFACTURING METHOD - A liquid material arrangement method includes performing a first pattern generating step, a dot deleting step, and a liquid material arranging step. The first pattern generating step includes generating a first dot pattern in which a first prescribed number of dots is set according to the prescribed region. The dot deleting step includes deleting a second prescribed number of dots from the first prescribed number of dots to generate a second dot pattern. The liquid material arranging step includes arranging a liquid material in a prescribed region on a substrate by causing a nozzle and the substrate to scan in relative manner and discharging the liquid material from the nozzle based on the second dot pattern. The performing of the dot deleting step further includes deleting at least one prohibited dot with priority with the prohibited dot being determined based on discharge information of the nozzle determined in advance. | 11-27-2008 |
20080291230 | IMAGE FORMING APPARATUS HAVING A MISSING NOZZLE DETECTION UNIT - An image forming apparatus including an image printing unit formed above a printing path along which an image is formed on a print medium. The printing unit has an array inkjet printhead with a length corresponding to the width of a print medium and includes a plurality of nozzles to eject ink. The multi-functional device also includes an image scanning unit formed above the image printing unit with a scanning unit formed on a document reading path to transfer a document to scan and read the document and a missing nozzle detection unit which forms a missing nozzle detection path that connects the printing path and the document reading path, and transports a print medium on which a test image is formed by the array inkjet printhead, to the document reading path via the missing nozzle detection path to scan the test image using the scanning unit. The image scanning unit and the missing nozzle detection unit also share the scanning unit. | 11-27-2008 |
20080297549 | RECORDING 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. | 12-04-2008 |
20080297550 | Method for Arranging Liquid Droplet Ejection Heads, Head Unit, Liquid Droplet Ejection Apparatus, Method for Manufacturing Electro-Optical Apparatus, Electro-Optical Apparatus, and Electronic Device - Provided herein is a method for arranging liquid droplet ejection heads comprising: arranging and fixing a plurality of inkjet liquid droplet ejection heads, ejecting a common functional liquid, on a common carriage plate, based on the amount of liquid droplets ejected from a number of ejecting nozzles in a nozzle row that each of the liquid droplet ejection heads has, with the heads shifted in a direction of the nozzle row, the heads being so arranged and fixed that in the heads closely aligned in the direction of the nozzle row, a difference between the amounts of liquid droplets ejected from two ejection nozzles located at each innermost end of the heads is within a predetermined range of tolerance, and the amounts of liquid droplets ejected from two ejection nozzles located at the outermost ends in the direction of the nozzle row are within a predetermined range of a reference amount. | 12-04-2008 |
20080297551 | ELEMENT SUBSTRATE, PRINTHEAD, HEAD CARTRIDGE, PRINTING APPARATUS, AND METHOD FOR CONFIRMING ELECTRICAL CONNECTION STATUS OF PRINTHEAD AND PRINTING APPARATUS - An element substrate capable of independently confirming an electrical connection status with a logic power source without increasing costs due to increasing the number of terminals or the like. The element substrate includes a connection status output circuit that outputs a signal in response to a connection status of a logic power source input terminal, or a connection status of input terminals of each of a print signal, a clock signal, a drive signal, and a latch signal, and a connection status output terminal that outputs an output signal from the connection status output circuit. | 12-04-2008 |
20080303851 | ELECTRO-THERMALLY ACTUATED PRINTER WITH HIGH MEDIA FEED SPEED - An inkjet printer that has a printhead mounted adjacent a media feed path, the printhead having an array of droplet ejectors for ejecting ink droplets on to a media substrate. Each of the droplet ejectors having an electro-thermal actuator. The printer also having a media feed drive for moving the media substrate relative to the array of droplet ejectors at a speed greater than 0.1 m/s. | 12-11-2008 |
20090002417 | INKJET PRINTING APPARATUS AND PRINTING METHOD THEREFOR - The printing elements of each printing element array are divided into blocks. A block to be driven and a block not to be driven are determined for each scanning of a printhead. The printhead is driven to print by complementing blocks to be driven by each scanning in a plurality of scanning operations. In each scanning, the printhead prints while making a printing area corresponding to at least one ink different from a printing area corresponding to another ink. | 01-01-2009 |
20090002418 | PRINTER FORMED FROM COMPLEMENTARILY FITTING PARTS - A printer includes a printhead cartridge, in turn, having a printhead and ink supply for supplying ink to the printhead. The printhead includes a series of ink ejection integrated circuits (ICs) that are complementarily engaged together. Each IC includes spaced apart groups of nozzles configured to eject respective types of ink. The nozzles in each group are arranged to form staggered rows. A cradle unit complementarily engages with the printhead cartridge and has a media transport mechanism for transporting print media past the printhead. A media supply cartridge is configured to supply the media to the cradle unit. | 01-01-2009 |
20090009547 | Print control device, printing device, print control method, program, and data structure - When print data having a low resolution is selected with priority to print speed, it is inevitable that the print quality is deteriorated. Thus, in order to solve the above-described problem, a print controller for controlling a print head having k lines of nozzle arrays or more corresponding to k kinds of (k is a natural number of two or more) ink having different densities includes: (a) a resolution determination section for determining whether print data having a resolution 1/n times (n is a natural number of two or more) a nozzle pitch has been given, and (b) when an affirmative result is obtained by the resolution determination section, an output-pattern allocation section for allocating, to a quantized value corresponding to each pixel, an output pattern including n-row×n-column dots and relating one of k kinds of ink having different densities or no ejection to each dot. | 01-08-2009 |
20090009548 | Fluid Discharging Device and Control Method Therefor - A fluid discharging device includes: a head having a predetermined number of nozzle arrays in which n (n is an integral number equal to or more than 2) nozzles capable of discharging a predetermined fluid are arranged, the respective nozzle arrays formed to allow the fluid discharged from the kth (k=1, 2, . . . , n) nozzles belonging to the respective nozzle arrays to land on the same position on a target; a supply path that supplies the predetermined fluid to the respective nozzle arrays; a moving unit that relatively moves the head and the target; and a control unit that controls the moving unit to relatively move the head and the target and controls the head in such a manner that, regarding all nozzles belonging to the predetermined number of nozzle arrays, the nozzles are divided into plural groups so that the nozzles belonging to at least two or more nozzle arrays are combined to incorporate first to nth nozzles, the respective groups are as the group for use with predetermined timing, and the nozzles belonging to the set group for use are allowed to discharge the fluid to form dot rows on the target. | 01-08-2009 |
20090009549 | PRINTHEAD HAVING GROUPED NOZZLE FIRING - A printhead having a plurality of rows of nozzles is provided. The nozzles in each row are grouped into fire groups. The printhead is configured to sequentially fire, for each row, the nozzles of each fire group, such that each nozzle in the sequence from each fire group is fired simultaneously with respective corresponding nozzles in the sequence in the other fire groups. | 01-08-2009 |
20090009550 | PRINTER CONTROLLER FOR PRINTHEAD PEAK WITH REDUNDANT INKJET NOZZLES - A printer controller is provided which is configured to supply dot data to an inkjet printhead so that each inkjet nozzle of at least one pair of inkjet nozzles of the printhead which are configurable to print a dot of the same colored ink onto a substantially same position on a print medium are controlled to print dots to a same specific line of printing on the print medium associated with said at least one pair of nozzles. | 01-08-2009 |
20090015611 | INK JET PRINTING SYSTEM AND INK JET PRINTING METHOD - An image data signal value conversion is performed such that the volume of ink applied to image areas on a print medium to be printed by the overlapping portions of the printing element substrates is smaller than that applied to image areas on the print medium to be printed by other than the overlapping portions. Alternatively, the image data signal value conversion is performed such that the volume of ink applied to overlapping areas on the print medium to be printed by two consecutive printing main scans is smaller than that applied to other than the overlapping areas. For this reason, even when forming photographic images by using an elongate “joining head”, high-quality images with no density unevenness between overlapping areas and other areas on a print medium can be produced. Also in a serial type printing apparatus, uniform images with no seam stripes can be produced. | 01-15-2009 |
20090015612 | INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - The present invention provides an ink jet printing apparatus and an ink jet printing method which are based on the multi-pass printing method using a print head having a plurality of nozzle rows and which enables a reduction in the number of nozzles to be simultaneously driven, allowing ink to be stably ejected. On the basis of the multi-pass printing method of dividing print data into a plurality of pieces by using mask patterns, the mask patterns are offset according to the positional relationship between the plurality of nozzle rows in the print head. | 01-15-2009 |
20090015613 | PRINTER CONTROLLER FOR PROVIDING DOT DATA TO A PRINTHEAD - Provided is a printer controller for providing dot data to a printhead. The controller is configured to modulate a peak power requirement of the printhead which includes a plurality of first nozzles and second nozzles supplied with a same colored ink. The nozzles are arranged in a plurality of sets, wherein each set of nozzles comprises one first nozzle and one corresponding second nozzle, each nozzle in a set being configurable to print a dot of ink onto a similar position on a print medium. The controller is configured to alternately select a first firing nozzle and a second firing nozzle from at least one set of nozzles, and to print dots onto the print medium using the selected firing nozzles. One set of nozzles is configured to print a column of same-colored dots down the print medium with each nozzle in the set contributing dots to the column. | 01-15-2009 |
20090021546 | INKJET PRINTING APPARATUS AND PRINTHEAD DRIVING METHOD - An object of this invention is to decrease the amount of ink mist while keeping the image quality high in inkjet printing. To achieve this object, printing is performed by time-divisionally driving, for each block, a plurality of nozzles for discharging ink. In preliminary discharge, the nozzles are so driven as to set the driving time interval between neighboring nozzles to the first time interval. In printing, the nozzles are so driven as to set the driving time interval between neighboring nozzles to the second time interval longer than the first time interval. | 01-22-2009 |
20090021547 | INKJET PRINTHEAD WITH A PRINTER CONTROLLER FOR CONTROLLING NOZZLE FIRING SEQUENCE - An inkjet printhead includes a number of printhead modules arranged end-to-end to span a width of a page, the printhead modules defining color channels also to span the width of the page. A plurality of inkjet nozzles is arranged on the modules such that rows of the nozzles span the width of the page, with at least one row of nozzles in fluid communication with respective channels, the nozzles capable of being fired to eject ink from their associated channels, the nozzles of each row on an associated module defining a segment of nozzles. A printer controller controls a firing sequence of the nozzles and is configured so that nozzles from segments associated with different color channels are fired sequentially during a predetermined time allocated for firing a line of nozzles. | 01-22-2009 |
20090027433 | Method And Apparatus For Automatically Aligning Arrays Of Printing Elements - A method and apparatus for aligning the printing of dots generated by at least one array of printing elements in an printing apparatus, wherein the method includes the steps of printing a calibration test pattern, scanning the printed calibration test pattern, determining at least one calibration value based on the scanned calibration test pattern, positioning an alignment adjustment tool relative to the array of printing elements of which the alignment needs to be adjusted and, based on the calculated calibration value, automatically adjusting the alignment of the array of printing elements using the alignment adjustment tool. | 01-29-2009 |
20090033699 | INKJET IMAGE FORMING APPARATUS - An inkjet image forming apparatus is disclosed. A print head is provided having a plurality of head chips having nozzles arranged in at least two rows for each color. A storage unit stores position information of a head chip having a normal formed gap (which is in an integer multiple relationship having a resolution of, e.g., 9″/1200 or 10″/1200) between a first row of nozzles and a second row of nozzles of the at least two rows of nozzles, position information of a head chip having an erroneous formed gap (which is not in an integer multiple relationship having a resolution of, e.g., 8.5″/1200 or 9.5″/1200) between the first row of nozzles and the second row of nozzles, and gap information. A control unit controls the head chip having the normal formed gap according to a first mode, by which printing data of the first row of nozzles and the second row of nozzles for each line are simultaneously printed to have a basic vertical resolution, and to control the head chip having the erroneous formed gap according to a second mode, by which the printing data of the first row of nozzles and the second row of nozzles for each line are alternately printed to have a double basic vertical resolution. | 02-05-2009 |
20090033700 | Liquid droplet ejection apparatus, method of manufacturing electro-optical apparatus, and electro-optical apparatus - Provided herein is an inkjet type liquid droplet ejection apparatus which supplies functional liquid to a plurality of head units having one or more functional liquid droplet ejection heads, each of the head units is based on a supply unit, and which plots on a workpiece having: a tank unit which supplies the functional liquid continuously to the plurality of head units from a new functional liquid tank which is switched from an old functional liquid tank; a functional liquid supplying channel having a plurality of individual channels; a detecting device which detects whether the new functional liquid of the replaced functional liquid tank reaches to the branching unit; and a controller which controls the plurality of functional liquid droplet ejection heads individually, the controller controls each of the head units to make consumption amounts of the functional liquid equal to the maximum consumption amount of the functional liquid. | 02-05-2009 |
20090040254 | LIQUID-DROPLET EJECTING APPARATUS - A liquid-droplet ejecting apparatus, including: a plurality of liquid-droplet ejecting heads; a plurality of liquid storage chambers respectively communicating with the liquid-droplet ejecting heads and respectively storing liquids to be respectively supplied to the liquid-droplet ejecting heads; a plurality of liquid tanks respectively accommodating the liquids to be respectively supplied to the liquid storage chambers, the liquid tanks and the liquid storage chambers being configured to be connected to each other only when the liquids in the liquid tanks are respectively supplied to the liquid storage chambers; a common gas chamber communicating commonly with the liquid storage chambers via respective gas-permeable membranes; and a pressure control device configured to control a pressure in the common gas chamber such that, when the pressure becomes not higher than a threshold that is lower than an atmospheric pressure, the pressure becomes higher than the threshold. | 02-12-2009 |
20090040255 | INKJET PRINTER AND INKJET PRINTING METHOD - An image having high quality is output, in which density unevenness due to a deflection in an ejecting direction is reduced, in an inkjet printer for forming an image by ejecting small droplets at a high frequency and high density. Thereby, in a mask pattern employed for multi-pass printing, a print permission rate of an ejection port positioned at the end of a ejection port array is set higher than those of ejection ports positioned at the other parts of the ejection port array. Thus, even if extremely small droplets are ejected at a high frequency and high-density, the generated density unevenness is reduced, and an image excellent in uniformity and having high definition can be output at a high speed. | 02-12-2009 |
20090058905 | METHOD OF PRINTING WITH PRINTHEAD HAVING REDUNDANT INKJET NOZZLES - A method is provided in which dot data is supplied to an inkjet printhead so that each inkjet nozzle of at least one pair of inkjet nozzles of the printhead which are configurable to print a dot of the same colored ink onto a substantially same position on a print medium are controlled to print dots to a same specific line of printing on the print medium associated with said at least one pair of nozzles. | 03-05-2009 |
20090073209 | PRINTING UNIT AND INKJET RECORDING APPARATUS - A print unit memorizes image data to be output to a page of recording media at a register as jetting data in an order of storing a plurality of image data of one line in page memory, wherein each of the image data of one line is memorized at the register in an order of storing the plurality of image data of one dot, in case when a conveyance direction of recording media is normal; and memorizes the image data to be output to the page of the recording media at the register in the order of storing the plurality of the image data of one line, wherein each of the image data of one line is memorized in a reverse order to the order of storing the plurality of the image data of one dot, in case when the conveyance direction is reverse. | 03-19-2009 |
20090079774 | MOTION COMPENSATION FOR MONOLITHIC INKJET HEAD - A method of printing, a printer, and a printhead for printing drops spaced from each other at a printed drop pitch P are provided. The printhead includes an array of N rows of nozzles. Each nozzle row of the N rows of nozzles is spaced apart from adjacent rows of nozzles by a distance D, where D is an integer multiple of P minus a correction factor C, where C=(P/N). | 03-26-2009 |
20090096825 | Ejection Device and Ejection Method with Uneven Liquid Ejection Control Effect - A liquid ejection device of the invention is constructed to eject a liquid to an ejection object. The liquid ejection device has a dot data generator configured to generate dot data from given image data, where the dot data represents a dot creation state in each pixel set on the ejection object. The liquid ejection device also has a liquid ejector equipped with a nozzle array including multiple nozzles aligned in a specific direction substantially perpendicular to a scanning direction. The liquid ejector makes multiple scans of the nozzle array in the scanning direction in a common printing area according to the generated dot data and ejects the liquid to the ejection object to create dots. The dot data generator has a specific print mode that generates corrective dot data by skipping a virtual dot array created by one scan from a group of dot arrays to be created by the multiple scans of the nozzle array, in order to prevent a potential contact with a dot array to be created by another scan. This arrangement desirably prevents unevenness of liquid ejection caused by a meandering scan of at least either the liquid ejector or the ejection object. | 04-16-2009 |
20090102875 | INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - Provided are an ink jet printing apparatus and an ink jet printing method which are capable of printing high-quality images by performing printing scanning in a forward direction and in an opposite direction without needing complicated control of a transfer amount of a printing medium nor causing throughput degradation. Inks are ejected from odd-numbered nozzles in scanning in the forward direction and are ejected from even-numbered nozzles in scanning in the opposite direction. | 04-23-2009 |
20090115807 | LIQUID EJECTING DEVICE AND METHOD OF CONTROLLING LIQUID EJECTING DEVICE - A liquid ejecting device includes a nozzle group formed by aligning nozzles that eject a liquid, and a liquid ejecting head that ejects liquids from the nozzles based on ejection serial data that represents ejection or non-ejection of each nozzle of the nozzle group. The liquid ejecting head ejects a liquid to a landing target while the liquid ejecting head and the landing target are relatively moved in a second direction that is perpendicular to a first direction in which the nozzles are aligned. The liquid ejecting device further includes a meandering correction pattern forming unit that forms a meandering correction pattern along the second 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 |
20090122095 | PRINT HEAD UNIT AND METHOD FOR MANUFACTURING PATTERNED LAYER ON SUBSTRATE WITH THE SAME - A print head unit ( | 05-14-2009 |
20090153606 | INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - An adverse effect of air flows occurring near the nozzle line with high print duty is reliably avoided by appropriately dividing and allocating the print data to a plurality of ink ejection nozzle lines. When the print head is scanning in a forward direction, a combination of a magenta ink nozzle line and a yellow ink nozzle line that do not adjoin each other is mainly used. When the print head is scanning in a backward direction, another combination of a magenta ink nozzle line and a yellow ink nozzle line that do not adjoin each other is mainly used. | 06-18-2009 |
20090160894 | HAND HELD PRINTER COLOR MISALIGNMENT CORRECTION - A method for correcting misalignment between a plurality of columns of color ink jetting nozzle arrays of a color printhead during printing with a hand held printer includes determining a misdirection angle of motion of the plurality of columns of color ink jetting nozzle arrays relative to a desired direction of motion of the hand operated printer; determining for each of the plurality of columns of color ink jetting nozzle arrays a respective usable nozzles subset to be used in printing a swath, based on the misdirection angle; determining an amount of shifting of at least one of the respective usable nozzles subsets to adjust for non-perpendicularity of the color ink jetting nozzle arrays relative to the desired direction of motion, based on the misdirection angle; and shifting the respective usable nozzles subset for a respective column based on the amount determined. | 06-25-2009 |
20090160895 | Liquid ejecting method, liquid ejecting apparatus, and storage medium having program stored thereon - A liquid ejecting method according to the present invention includes the following: varying dots that are to constitute a dot row that is to be formed with a first nozzle row and a second nozzle row, according to a usage rate of each of the first and second nozzle rows when forming that dot row, the first nozzle row including a plurality of first nozzles lined up in a transport direction, the second nozzle row including a plurality of second nozzles in the transport direction, the first nozzles of the first nozzle row forming dots on a medium by ejecting liquid while moving in a movement direction, the second nozzles of the second nozzle row forming dots on the medium by ejecting liquid while moving in the movement direction, the dot row that has been formed on the medium being composed of a plurality of the dots to be lined up on the medium in the movement direction; and forming a plurality of the dot rows in the transport direction by alternately repeating a transport operation of transporting the medium in the transport direction and a dot forming operation of forming a dot on the medium by ejecting liquid from the first nozzles and the second nozzles while the first and second nozzles moving in the movement direction, at least one of the dot rows that have been formed by the first and second nozzles being composed of the dots that are varied according to the usage rate of each of the first nozzle row and the second nozzle row. | 06-25-2009 |
20090167799 | ARRAY-TYPE IMAGE FORMING APPARATUS AND METHOD TO COMPENSATE IMAGE DENSITY - An array-type image forming apparatus and a method for compensating an image using the same include an image density determination unit to determine the image density of each line on a page, a storage unit stores one or more threshold values and a control unit compensates the image density by comparing the determined image density of each line and the threshold value. When the image density reaches the threshold value, the control unit modifies the amount of heat supplied to a print head, thus modifying the amount of ink applied to subsequent lines on the page, in order to provide compensation for the image density. | 07-02-2009 |
20090174739 | Method for minimizing banding artifacts in an ink jet printing apparatus - A multipass printing method is characterized in that, on any given pass, the number of selected print locations onto which printing ink is deposited by each of N nozzles varies from nozzle to nozzle. The variation is governed in accordance with a weighted smoothing spline function, particularly a polynomial B-spline function of the order “j”, where j is a value equal to one less than the number of passes. | 07-09-2009 |
20090174740 | PRINTER AND PRINTING METHOD - An inkjet printer includes a printing head having nozzle units, a main scanning control unit, a sub scanning control unit, and a printing pass setting unit. Each nozzle unit includes a nozzle array where the nozzles are arranged in a nozzle array direction. The main scanning control unit makes the printing head to scan in a main scanning direction while the nozzle units discharge ink drops. The sub scanning control unit relatively moves the printing head with respect to the medium in a sub scanning direction. The printing pass setting unit correlates each of the nozzles with each of multiple printing passes to be printed at once by a scanning of the printing head in the main scanning direction, and sets discharging nozzles among the nozzles to discharge ink drops to the printing passes not to overlap boundaries of the printing passes with boundaries of the nozzle units. | 07-09-2009 |
20090174741 | INK JET RECORDING HEAD AND INK JET RECORDING APPARATUS - An ink jet recording head includes a large nozzle array including a plurality of ejection outlets for ejecting ink; a small nozzle array including a plurality of ejection outlets each having an opening area smaller than an opening area of ejection outlets of the large nozzle array; wherein the ink jet recording head is mountable to an ink jet recording apparatus which is capable of causing the ink jet recording head to eject ink for a purpose of maintenance of ink jet recording head without image formation on a recording material, and wherein the large nozzle array is supplied with light ink consisting of yellow, light cyan or light magenta ink, and the small nozzle array is supplied with dark ink consisting of cyan, magenta or black ink, and wherein the number of ejections of the dark ink is larger than the number of ejections of the light ink. | 07-09-2009 |
20090189935 | BARCODE PRINTING DEVICE AND BARCODE PRINTING METHOD - A barcode printing device, which forms one image using plural same-color heads arranged in parallel, generates a barcode in which the effect of variations in landing position accuracy, caused by variations in the conveyance, is minimized. The barcode printing device comprises plural line heads | 07-30-2009 |
20090189936 | HEAD UNIT AND LIQUID EJECTING METHOD - A head unit includes: a first nozzle group which has a plurality of nozzles ejecting liquid droplets onto a medium to form an image; a second nozzle group which has a plurality of nozzles which do not eject liquid droplets onto the medium, while the nozzles of the first nozzle group eject the liquid droplets onto the medium to form the image; and a controller which determines whether to eject the liquid droplets from each of the nozzles of the first nozzle group on the basis of data individually corresponding to the nozzles of the first nozzle group and which commonly determines whether to eject the liquid droplets from the nozzles of the second nozzle group on the basis of data commonly corresponding to the nozzles of the second nozzle group. | 07-30-2009 |
20090195578 | INK CARTRIDGE, IMAGE FORMING APPARATUS, AND METHOD TO MANUFACTURE INK CARTRIDGE - An ink cartridge to prevent image degradation due to a misalignment of nozzles in a transfer direction of a printing medium and a transverse direction includes a print head substrate, a first head unit including at least one first print head chip which is disposed on the print head substrate and includes a plurality of first nozzles arranged in plural lines in a second direction perpendicular to a first direction which is a transfer direction of a printing medium, thereby forming a first line in the second direction, and a second head unit including at least one second print head chip which is disposed on the print head substrate and which has an ink jetting area overlapping a predetermined area of the first line, thereby forming an overlapping area, and which includes a plurality of second nozzles arranged in plural lines in the second direction, thereby forming a second line spaced from the first line, and dots formed by the first and the second nozzles, which neighbor each other in the overlapping area when jetting ink, have a gap with respect to the first and the second directions within a range satisfying the following equation: | 08-06-2009 |
20090201327 | Printer Having Sequenced Printhead Nozzle Firing - A printer is provided having a printhead having a plurality of sets of n adjacent printing nozzles in at least one nozzle row, and a controller for supplying fire signals to said nozzles, such that, for each set of nozzles, a fire signal is provided by the controller in accordance with the sequence: nozzle position 1, nozzle position n, nozzle position 2, nozzle position (n−1), . . . , nozzle position x. | 08-13-2009 |
20090213154 | PRINTHEAD CONTROLLER FOR NOZZLE FAULT CORRECTION - A printhead controller is provided for supplying print data to a printhead having first and second rows of inkjet nozzles configured to print ink of a similar color. The controller is configured to supply the print data to the printhead such that, in the event a nozzle in the first row is faulty, a corresponding nozzle in the second row prints at a position on print media at or adjacent a position where the faulty nozzle would otherwise have printed. | 08-27-2009 |
20090213155 | PRINTHEAD HAVING SEQUENCED NOZZLE FIRING ON INTEGRATED CIRCUIT - A printhead is provided having an integrated circuit having at least one row comprising a plurality of sets of n adjacent nozzles, each of the nozzles being configured to expel ink in response to fire signals, and a controller for supplying the fire signals to the integrated circuit such that (a) a fire signal is provided to nozzles at a first and nth position in each set of nozzles, then (b) a fire signal is provided to the next inward pair of nozzles in each set, then in the event n is an even number, (b) is repeated until all of the nozzles in each set has been fired, or in the event n is an odd number, (b) is repeated until all of the nozzles but a central nozzle in each set have been fired, and then the central nozzle is fired. | 08-27-2009 |
20090219317 | INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD - When thinning processing is performed to reduce the occurrence of black stripe caused by an overlap between scanning areas that is designed to prevent an end deviation from causing a white stripe, dots printed in a predetermined region by not only an ejection opening array subjected to the thinning processing but also other ejection opening arrays are counted so as to obtain their respective printing duties. Then, a color gamut is obtained based on the printing duties of the respective ejection opening arrays. Then, a thinning rate of the ejection opening array subjected to thinning processing is obtained by referring to a table corresponding to the color gamut, based on the printing duties of the respective ejection opening arrays obtained as above, and the thinning processing is performed. Accordingly, thinning processing can be performed which accurately reflects an amount of actual end deviation. | 09-03-2009 |
20090219318 | INKJET PRINTER - The recording head is formed with ejection holes including first ejection holes and second ejection holes arranged in a first direction. A recording medium has virtual columns extending in the first direction and virtual rows extending in a second direction orthogonal to the first direction. The virtual columns have first virtual columns and second virtual columns alternately arranged in the second direction. The scanning unit performs a first scan and a second scan in the second direction. The controller prevents the recording head in the first scan from ejecting ink droplets from the first ejection holes onto the first virtual columns and from the second ejection holes onto the second virtual columns, and prevents the recording head in the second scan from ejecting ink droplets from the first ejection holes onto the second virtual columns and from the second ejection holes at the first virtual columns. | 09-03-2009 |
20090231374 | METHOD AND APPARATUS FOR AUTOMATICALLY ALIGNING ARRAYS OF PRINTING ELEMENTS - A method and apparatus for aligning the printing of dots generated by at least one array of printing elements of a printing apparatus. The method includes the steps of printing a calibration test pattern, scanning the printed calibration test pattern, determining at least one calibration value based on the scanned calibration test pattern, and adjusting the alignment of the array of printing elements based on the determined calibration value. The step of scanning the printed calibration test pattern further includes automatically positioning a camera relative to the printed calibration test pattern and imaging a detail of the printed calibration test pattern within the field of view of the camera. | 09-17-2009 |
20090244136 | Drawing method, inkjet head, drawing apparatus, method for fabricating printed wiring board and method for manufacturing color filter - A drawing method includes three or more liquid drops are discharged by an inkjet method so as to draw a pattern on a substrate. The plural liquid drops are grouped into a plurality of groups that include at least a group composed of two or more adjacent liquid drops and each of which is composed of one, or two or more liquid drops. In each group composed of two or more liquid drops, each liquid drop hits the substrate so as to overlap an adjacent liquid drop of the same group. Also, a liquid drop disposed at an end of one group hits the substrate to be spaced from an adjacent liquid drop disposed at an end of an adjacent group to be joined to the adjacent liquid drop of the adjacent group when spread on the substrate. | 10-01-2009 |
20090244137 | Printing apparatus - A printing apparatus forms dots of special ink and dots of ordinary ink on a printing medium, at least some of the dots of ordinary ink being superimposed on the dots of special ink, or the dots of special ink being superimposed on at least some of the dots of ordinary ink. The printing apparatus includes a head, a transport mechanism, and a print control section. The head has at least one special ink nozzle that ejects the special ink and at least one ordinary ink nozzle that ejects the ordinary ink. The transport mechanism transports the printing medium relative to the head. The print control section controls the head and the transport mechanism, thereby printing an image on the printing medium using the special ink and the ordinary ink. The at least one special ink nozzle and the at least one ordinary ink nozzle are offset from each other along the direction in which the printing medium is transported and are arranged in the order in which the dots of special ink and the dots of ordinary ink are superimposed. | 10-01-2009 |
20090244138 | RECORDING HEAD, DROPLET DISCHARGE DEVICE AND DROPLET DISCHARGE METHOD - A recording head includes plural nozzle groups and a second nozzle. Each of the nozzle groups includes plural nozzles that respectively form dots, which make up an image, on a recording medium by discharging droplets. The nozzles are arranged in a straight line that is inclined with respect to a main scan direction at a predetermined angle. The plural nozzle groups are arranged in a sub scan direction such that intervals in the sub scan direction between nozzles adjacent in the sub scan direction are substantially identical and positions in the sub scan direction of nozzles belonging to the respective nozzle groups are substantially aligned. The second nozzle is disposed at a substantially central portion in the main scan direction between adjacent nozzles of nozzle groups adjacent in the sub scan direction so as not to overlap with any other nozzle in the main scan direction. | 10-01-2009 |
20090244139 | LIQUID DROPLET EJECTING APPARATUS - An object of the invention is to provide a liquid droplet ejecting apparatus capable of determining a type of droplet to be ejected through each nozzle at an arbitrary ejection timing, with consideration of not only an influence of droplet ejections at preceding and following ejection timings, but also crosstalk between a nozzle column and another nozzle column. | 10-01-2009 |
20090244140 | PRINTING 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. | 10-01-2009 |
20090251500 | PRINTING APPARATUS, PRINTING METHOD AND COMPUTER PROGRAM - There is provided a printing apparatus including a printing unit for printing visual information on a non-recording surface of a rotatably driven recording medium by discharging ink droplets; and a control unit for controlling movement of the printing unit in a radial direction of the recording medium, and controlling a discharge timing of the ink droplets discharged from the printing unit, wherein the printing unit prints the visual information by multi-path printing of completing printing on a same radius position of the non-recording surface by discharging ink from different ink discharge nozzles, and the control unit controls the printing unit so as to print with a printing pattern different from a printing pattern on other locations of the non-recording surface when printing on an innermost periphery region of the non-recording surface with the printing unit. | 10-08-2009 |
20090251501 | PRINTING APPARATUS, PRINTING METHOD AND COMPUTER PROGRAM - There is provided a printing apparatus including a printing unit for printing visual information on a non-recording surface of a rotatably driven recording medium by discharging ink droplets; and a control unit for controlling movement of the printing unit in a radial direction of the rotatably driven recording medium, and controlling a discharge timing of the ink droplets discharged from the printing unit, wherein the printing unit includes a plurality of ink droplet discharge nozzles, arrayed in a line in the radial direction of the recording medium, for discharging ink droplets of different colors by the control of the control unit, and the control unit completes the printing of the visual information by reciprocating the ink droplet discharge nozzles for plural times in the radial direction of the rotatably driven recording medium. | 10-08-2009 |
20090273627 | LIQUID APPLICATOR AND LIQUID SUPPLY METHOD TO BE USED IN LIQUID APPLICATOR - A liquid applicator suitable for manufacturing probe arrays comprises a liquid ejection section having a plurality of sets of a liquid ejecting nozzle adapted to eject liquid onto a medium, a liquid containing section communicating with the liquid ejecting nozzle and a supply port for supplying liquid to the liquid containing section, a liquid supply section having a liquid supply member arranged therein to store liquid to be applied and adapted to supply liquid to the liquid ejection section by way of the supply ports, an information recording body arranged at the liquid ejection section and/or the liquid supply member of the liquid supply section and an information reading device adapted to read information recorded in the information recording body. | 11-05-2009 |
20090278878 | PRINT ELEMENT SUBSTRATE, PRINTHEAD, AND PRINTING APPARATUS - This invention is directed to a print element substrate including a plurality of print element arrays in which different numbers of print elements are arranged. The print element substrate can efficiently transfer data to each print element and efficiently lay out circuits. The print element substrate includes the following arrangement. More specifically, a first print element array having a relatively large number of print elements, and a plurality of second print element arrays which are equal in length to the first print element array and smaller in the number of print elements than the first print element array are juxtaposed. The print element substrate includes one shift register which holds data for driving the print elements of the first print element array, and one shift register which holds data for driving the print elements of the second print element arrays. | 11-12-2009 |
20090278879 | PRINT ELEMENT SUBSTRATE, INKJET PRINTHEAD, AND PRINTING APPARATUS - This invention is directed to an element substrate including a plurality of print element arrays in which print elements are arranged at different arrayed densities. The element substrate can efficiently transfer data to each print element. The element substrate includes the following arrangement. More specifically, the first print element array having a relatively large number of print elements, and the second print element array which is equal in length to the first print element array and has a relatively small number of print elements are juxtaposed. The element substrate includes one shift register which holds data for driving the print element of the second print element array, and a plurality of shift registers for dividing and holding data for driving the print elements of the first print element array. | 11-12-2009 |
20090284558 | INKJET PRINTHEAD AND A METHOD OF INKJET PRINTING - An inkjet printhead comprising a plurality of firing cells, each adapted to generate ink droplet, said firing cells being arranged to form a plurality of matrices; a control circuit for selectively activating said firing cells; said control circuit comprising: a first memory register for storing main printing data defining which firing cells have to be activated in a first printing operation; a second memory register for storing auxiliary printing data defining which firing cells have to be activated in a second printing operation; a processing unit operatively associated with said first and second memory registers for transferring said auxiliary printing data into said first memory register, thereby defining which firing cells have to be activated in said second printing operation; a firing unit for sending to said matrices a single firing signal for each printing operation. Also disclosed is a method of inkjet printing. | 11-19-2009 |
20090309910 | Liquid Ejecting Apparatus and Method for Adjusting Positions of Nozzle Rows - A liquid ejecting apparatus comprises a moving unit that moves by receiving a moving force, and a plurality of nozzle rows for ejecting liquid onto a medium, wherein each of the nozzle rows is adjusted in its position on the moving unit, taking a nozzle row that is arranged on a side close to a line of action of the moving force as a reference. | 12-17-2009 |
20090315932 | METHOD AND SYSTEM FOR HIGH SPEED MULTI-PASS INKJET PRINTING - A method of printing from a printhead includes virtually dividing a nozzle array of the printhead into first and second nozzle sections. N print masks associated with the first and second nozzle sections govern the deposition of ink drops on a print medium. The N print masks are associated with one swath and are defined as a mask grid. The mask grid is arranged as a series of vertically extending adjacent mask columns and a series of horizontally extending mask rows. The vertically extending mask columns comprise enabling mask columns comprising first mask elements and disabling mask columns consisting essentially of second mask elements. The N print masks are associated with the first and second nozzle sections for printing an input image. Each print mask is defined as a mask grid arranged in an N series of vertically extending adjacent mask columns and a series of Z horizontally extending mask rows. The series of mask rows are divided in first and second adjacent mask sections corresponding to the first and second nozzle sections, respectively. The mask rows of the second mask section are arranged spaced from one another by N−1 adjacent second mask elements and the mask rows of the first nozzle section are arranged spaced from one another by 2N−1 adjacent second mask elements within the same mask row | 12-24-2009 |
20090322814 | RECORDING METHOD, RECORDING APPARATUS AND OPERATION CONTROL PROGRAM - Provided is a recording method of attaching liquid droplets on a recording medium so as to form a printing image using a recording apparatus including a recording head divided into a first nozzle group, a second nozzle group and a third nozzle group in a transportation direction of the recording medium, the method including: ejecting a recording material from the first nozzle group with respect to the recording medium observable from an opposite side of a printing image forming surface and forming a first printing image; ejecting a shielding material from the second nozzle group and forming a second printing image shielding the first printing image; and ejecting the recording material from the third nozzle group and forming a third printing image to be superposed on the second printing image. | 12-31-2009 |
20100026746 | IMAGE PROCESSING APPARATUS AND METHOD - In a multipass printing that performs a plurality of printing scans over a unit area of a print medium by using a leading head and a follower head, the multivalued image data for the leading head is distributed according to the print volume information for up to the preceding printing scan. Then, the multivalued image data for the leading head is subjected to the grayscale level reduction operation to generate binary data. Based on the binary data, the print volume information is updated, after which the multivalued image data for the follower head is distributed according to the print volume information. This causes a plurality of printing scans or a plurality of print heads, that print the same unit area, to have a correlation among them, with the result that dots on a plurality of planes when overlapped have an excellent scattering characteristic. | 02-04-2010 |
20100026747 | PRINTING APPARATUS AND METHOD OF ADJUSTING NOZZLE ARRAY - A printing apparatus includes: a first nozzle array with nozzles aligned in a predetermined direction for ejecting liquid on a medium; a second nozzle array with nozzles aligned in the predetermined direction for ejecting liquid on the medium, the second nozzle array being aligned in a direction cross to the predetermined direction of the first nozzle array; and a moving mechanism for relatively moving the first nozzle array, the second nozzle array, and the medium in the moving direction. Here, when a plurality of dot arrays disposed along the moving direction is formed in a direction cross to the moving direction with a predetermined interval therebetween by using the nozzles belonging to the first nozzle array, and a plurality of dot arrays disposed along the moving direction is formed in a direction cross to the moving direction with a predetermined interval therebetween by using the nozzles belonging to the second nozzle array, the dot arrays are formed by a specific first nozzle among the nozzles belonging to the first nozzle array and a specific second nozzle among the nozzles belonging to the second nozzle array, and have a length different from the dot arrays formed by the other nozzles. | 02-04-2010 |
20100033525 | INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - In an ink jet printing apparatus including a plurality of nozzle arrays, if a print position displacement between the nozzle arrays is adjusted, it is possible to perform high-speed printing at the time of performing a printing operation using only a single nozzle array. Specially at the time of changing a printing state of using a first nozzle array and a second nozzle array into a printing state of using the first nozzle array only, a conveying amount of the printing medium is changed in accordance with the displacement of the printing medium. | 02-11-2010 |
20100033526 | PRINTING APPARATUS AND PRINTING METHOD - A multipass printing is performed by setting the print permission ratios, predetermined for the nozzles in adjoining first and second blocks, in a way that satisfies the following conditions (i) and (ii). (i) The print permission ratio in the boundary section between the first and second blocks represents a value between the print permission ratio in the non-boundary section of the first block and that of the second block. (ii) The print permission ratios in the non-boundary sections of the first and second blocks are each set substantively constant. This arrangement allows the print permission ratio to be adjusted among nozzle blocks, thus satisfying the condition that the print permission ratio in a boundary between adjoining nozzles blocks does not change sharply and that the print permission ratio is substantively constant in each of the nozzle blocks. It is possible to suppress “interband variations”, “seam lines” and “intraband variations” coincidentally. | 02-11-2010 |
20100039466 | PRINTING DEVICE AND PRINTING METHOD - A printing device includes a first nozzle column in which nozzles discharging liquid to a medium are arranged in a line in a predetermined direction, a second nozzle column in which nozzles discharging liquid to the medium are arranged in the predetermined direction, in which the first and second nozzle columns are arranged in a line in an intersecting direction with respect to the predetermined direction, a control portion which causes the first nozzle column and the second nozzle column to discharge the liquid to the medium while moving the first and second nozzle columns and the medium relatively to each other in a moving direction, in which the control portion forms a certain correction pattern composed of a first pattern formed by the first nozzle column and positioned on one side in the intersecting direction with respect to the moving direction and a second pattern formed by the second nozzle column and positioned on the other side in the intersecting direction with respect to the moving direction in parallel with the first pattern, and the correction pattern forms another correction pattern in which the distance between the second side end of the first pattern and the first side end of the second pattern in the intersecting direction with respect to the moving direction is different from that in the certain correction pattern. | 02-18-2010 |
20100039467 | INKJET PRINTER SYSTEM HAVING EQUALISED CONTROL OF DIFFERENT NOZZLE COUNT PRINTHEAD ICS - An inkjet printer system is provided having a printhead and controller. The printhead has a row of inkjet nozzles for printing one ink color formed by adjacent inkjet nozzle rows of adjacent integrated circuits. Each integrated circuit has a different number of inkjet nozzles in the respective inkjet nozzle row. The controller is configured to transfer print data to each of the integrated circuits at a rate proportional to the relative number of inkjet nozzles so that the print data is transferred to each of the integrated circuits in equal time. | 02-18-2010 |
20100045719 | INK JET PRINT HEAD, INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - While the print head is reduced in size, the adverse effect of air flows produced by ink droplets as they are ejected from a small number of ejection opening arrays is minimized. A small number of first ejection opening arrays eject one of three primary colors—cyan, magenta and yellow—, and a large number of second and third ejection opening arrays eject the remaining two primary colors. A fourth ejection opening array, disposed between the first ejection opening array and second or third ejection opening array. | 02-25-2010 |
20100053245 | High speed dual pass ink jet printer - A method is disclosed. The method includes performing a first print pass to print a first data point on a medium using a first set of ink jet nozzles and performing a second print pass to print the first data point on the medium with a second set of ink jet nozzles. | 03-04-2010 |
20100053246 | FLUID EJECTING APPARATUS AND METHOD OF EJECTING FLUID - The first head includes first nozzle rows each having a nozzle for ejecting a fluid of a first color and a nozzle for ejecting a fluid of a second color lined up in a color order in a cross direction. The second head includes second nozzle rows each having the two nozzles lined up in a color order in the cross direction. The controller controls a nozzle to dispose a plurality of color-overlapped dots to form a raster line, such that a ratio of A1 to “A1+A2” is larger than a ratio of B1 to “B1+B2” to form the raster line, where A1 and A2 donate amounts of a fluid of the first color from the first and second nozzle rows, respectively, and B1 and B2 donate amounts of a fluid of the second color from the first and second nozzle rows, respectively. | 03-04-2010 |
20100053247 | PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus that prints an image on a print medium using special glossy ink and color ink, the printing apparatus includes a print head including a plurality of special glossy ink nozzles for ejecting the special glossy ink and a plurality of color ink nozzles for ejecting the color ink, a print unit that drives the print head, an obtaining part that obtains image data, a print controller that prints the obtained image data on the print medium by controlling the print head and the print unit. In a case of printing the obtained image data on the special glossy region, the print controller allows a group of the special glossy ink nozzles to be offset from a group of the color ink nozzles in the sub-scanning direction by a predetermined interval, and then performs the printing by ejecting the special glossy ink and the color ink at timings different from each other. In a case of printing the obtained image data on the dedicated color region, the print controller uses a relatively large number of the color ink nozzles as compared with a number of the color ink nozzles used when the special glossy region is printed. | 03-04-2010 |
20100060684 | Jet performance - Among other things, for ink jetting, a system includes a printhead including at least 25 jets and an imaging device to capture image information for all of the jets simultaneously, the captured image information being useful in analyzing a performance of each of the jets. | 03-11-2010 |
20100060685 | INKJET RECORDING SYSTEM AND INKJET RECORDING METHOD - An inkjet recording system including a separation unit configured to obtain separated data which corresponds to each of a plurality of nozzle arrays from input image data, a gradation correction unit configured to perform gradation correction by one-dimensional conversion on the separated data obtained by the separation unit, and a quantization unit configured to quantize the data on which the gradation correction is performed by the gradation correction unit to generate the recording data, wherein the separation unit obtains the separated data so that first separated data and second separated data corresponding to at least a pair of nozzle arrays for adjusting an effect of an air current have a same value, and the gradation correction unit performs different gradation correction on the first separated data and the second separated data which have the same value. | 03-11-2010 |
20100060686 | PRINTING METHOD, PRINTING APPARATUS, PRINTING CONTROL APPARATUS AND STORAGE MEDIUM - A printing method includes: preparing a printing apparatus provided with a carry unit that carries a medium in a carrying direction, and a plurality of nozzle groups that have respectively a plurality of nozzles lined up in the carrying direction; and printing an image to be printed on the medium by alternately repeating a dot forming process for forming dots on the medium by ejecting ink from each nozzle of a plurality of the nozzle groups that move in a moving direction, and a carrying process for carrying the medium in the carrying direction, and forming a plurality of rows of dots, lined up in the carrying direction, that are configured by a plurality of dots lined up in the moving direction, wherein in a case a certain row of dots is formed by a plurality of the nozzles, if, of a plurality of the nozzles that form the certain row of dots, the number of nozzles of a certain nozzle group is smaller than, of a plurality of the nozzles that form the certain row of dots, the number of nozzles of another nozzle group, each nozzle of the certain nozzle group forms a larger number of dots configuring the certain row of dots than each nozzle of the another nozzle group. | 03-11-2010 |
20100066777 | INKJET PRINTER - A recording head having a plurality of recording elements arranged at a prescribed pitch in a first direction. A scanning unit is configured to move the recording head back and forth in a second direction perpendicular to the first direction. A setting unit is configured to set process pixels in an input image by rendering at least one of the plurality of recording elements disabled so as not to form dots and at least another one of the plurality of recording elements enabled to allow dots to be formed in each of a plurality of columns of a recording medium. A dot data generating unit is configured to generate dot data by applying a weight matrix to the density data of the process pixel. The dot data is applied to the recording head to form dots on the recording medium. | 03-18-2010 |
20100110131 | PRINTER AND PRINTING METHOD - The present invention is intended to prevent appearance of streaks in head scanning direction at the joint of print data of the image to be printed. Print data composed of a multiplicity of dot information is supplied to a printing head having a plurality of dot forming elements arrayed along a sub-scanning direction. The printing head and the printing medium relatively move in main scanning direction and sub-scanning direction each other, and an image is printed on the surface of the printing medium. In the print data supplied by every main scanning action of the printing head, a deformed data portion of concave and convex shapes of waveform are formed, for example, so that dots may not be arrayed in parallel continuously in the main scanning direction of the printing head, at the joint of the ends of the sub-scanning direction. The undulation profile of this waveform is set in an ambiguous state, and the ambiguous state of the profile is not a state of a continuous profile line when the printed profile is observed visually. | 05-06-2010 |
20100118076 | LIQUID EJECTING APPARATUS - Provided is a liquid ejecting apparatus including: a first nozzle array in which a plurality of nozzles for ejecting a liquid is lined up in a predetermined direction; a second nozzle array in which a plurality of nozzles for ejecting a liquid is lined up in the predetermined direction; and a controller which determines whether or not correction is performed based on a ruled-line direction and the number of dots in a ruled-line width direction, when a ruled line is printed by forming dots by the first nozzle array and then forming dots by the second nozzle array. | 05-13-2010 |
20100118077 | PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus performs printing on a printing medium by moving a print head relative to the printing medium in a main scanning direction, which is a width direction of the printing medium, and a sub-scanning direction that intersects the main scanning direction. The printing apparatus includes a print head that includes a plurality of nozzles configured to eject ink; an acquisition unit that acquires image data; and a dot forming unit that controls the print head so as to eject the ink to form dots corresponding to the image data on the printing medium. When suppression dots, which are dots formed to suppress bleeding, are formed on the printing medium, the dot forming unit controls the print head so that ink corresponding to the suppression dots is ejected from preceding nozzles arranged to eject ink to the printing medium earlier than other nozzles of the plurality of nozzles. | 05-13-2010 |
20100118078 | LIQUID JET APPARATUS AND PRINTING APPARATUS - A liquid jet apparatus includes a plurality of nozzles, an actuator provided for each nozzle and connected to the respective nozzle, and a drive unit that applies a drive signal to the actuator, wherein the drive unit includes: a drive waveform signal generation unit that generates a drive waveform signal for controlling the operation of the actuator, a modulator unit that pulse-modulates the drive waveform signal to produce a modulated signal, a digital power amplifier for power-amplifying the modulated signal to produce an amplified signal, a low-pass filter for smoothing the amplified signal and supplying the actuator with the drive signal, and a carrier frequency adjusting unit that adjusts a carrier frequency of the pulse modulation by the modulator unit in accordance with the number of actuators to be driven. | 05-13-2010 |
20100149240 | PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus which prints by discharging ink droplets from a first nozzle array and a second nozzle array based on print data using a printhead including the first nozzle array and the second nozzle array for discharging ink droplets of the same color and different discharge amounts, the apparatus comprising: a specifying unit configured to specify a discharge failure nozzle in the first nozzle array and the second nozzle array; and a controller configured to assign print data corresponding to the discharge failure nozzle specified by the specifying unit to a nozzle of a nozzle array different from a nozzle array to which the discharge failure nozzle belongs, out of the first nozzle array and the second nozzle array. | 06-17-2010 |
20100149241 | IMAGE RECORDING APPARATUS - An image recording apparatus is provided with at least one recording head having a nozzle array configured by a plurality of nozzles and a nozzle array drive unit for driving the nozzle array, and a conveyance mechanism for loading and conveying a record medium for a recording process using ink conveyed upstream from a conveyance route and jetted from the plurality of nozzles, and includes: at least a nozzle array drive control unit controlling the nozzle array drive unit; and a temperature measuring unit detecting the temporarily of the nozzles. With the configuration, the nozzle array drive control unit measures a temperature of the nozzles, and performs the process of heating ink by performing a weak vibration so that the ink cannot be jetted when the measured temperature is lower than a predetermined temperature. | 06-17-2010 |
20100165028 | CODING AND MARKING PRINTING SYSTEM - A method and device for coding and marking printing including defining a print image in dot formation of various sizes and locations; determining and providing a set of individual print control instructions for individually controlling a plurality of dot image print head nozzles to form the defined print image at absolute dot positions; and undertaking the individual control instructions to provide a printed image on a printing substrate corresponding to the defined print image, whereby the system allows for calculated adjustment of each dot position without computational limitation during the printing cycle. | 07-01-2010 |
20100171780 | Rapid Ink-Charging Of A Dry Ink Discharge Nozzle - The present teachings relate to methods and apparatus for depositing one or more materials (e.g., one or more films, such as one or more solids) on one or more substrates, which may form part of an OLED or other type(s) of display. In some embodiments, the disclosure relates to apparatus and methods for depositing ink on one or more substrates. The apparatus can include, for example, one or more chambers for receiving ink, and plural orifices configured in the one or more chambers which are adapted for ejecting droplets of the ink; a discharge nozzle comprising an array of micro-pores (e.g., configured in a rectangular array), with each micro-pore having an inlet port and an outlet port, and the discharge nozzle receiving plural quantities (e.g., droplets) of ink from the chamber(s) via the orifices at the inlet ports and dispensing the ink from the outlet ports. The droplets of ink can be received at unique, spaced-apart locations on the inlet ports of the discharge nozzle. In some embodiments, a single liquid ink-holding chamber, which includes plural orifices (e.g., three), receives ink in liquid form having a plurality of suspended particles, and droplets of the ink are ejected substantially simultaneously from the chamber to respective, spaced-apart locations on the discharge nozzle; and the discharge nozzle evaporates the carrier liquid and deposits the solid particles on one or more substrates. | 07-08-2010 |
20100201730 | IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND HEAD DEVICE - An image forming apparatus may include a head having: nozzles which eject ink for one pixel onto a recording medium; pressurization chambers coupled to the nozzles, and a pressure application portion. The pressure application portion may execute an ejection operation and/or a swinging operation. The ejection operation may include ejecting the ink from the nozzles. The swinging operation may enable swinging of meniscus of the ink in the nozzles and disable ink ejection. In some embodiments, a print control portion may control the ejection operation in the pressure application portion, and a swing control device may control the swing operation. In some embodiments, the swing operation may be directed at specific nozzles based upon image data scheduled to be printed. | 08-12-2010 |
20100201731 | DOT PRINTING SYSTEM, DOT PRINTING METHOD AND COMPUTER PROGRAM - A printing apparatus includes an extracting processor that performs an extracting process in which dots are not printed at the main scanning passes performed once or more and less than N times, in a case that the dot printing is completed with respect to a first main scanning line by the main scanning passes performed N times (N is an integer of 2 or more), wherein the extracting processor performs the extracting process such that a first main scanning pass number indicating an order of the main scanning passes in which dots are printed with respect to the first main scanning line and a second main scanning pass number indicating an order of the main scanning pass in which dots are printed with respect to the second main scanning line adjacent to the first main scanning line in the sub-scanning direction, approach each other. | 08-12-2010 |
20100207980 | METHOD FOR ARRAYING HEAD ASSEMBLIES OF INKJET PRINTER AND APPARATUS FOR PERFORMING THE SAME - A method for arraying head assemblies of an inkjet printer and an apparatus used for the method that can reduce a period of time taken to array the head assemblies after the head assemblies are mounted in the inkjet printer by adjusting height and rotation center of each of the head assemblies before the head assemblies are mounted in the inkjet printer, and can improve array precision of the head assemblies by adjusting a position in the X direction and a rotation angle of each of the head assemblies having already adjusted height and rotation center after the head assemblies are mounted in the inkjet printer, by adjusting a position in the Y direction of each of the head assemblies and can control an ink spray time. The method includes setting a reference height and a reference rotation center; adjusting a height and a rotation center of a head coupled to a head assembly using the reference height and the reference rotation center; mounting the head assembly in the inkjet printer; and adjusting a position of the head assembly and a rotation angle of the head assembly. | 08-19-2010 |
20100214336 | RECORDING CONTROL SYSTEM - In a recording control system, representative pixels are set as a part of the pixels in the detection region. The determining unit determines whether a pixel value of the selected at least one representative pixel falls within a first pixel value range. The recording head ejects ink based on pixel data in the first region while scanning in the first direction. The recording head ejects ink based on pixel data in the second region adjacent to the first region while scanning in the first direction when the pixel value of the selected at least one representative pixel falls within the first pixel value range. The recording head ejects ink based on pixel data in the second region while scanning in the second direction when the pixel value of at least one of the selected at least one representative pixel does not falls within the first pixel value range. | 08-26-2010 |
20100214337 | PRINTER WITH RESOLUTION REDUCTION BY NOZZLE DATA SHARING - A printer is shown that can selectively reduce its print resolution by sharing print for one nozzle in the nozzle array between several nozzles. Each nozzle has an ejection aperture and a corresponding actuator for ejecting printing fluid through the ejection aperture. A print engine controller sends print data to the array of nozzles in accordance with a designated print job. During use, the print engine controller can selectively reduce the print resolution by apportioning print data for a single nozzle between at least two nozzles of the array. This recognizes that some print jobs do not require the best resolution—a lower resolution is completely adequate for the purposes of the document being printed. This serves to extend the operational life of all the nozzles. | 08-26-2010 |
20100231624 | PRINTHEAD SYSTEM FOR MODULATING PRINTHEAD PEAK POWER REQUIREMENT USING REDUNDANT NOZZLES - A printhead system comprising an inkjet printhead and a printer controller for supplying dot data to the printhead is provided. The printhead comprises a plurality of first nozzles and a plurality of second nozzles supplied with a same colored ink. The first nozzles and second nozzles are configured in a plurality of sets, wherein each set of nozzles comprises one first nozzle and one corresponding second nozzle. Each nozzle in a set is configurable by the printer controller to print a dot of the ink onto a substantially same position on a print medium. The printer controller is programmed to supply dot data such that the first nozzles and the second nozzles each contribute dots to a line of printing. | 09-16-2010 |
20100231625 | PRINTHEAD HAVING CONTROLLED NOZZLE FIRING GROUPING - A printhead is provided having a plurality of rows of nozzles, with the nozzles in each row being grouped into fire groups, and a controller configured to fire the nozzles of each fire group by outputting firing pulses to the nozzles. The controller sets the number of fire groups in each row based on the width of the firing pulses and a predetermined length of time for firing all of the nozzles of that row. | 09-16-2010 |
20100245426 | Ink-jet printing method and ink-jet printing system for multi-definition printing - The present invention relates to a method of addressing the nozzles of a printhead; a group of nozzles of a print column of the printhead are staggered and are arranged according to a spatial order, e.g. N | 09-30-2010 |
20100245427 | IMAGE FORMING DEVICE AND IMAGE FORMING METHOD - An image forming device is provided. The image forming device includes: a liquid drop jetting head having liquid chambers including jetting ports that jet liquid drops onto a recording medium, and a flow path that supplies or recovers liquid to or from the respective liquid chambers; and a control component controlling the liquid drop jetting head so that, among a plurality of and at least some of the jetting ports at a same flow path, jetting ports that jet liquid drops so that there becomes a suppressed recording rate that is suppressed as compared with a predetermined standard recording rate in accordance with image information expressing an image to be formed on the recording medium, and jetting ports that jet liquid drops so that there becomes a promoted recording rate that is promoted as compared with the standard recording rate, are neighboring. | 09-30-2010 |
20100245428 | LIQUID EJECTING APPARATUS AND FLYING CURVE DETECTING METHOD - A liquid ejecting apparatus includes a liquid ejecting head having a nozzle row including nozzles that eject a liquid on an ejecting target medium. The liquid ejecting head moves with respect to the ejecting target medium in a main scanning direction. Liquid is ejected to form test patterns on the ejecting target medium, in which the minimum interval between a plurality of dots formed by ejecting the liquid in the main scanning direction is set as a reference interval. A dot group is formed, in which one or more dots line up at the reference interval in the main scanning direction. A line part is formed, in which a plurality of the dot groups is formed at an interval larger than the reference interval in the main scanning direction. A plurality of the line parts is formed in a sub-scanning direction intersecting the main scanning direction. | 09-30-2010 |
20100253724 | PRINTING USING INKS OF PLURAL COLORS INCLUDING WHITE COLOR - Disclosed is a printing apparatus that performs printing by using inks of plural colors including a white color, which includes a first nozzle group that ejects an ink of one color including a white color and at least one color other than the white color, and a second nozzle group that ejects the inks of plural colors. An image formed by the first nozzle group is an undercoat layer or an overcoat layer of an image formed by the second nozzle group. | 10-07-2010 |
20100253725 | Liquid Ejection Apparatus and Method of Ejecting Liquid Using the Same - A target medium is placed on a first region. A liquid absorbing member is placed in at least a second region which is adjacent to the first region. A liquid ejection head is movable above the first region and the second region, and provided with a plurality of liquid ejecting sections from which liquid droplets are ejected. Each of the liquid ejecting sections is configured so as to eject at least one liquid droplet toward the target medium when it is placed above the first region, and to flush a prescribed amount of liquid toward the liquid absorbing member when it is placed above the second region. The liquid ejecting sections are arranged such that at least one of the liquid ejecting sections can be placed above the first region when another one of the liquid ejecting sections is placed above the second region. | 10-07-2010 |
20100253726 | INKJET PRINTING APPARATUS AND PRINTHEAD DRIVING METHOD - An object of this invention is to decrease the amount of ink mist while keeping the image quality high in inkjet printing. To achieve this object, printing is performed by time-divisionally driving, for each block, a plurality of nozzles for discharging ink. In preliminary discharge, the nozzles are so driven as to set the driving time interval between neighboring nozzles to the first time interval. In printing, the nozzles are so driven as to set the driving time interval between neighboring nozzles to the second time interval longer than the first time interval. | 10-07-2010 |
20100277529 | JET DIRECTIONALITY CONTROL USING PRINTHEAD NOZZLE - A method of printing and an apparatus for controlling the directionality of liquid emitted from nozzles of a printhead are provided. Example embodiments of the apparatus include directionality control of liquid jets or liquid drops using a liquid jet directionality control mechanism. Example embodiments of the liquid jet directionality control mechanism include asymmetric energy application device configurations, nozzle geometry configurations, liquid delivery channel geometry configurations, or combinations of these configurations. | 11-04-2010 |
20100277530 | DENSITY ERROR CORRECTION - A method for density error correction is disclosed. In one embodiment, the method includes a) calculating an average density error for at least one row of an image considering density errors for printhead elements employed to print the at least one row, and a number of passes that the printhead elements will utilize to print the at least one row, b) calculating a density error correction value for the at least one row considering the average density error, and c) applying the density error correction value to adjust ink flow from the printhead elements while printing the at least one row. | 11-04-2010 |
20100277531 | PRINTER HAVING PROCESSOR FOR HIGH VOLUME PRINTING - A printer is provided having a printhead having a plurality ejection integrated circuits each having a plurality of ejection nozzles on a wafer substrate, and a processor for processing print data and controlling operation of at least 10,000 of the ejection nozzles of the ejection integrated circuits based on the processed print data. | 11-04-2010 |
20100277532 | PRINTHEAD ASSEMBLY HAVING INTERCONNECTED CONTROLLERS - A printhead assembly is provided having a support member, a plurality of ejection integrated circuits supported by the support member, and a plurality of controllers mounted on respective printed circuit boards supported by the support member. Each ejection integrated circuit has a plurality of ejection nozzles. Each controller is connected to a plurality of the ejection integrated circuits via individual flexible printed circuit boards and to the other controllers. Each controller is configured to control operation of at least 10,000 of the ejection nozzles of the connected ejection integrated circuits. | 11-04-2010 |
20100283811 | INKJET PRINTER - The invention describes an inkjet printer with a printing bed for displacing a print medium in a forward feed direction and a print head carriage disposed above the printing bed for displacing at least one print head unit in a transverse feed direction, a print head unit with at least one print head being provided for every colour to be printed, each print head having at least one nozzle row oriented in the forward feed direction of the print medium. The nozzles of the at least one nozzle row of the print head unit are disposed offset from one another by a nozzle distance D by reference to the forward feed direction. Another print head unit is provided, which has nozzles in at least one nozzle row disposed offset from one another by a second nozzle distance d by reference to the forward feed direction of the print medium, the ratio derived from the nozzle distance D and the second nozzle distance d being a rational number and greater than 1. | 11-11-2010 |
20100289842 | PRINTING METHOD, PRINTING SYSTEM AND METHOD FOR DETERMINING CORRECTION VALUE - A medium is carried to a predetermined position in a carrying direction. A first pattern is formed on the medium with nozzles on the carrying direction upstream side of a nozzle row constituted by a plurality of nozzles lined up at predetermined intervals. After forming the first pattern, the medium is carried in the carrying direction by a target carry amount that is shorter than the length in the carrying direction of the nozzle row. Along with forming on the medium a second pattern that forms a boundary with the first pattern with nozzles on the carrying direction downstream side of the nozzle row, a third pattern is formed on the medium with the nozzles on the carrying direction upstream side of the nozzle row. After forming the second pattern, the medium is carried in the carrying direction by a target carry amount that is shorter than the length in the carrying direction of the nozzle row so that a carry amount of the medium after forming the first pattern is longer than the length in the carrying direction of the nozzle row. A fourth pattern that forms a boundary with the third pattern is formed on the medium with the nozzles on the carrying direction downstream side of the nozzle row. | 11-18-2010 |
20100309240 | RECORDING APPARATUS AND RECORDING POSITION ADJUSTMENT METHOD - An apparatus records a first pattern used for correcting a shift in positions recorded by a plurality of nozzle arrays and a second pattern used for detecting a conveyance error that occurs when the first pattern is recorded, and changes a correction value according to the detected conveyance error. | 12-09-2010 |
20100315456 | PRINTING APPARATUS AND PRINTING METHOD - In an ink jet printing apparatus for scanning a print medium with a printing head and printing an image thereon, the printing head includes a plurality of ink ejection port arrays. The ink ejection ports in each of the arrays are arranged in a direction crossing a scanning direction of the printing head relative to the print medium. An allowable recording rate given to at least one of the ejection port arrays behind an ejection port array located at the front in the scanning direction is set lower than that given to the one located at the front. As a result, a printing apparatus capable of suppressing a throughput speed thereof and adhesion of ink mists to a formation face of the ejection ports can be provided. | 12-16-2010 |
20100321433 | MULTI-CHIP PRINTHEAD ARRAY WITH REDUCED NOZZLE OFFSET - A pagewide array of inkjet printheads arranged to reduce nozzle offset. The row of nozzles of each printhead are formed adjacent an edge of the semiconductor chip. Each alternate printhead chip is rotated 180 degrees with regard to its neighbor, thereby reducing the nozzle offset. A smaller nozzle offset minimizes the dot displacement error should the print medium be skewed with respect to the array of printheads. | 12-23-2010 |
20100321434 | PRINTING APPARATUS AND IMAGE PROCESSING METHOD - It is possible to implement a calibration process that corrects density unevenness even in the case where the utilization ratios of the plurality of nozzle arrays used in printing differ. Concretely, making use of a print head provided with a plurality of nozzle arrays ejecting ink of the same color, it is a printing apparatus that performs printing, based on print data, by ejecting ink from the nozzles provided in the nozzle arrays, and has a print density characteristic acquisition unit, which acquires the print density characteristics of each of the nozzle arrays, and a nozzle array contribution ratio establishing unit, which establishes the printing ratios of the nozzle arrays that print a predetermined printing area, and does color shift correction processing of the print data based on each of the print density characteristics of the nozzle arrays and the nozzle array contribution ratios. | 12-23-2010 |
20100328383 | RECORDING APPARATUS AND PATTERN FORMING METHOD - A pattern forming method that includes forming a pattern for detecting defective discharges of a plurality of ink discharging nozzles and recording a first dot pattern with the plurality of ink discharging nozzles. The pattern forming method also includes recording a second dot pattern to be adjacent to at least one side of the first dot pattern in the predetermined direction. | 12-30-2010 |
20100328384 | INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD - An inkjet printing apparatus and an inkjet printing method are provided which can minimize air current disturbances that occur between the print head and the print medium and also minimize density unevenness caused by mask patterns. For this purpose, the 2-pass printing is performed such that the high printing ratio region and the low printing ratio region are alternated every pixel in the nozzle-arrayed direction and that adjoining groups of high printing ratio regions are separated from one another by a group of low printing ratio regions that forms a passage wide enough for air currents to pass through. | 12-30-2010 |
20100328385 | INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - The present invention provides an ink jet printing apparatus configured to allow the ejection performance of a print head with a large number of nozzles densely arranged therein to be kept in a favorable condition by preliminary ejection and to enable degradation of images caused by the preliminary ejection to be alleviated. Preliminary ejection data generation unit is provided which generates preliminary ejection data designed to allow ink not contributing to image printing to be ejected through nozzles | 12-30-2010 |
20110007107 | High Speed High Resolution Fluid Ejection - The first plurality of nozzles and the second plurality of nozzles in a fluid ejection system are arranged in a plurality of nozzle pairs, each nozzle pair of the plurality of nozzle pairs including a first nozzle from the first plurality of nozzles and an associated second nozzle from the second plurality of nozzles, the first nozzle and associated second nozzle of each nozzle pair spaced apart in a second direction perpendicular to a first direction, the first direction being the direction of movement of a print media, by greater than zero and less than the pixel pitch p and spaced apart in the first direction. A controller is configured to cause the first nozzle and the second nozzle of each nozzle pair to deposit droplets at the same pixel in a line of pixels. | 01-13-2011 |
20110012949 | PRINTING 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. | 01-20-2011 |
20110012950 | ELEMENT BOARD FOR PRINTHEAD, AND PRINTHEAD HAVING THE SAME - In a printhead element board including a plurality of printing elements which align in a predetermined direction, driving circuits which drive the printing elements, and an element selection circuit which selects printing elements within each group for each group having a predetermined number of adjacent printing elements, a plurality of element selection circuits are laid out adjacent to the driving circuits of the respective groups. With this layout, even if the number of printing elements increases, only the length in the printing element array direction increases without increasing the length in a direction perpendicular to the printing element array direction. | 01-20-2011 |
20110018923 | IMAGE FORMING SYSTEM - An image forming system configured to eject ink onto a sheet conveyed in a first direction including a first head including a plurality of first ejection ports configured to eject the ink; a second head including a plurality of second ejection ports configured to eject the ink; an input part configured to be input ejection port information on the plurality of first ejection ports and the plurality of second ejection ports; and a controller configured to control ejection of the ink from the first ejection ports and the second ejection ports based on the ejection port information. | 01-27-2011 |
20110025742 | PRINT ENGINE WITH INK SUPPLY CONDUITS EXTENDING FROM A LONG SIDE OF ELONGATE PRINTHEAD CARRIAGE - A print engine for an inkjet printer which has a media path extending past a printhead assembly along a paper axis, has an elongate printhead carriage extending transverse to the paper axis, a series of interfaces for supplying ink to respective printhead modules spaced along the printhead carriage such that during use, the printhead modules span the media path and ink conduits connected to the interfaces for feeding ink to the printhead modules. The printhead carriage has a series formations to position the ink conduits such that they all extend away from the interfaces in a direction transverse to the long axis to a common side of the printhead carriage. | 02-03-2011 |
20110037799 | PRINTING APPARATUS AND PRINTING METHOD - Degradation in image quality due to disturbance in landing positions of satellites is suppressed. When scanning and printing with a printing head which has a first nozzle array ejecting relatively large ejection amount of ink, a second nozzle array arranged on one side of the first nozzle array in a scan direction and a third nozzle array arranged on the other side of the first nozzle array in the scan direction, the second and third nozzle arrays ejecting a relatively small ejection amount of ink with the same color, a printing rate of one of the second and third nozzle arrays located at the front side in the scan direction is controlled lower than that of the other located at the back side. | 02-17-2011 |
20110037800 | FLUID EJECTING APPARATUS AND FLUID EJECTING METHOD - A fluid ejecting apparatus includes a first nozzle array in which nozzles that eject a first fluid are arrayed in a predetermined direction; a second nozzle array arranged beside the first nozzle array in a moving direction orthogonal to the predetermined direction and in which nozzles that eject a second fluid are arrayed in the predetermined direction; and a control section that repeatedly performs operation for ejecting the fluids from the nozzles while relatively moving the first nozzle array, the second nozzle array, and a medium in the moving direction and operation for relatively shifting a relative position between the first nozzle array, the second nozzle array, and the medium towards one side in the predetermined direction. When performing normal image forming operation, the control section relatively shifts the relative position between the first nozzle array, the second nozzle array, and the medium towards the one side in the predetermined direction by a predetermined transporting distance. When forming a second image using the second fluid over a first image formed using the first fluid, the nozzles used for forming the second image are located towards the one side in the predetermined direction relative to the nozzles used for forming the first image. When performing image forming operation near an edge of the medium, a non-ejection nozzle included in the nozzles and from which the fluids are not ejected is located towards the one side in the predetermined direction relative to the nozzles used for forming the first image and is located towards the other side in the predetermined direction relative to the nozzles used for forming the second image. A length, in the predetermined direction, of a region to which the non-ejection nozzle belongs is an integral multiple of the predetermined transporting distance. | 02-17-2011 |
20110043560 | Fluid Ejecting Apparatus and Fluid Ejecting Method - A fluid ejecting apparatus includes: a first nozzle line that includes a plurality of first nozzles that are aligned in a predetermined direction, first fluid being ejected from the first nozzles; a second nozzle line that includes a plurality of second nozzles that are aligned in the predetermined direction, second fluid being ejected from the second nozzles; a movement mechanism that moves the first nozzle line and the second nozzle line relative to a target medium in a movement direction, the movement direction being orthogonal to the predetermined direction; a transportation mechanism that transports the target medium relative to the first nozzle line and the second nozzle line in the predetermined direction; a controlling section that performs control for repeating image formation operation and transportation operation, the image formation operation being operation for ejecting the first fluid from the first nozzles and ejecting the second fluid from the second nozzles while moving the first nozzle line and the second nozzle line in the movement direction by means of the movement mechanism, the transportation operation being operation for transporting the target medium relative to the first nozzle line and the second nozzle line in the predetermined direction by predetermined transportation amount by means of the transportation mechanism; and a group of nozzles that are not the first nozzles nor the second nozzles, wherein the image formation operation includes a certain image formation operation and another image formation operation, the controlling section performs control for forming a first image by using the first fluid and the second fluid in the certain image formation operation, the controlling section performs control for forming a second image on the first image by using at least the second fluid in the another image formation operation after lapse of time for drying the first image, the first nozzles and the second nozzles that are used for forming the first image are located upstream of the second nozzles that are used for forming the second image in the predetermined direction, the group of nozzles that are not the first nozzles nor the second nozzles are located downstream of the first nozzles and the second nozzles that are used for forming the first image in the predetermined direction, the group of nozzles that are not the first nozzles nor the second nozzles are located upstream of the second nozzles that are used for forming the second image in the predetermined direction, length of an area where the group of nozzles that are not the first nozzles nor the second nozzles are located in the predetermined direction is an integral multiple of the predetermined transportation amount, and the group of nozzles that are not the first nozzles nor the second nozzles do not eject any fluid. | 02-24-2011 |
20110074849 | LIQUID DISCHARGE DEVICE - A liquid discharge device is provided with a printed circuit board. The printed circuit board is formed with a connection area where a plurality of connection terminals to be connected with a plurality of input terminals of a discharge head, and a pair of extending portions oppositely extending from the connection area, the pair of extending portions being bent with respect to the connection area to form a C-like cross section so that end portions of the pair of extending portions face each other. A plurality of positioning members configured to position the end portions of the pair of extending portions so that the end portions of the extending portions face each other, the plurality of positioning members being configured to be movable along the surface of the liquid discharge head with maintaining a positional relationship among the plurality of positioning members. | 03-31-2011 |
20110074850 | CONTROLLER FOR PRINTHEAD HAVING ARBITRARILY JOINED NOZZLE ROWS - A controller for a printhead is provided. The printhead has rows of printing nozzles with each nozzle row formed by adjacent sub-rows of printing nozzles of adjacently disposed printhead modules. Each nozzle row us arranged such that the join of the respective adjacent sub-rows is arbitrarily located relative to the other nozzle rows thereby forming an arbitrarily shaped join region. The controller being configured to determine the arbitrary shape of the join region and to supply dot data to the printhead which compensates for the determined arbitrary shape. | 03-31-2011 |
20110141173 | FLUID EJECTING APPARATUS AND FLUID EJECTING METHOD - An apparatus includes: a first nozzles for ejecting a first fluid are lined up in a predetermined direction; a second nozzles for ejecting a second fluid are lined up in the predetermined direction; and a control unit performs an ejecting operation of ejecting fluid from the nozzles, wherein the control unit forms an image on a medium in one of a first mode of forming a main image with the first fluid and a second mode of forming the main image and a background image with the second fluid to be overlapped, forms the main image using a certain nozzle group in the first nozzles when the main image is formed in the first mode, and forms the main image using the same nozzle group as the certain nozzle group when the main image is formed in the second mode. | 06-16-2011 |
20110141174 | FLUID EJECTING APPARATUS AND FLUID EJECTING METHOD - An apparatus includes: a first nozzles for ejecting first fluid are lined up in a predetermined direction; a second nozzles for ejecting second fluid are lined up in a movement direction; and a control unit which sets a first method of when formation of a main image with the first fluid by a nozzle group of a part of the first nozzle row and formation of a background image with the second fluid by a nozzle group of a part of the second nozzles are performed to overlap the main image and the background image with each other on the medium, in a case where one of the nozzle group of the part of the first nozzles and the nozzle group of the part of the second nozzles is positioned closer to the other direction side of the predetermined direction than the other nozzle group to perform the image formation on a predetermined area of the medium in advance of the other nozzle group. | 06-16-2011 |
20110148964 | RECORDING APPARATUS AND RECORDING SYSTEM - When a gradation mask is used to distribute image data to be recorded by overlapping portions in an overlapping head, color unevenness is generated in an image recorded by the overlapping portions due to a displacement in impact positions caused by an assembly error. As a result, accurate colorimetric measurement of patches recorded by the overlapping portion cannot be performed. To solve such a problem, a distribution ratio by which the image data is distributed to the overlapping portions is set to be approximately constant when recording a test pattern for performing color correction, as compared to when normally recording the image. | 06-23-2011 |
20110175957 | IMAGE FORMING APPARATUS, CONTROL METHOD THEREFOR, AND MEDIUM STORING PROGRAM - An image forming apparatus includes an ejection head having a plurality of nozzle arrays arranged in an orthogonal direction to an array direction thereof, a carriage on which the ejection head is loaded, and a moving unit that moves the carriage. The image forming apparatus further includes a control unit that controls the moving unit and the ejection head such that, when flushing is to be performed while the image is formed on a sheet as the carriage reciprocates, a liquid is ejected to an image forming region of the sheet from the plurality of nozzle arrays, the liquid is ejected to a first receiving area from a first nozzle array group disposed adjacent to an outward side, and the liquid is ejected to a second receiving area from a remaining second nozzle array group excluding the first nozzle array group and disposed adjacent to a homeward side. | 07-21-2011 |
20110187774 | PRINTING APPARATUS AND PRINTING METHOD - An inkjet printing apparatus and an inkjet printing method are provided which can correct, with high precision, print position deviations among a plurality of printing element arrays in each of a plurality of print modes that use different groups of printing elements in each printing element array. The adjustment values for the print position deviations between the first and second printing element arrays are differentiated between the high-speed mode and the high-quality mode. In the high-speed mode, all printing elements in the first and second printing element arrays are used. In the high-quality mode, a part of the printing elements in each of the first and second printing element arrays are used. Based on these adjustment values, the ink ejection timings of the first and second printing element arrays are adjusted. | 08-04-2011 |
20110187775 | RECORDING APPARATUS AND RECORDING METHOD - When a number of passes of multi-pass recording has been changed, a repetitive cycle of a drive pattern is changed, depending on change of feeding amount caused by change of the number of passes. Accordingly, the drive pattern is set to a size corresponding to the changed feeding amount. | 08-04-2011 |
20110216115 | PRINTING METHOD AND PRINTING APPARATUS - In the printing method, on a medium transported in a transport direction, while nozzle rows including a plurality of nozzles move in a scanning direction intersecting the transport direction, ink is ejected from the nozzles, and dots are formed to print an image. Coordinates of dots formed by nozzles of a nozzle row center portion and coordinates of dots formed by nozzles of nozzle row end portions are measured with respect to a ruled line printed in advance along the transport direction by ejecting ink from the plurality of nozzles, and an amount of deviation in the scanning direction among the coordinates is calculated. Pixel data corresponding to the dots formed by the nozzles of the nozzle row end portions among pixel data indicating unit elements forming an image are shifted in the scanning direction according to the amount of deviation, to perform printing. | 09-08-2011 |
20110221810 | PRINTING PROCESS OF FORMING TWO IMAGES ON PRINTING MEDIUM IN OVERLAPPING MANNER - A printing apparatus includes a controller forming an image on a printing-medium by repeating an image-forming-operation of allowing a plurality of nozzle-columns to be moved and allowing the plurality of nozzle-columns to eject ink and a transporting-operations of allowing the printing-medium to be transported. The controller forms a first-image by an image-forming-operation where the moving-direction of a nozzle-column is one direction in a second direction by using a first-image-nozzle-group configured with the nozzles included in the first-nozzle-column. In addition, the controller forms a second-image which is overlapped with the first-image by an image-forming-operation where the moving-direction of a nozzle-column is one direction and by an image-forming-operation where the moving-direction of the nozzle-column is the direction opposite to the one direction by using a second-image-nozzle-group configured with the nozzles of which positions in the first direction are different from those of the first-image-nozzle-group among the nozzles included in the second-nozzle-column. | 09-15-2011 |
20110221811 | PRINTING PROCESS OF FORMING TWO IMAGES ON PRINT MEDIUM IN OVERLAPPING MANNER - The printing apparatus includes a control-section for forming an image on a print-medium by repeating an image-formation-operation and a transport-operation. Through the image-formation-operation, a plurality of nozzle-arrays discharges an ink while a moving-mechanism moves the plurality of nozzle-arrays, and through the transport-operation, the print-medium is transported to the transport-mechanism. The control-section forms a first-image by using a nozzle group for the first-image. The nozzle-group for the first-image is formed of N nozzles included in a first-nozzle-array of the plurality of nozzle-arrays. In addition, the control-section forms a second-image, which overlaps with the first-image on the print-medium, by using a nozzle-group for the second-image. The nozzle-group for the second-image is formed of M nozzles among the nozzles included in the second-nozzle-array of the plurality of nozzle-arrays, and the position of the nozzle-group for the second-image is different from that of the nozzle-group for the first-image in a first-direction. | 09-15-2011 |
20110227978 | PRINTING APPARATUS, PRINTING METHOD AND COMPUTER PROGRAM PRODUCT - A printing apparatus that is an inkjet printing apparatus includes a print head that includes a plurality of nozzles that eject liquid droplets, and prints output data onto a recording medium in a plurality of scans, a storage unit including number of storage areas, the number being determined based on a scheme of the scans, an intermediate data generating unit that generates intermediate data corresponding to an image to be output in each of the scans of the print head from input image data, an intermediate data storing processing unit that stores the intermediate data in different storage areas of the storage unit corresponding to the respective scans of the print head, and an output data converting unit that converts the intermediate data stored in the storage unit into the output data, and sends the output data to the print head. | 09-22-2011 |
20110234670 | OPTIMIZATON OF DOT PLACEMENT FOR THERMAL DRIFT - A method of printing executes a software instruction using a print system controller to measure a vertical position of each row of an array of jets, having at least one offset subset of the array offset in a movement direction, adjusts timing of firing intervals for the offset subset such that the offset subset fire after a longer interval than other jets, and fires jets other than the offset subset at a predetermined firing interval. A print head has an array of transducers, an ink chamber to store ink arranged adjacent the array of transducers, and an array of jets arranged adjacent the ink chamber such that when selected ones of the array of transducers are activated, ink from the chamber exits a jet corresponding to the selected ones of the transducers, the array of jets having at least one subset of the array offset in a vertical direction relative to the other jets. A print system has a print head having an array of jets through which ink can be emitted, the array of jets having at least one subset of the array offset in a vertical direction relative to the other rows, an array of transducers arranged adjacent the array of jets to cause the jets to emit ink when activated, and a controller electrically coupled to the array of transducers to control the activation of the transducers. | 09-29-2011 |
20110254888 | LIQUID EJECTION DEVICE AND LIQUID EJECTION METHOD - In a printing device for discharging ink from a plurality of print heads and printing on a print medium, the print heads are arrayed in a direction orthogonal to a movement direction relative to the print medium so that overlapping areas are created which overlap in the movement direction. A change rate of the apportionment ratio between a first nozzle row of an upstream print head in the relative movement direction of the print medium and of a second nozzle row and a downstream print head in the ends in the overlapping areas is greater than the change rate of the apportionment ratio in the middle in the overlapping areas. Concentration irregularity occurring in the overlapping areas of the printed article can thereby be made inconspicuous. | 10-20-2011 |
20110261099 | PRINTING DEVICE AND PRINTING METHOD - A printing device is configured to print a first band in a first pass and to print a second band in a second pass so that the second band partially overlaps the first band for from an overlap printed area. The overlap printed area is divided by a single continuous boundary line into a first area that is printed during the first pass and a second area that is printed during the second pass. The boundary line includes a first boundary line portion where a parallel line extending parallel to a sub-scanning direction crosses the boundary line from the first area into the second area and a second boundary line portion where the parallel line crosses from the second area into the first area. | 10-27-2011 |
20110261100 | PRINTING DEVICE AND PRINTING METHOD - A first pseudo band is printed, a second pseudo band is printed so as to partially overlap the first pseudo band, and the overlap printed area is divided by a single continuously boundary line into a first area first area printed by the first pseudo band, and a second area printed by the second pseudo band. | 10-27-2011 |
20110261101 | Method and Apparatus for Droplet Deposition - A method for depositing droplets onto a substrate employs an apparatus, such as an inkjet printhead, the apparatus having: an array of channels, acting as fluid chambers, separated by interspersed walls, with each channel communicating with an aperture or nozzle for the release of droplets of a fluid contained within the channel, such as ink. Each of the walls separates two neighbouring channels and is actuable such that, in response to a first voltage, it will deform so as to decrease the volume of one channel and increase the volume of the other channel, and, in response to a second voltage, it will deform so as to cause the opposite effect on the volumes of the neighbouring channels. The method includes the steps of: receiving input data, such as an array of image data pixels; assigning, based on the input data, all the channels within the array as either firing channels or non-firing channels so as to produce groups of one or more contiguous firing channels separated by groups of one or more contiguous non-firing channels; actuating the walls of certain channels so that, for each non-firing chamber, either the walls move with the same sense or they remain stationary, and, for each firing chamber, either the walls move with opposing senses, or one wall is stationary while the other is moved. These actuations result in each of the firing channels releasing at least one droplet of fluid, the resulting droplets forming dots disposed on a straight line on said substrate, for example so as to form a representation of a line of image data pixels. The dots are separated on the line by gaps corresponding to the non-firing channels. | 10-27-2011 |
20110298852 | INKJET RECORDING APPARATUS - An inkjet recording apparatus includes a recording head having three rows of nozzles which are three-phase driven and arranged in a staggered arrangement. The nozzles are arranged in the main scanning direction at an interval of L/3, where L is a pixel pitch, and each nozzle row is ejection-driven in the sequence from the last nozzle row to the forward nozzle row in the moving direction of the recording head. The recording head scans at a moving speed of 2×L×f, where f is an ejection frequency per nozzle row. After the completion of one scan, the recording medium is moved a distance of predetermined multiples of the pixel pitch in the sub-scanning direction, and in the next scan, ink is ejected onto the recording medium at pixel positions other than the pixel position on which the ink has landed in preceding scans. | 12-08-2011 |
20110304664 | ELEMENT SUBSTRATE, PRINTHEAD, HEAD CARTRIDGE, PRINTING APPARATUS, AND METHOD FOR CONFIRMING ELECTRICAL CONNECTION STATUS OF PRINTHEAD AND PRINTING APPARATUS - An element substrate capable of independently confirming an electrical connection status with a logic power source without increasing costs due to increasing the number of terminals or the like. The element substrate includes a connection status output circuit that outputs a signal in response to a connection status of a logic power source input terminal, or a connection status of input terminals of each of a print signal, a clock signal, a drive signal, and a latch signal, and a connection status output terminal that outputs an output signal from the connection status output circuit. | 12-15-2011 |
20110310150 | PRINTING DEVICE, PRINTING METHOD, AND PROGRAM - A printing device performs band printing during two-way printing, wherein the band printing uses black pigment ink and dye ink. In this printing device, in an advancing printed area for which a print head moves in an advancing direction, pigment ink dots are formed first and dye ink dots are formed second. In a retreating printed area for which the print head moves in a retreating direction, dye ink dots are formed first and pigment ink dots are formed second. | 12-22-2011 |
20110316918 | LIQUID EJECTION HEAD, LIQUID EJECTION APPARATUS AND INKJET PRINTING APPARATUS - A liquid ejection head has a recording element including a set of ejection elements. Each of the ejection elements includes a pressure chamber, a supply flow channel connected to the pressure chamber, an ejection energy generating device arranged correspondingly to the pressure chamber, and an ejection port connected to the pressure chamber. The ejection elements constituting the same set have identical ejection operation characteristics. The ejection energy generating devices included in the ejection elements constituting the same set are connected to a common signal wire, and are configured to be applied with the same drive signal through the common signal wire to be simultaneously driven. In the ejection elements constituting the same set, when the ejection energy generating devices are simultaneously driven, liquids are ejected from the pressure chambers through the ejection ports and deposited to a same pixel on an image formation medium in an image formation operation. | 12-29-2011 |
20120001972 | PRINTING APPARATUS AND PRINTING POSITION ADJUSTING METHOD THEREOF - A printing apparatus prints by discharging inks from respective nozzle arrays, the printhead having a plurality of nozzle arrays including at least a first nozzle array, a second nozzle array, and a third nozzle array, and the first nozzle array and the second nozzle array being arrayed to be shifted in a nozzle arrayed direction. The printing apparatus controls the first and second nozzle arrays to discharge inks to form a plurality of first patterns. The printing apparatus controls the third nozzle array to discharge inks to form second patterns while changing a shift amount in a direction which intersects with the nozzle arrayed direction with respect to the plurality of first patterns. The printing apparatus calculates an adjustment value required to adjust relative printing positions between the first nozzle array and the third nozzle array in the intersecting direction using the first patterns and the second patterns. | 01-05-2012 |
20120001973 | PRINTING DEVICE AND PRINTING METHOD - A printer includes a moving section that moves an upstream background color nozzles and an upstream color nozzles in either an outward direction or a returning direction from among intersecting directions that intersect the transporting direction, and moves a downstream background color nozzles and a downstream color nozzles in either the outward direction or the returning direction, and a controlling section that makes the upstream background color nozzles and the upstream color nozzles form a background image, and makes at least the downstream color nozzles form a color image, wherein when the background image is formed, regarding the movement of the upstream background color nozzles and the upstream color nozzles in either the outward direction or the returning direction, the upstream background color nozzles and the upstream color nozzles are made to eject the respective inks thereof to tone the background image. | 01-05-2012 |
20120019579 | FLUID EJECTING APPARATUS AND FLUID EJECTING METHOD - An apparatus includes: a main image nozzle group that forms a main image; a background image nozzle group which has nozzles of a number greater than the main image nozzle group for forming a background image of the main image, and has a first nozzle group situated to one side in a predetermined direction; and a second nozzle group situated to the other side in the predetermined direction, ejects fluid from the main image nozzle group to a first region on which the main image is formed on the medium to form dots, forms dots formed by ejecting fluid from the first nozzle group and dots formed by ejecting fluid from the second nozzle group, in a second region on which an image is formed using fluid forming the background image on the medium and the main image is not formed. | 01-26-2012 |
20120044290 | INKJET RECORDING APPARATUS AND METHOD - An inkjet recording apparatus may include a recording unit, an ink receiver, and a control unit. The recording unit records an image on a sheet by causing a recording head including a plurality of nozzle arrays to reciprocate along a surface of the sheet in a direction in which the plurality of nozzle arrays is arranged. The ink receiver receives ink ejected outside the sheet in preliminary ejection from the recording head. Depending on a recording region on the sheet and which of the plurality of nozzle arrays is or are to be used for recording, the control unit determines a reversing position at which the recording head is reversed in direction of the reciprocation such that all of the plurality of nozzle arrays pass over the ink receiver in a single scan included in the reciprocation. | 02-23-2012 |
20120044291 | PRINTING APPARATUS AND PRINTING METHOD - The present invention provides a printing apparatus and a printing method according to which, even when misalignment in mounted print heads or a print medium conveying error has occurred, a high quality image can be printed by performing one-pass printing or multi-pass printing of a time division driving method. In a case wherein a plurality of nozzles are divided into a plurality of blocks to perform time division driving method, the driving order for the plurality of nozzles in the print head is changed in accordance with a displacement of a plurality of nozzles employed to print on the same raster. | 02-23-2012 |
20120056923 | CONTROL SYSTEMS AND METHODS FOR THERMAL-JET PRINTING - Embodiments of methods and apparatus for micro-printing films are disclosed. According to various embodiments, the printing apparatus includes printheads with ink-jets for dispensing droplets of ink formed from a carrier liquid and a print material. The printheads also include thermal-jets for depositing the print material onto a substrate from the droplets of ink dispensed by ink-jets. The droplets of ink dispensed by ink-jets flow into micro-structures on the thermal-jets and the thermal-jets are heated to evaporate the carrier liquid and to vaporize and direct the print material onto a substrate. The printing apparatus further includes a control unit that is configured to automatically adjust an output from one or more printheads based on one or more measured quantities. | 03-08-2012 |
20120056924 | FLUID EJECTING APPARATUS AND FLUID EJECTING METHOD - A fluid ejecting apparatus includes a nozzle row in which a plurality of nozzles that eject fluid onto a medium are arranged, a first movement unit that displaces a relative position between the medium and the nozzle row, and a control unit that forms a plurality of dot-lines by repeating a fluid ejection operation in which fluid is ejected so as to form a dot-line, such that a maximum time between when one of the adjacent dot-lines in the plurality of dot-lines is formed to when the other of the adjacent dot-lines is formed is reduced. | 03-08-2012 |
20120081432 | STATIONARY INKJET PRINTHEAD WITH DEAD NOZZLE COMPENSATION PROVIDED BY NOZZLES IN SAME NOZZLES ROW - A stationary pagewidth inkjet printhead has one or more nozzle rows extending along a longitudinal axis of the printhead. Each nozzle is configurable to fire a droplet of ink at a plurality of predetermined different dot positions along the longitudinal axis, and each nozzle has an associated primary dot position. The printhead is configured to compensate for a dead nozzle by printing from a selected functioning nozzle positioned in a same nozzle row as the dead nozzle. The selected functioning nozzle is configured to fire some ink droplets at the primary dot position associated with the dead nozzle and to fire some ink droplets at its own primary dot position. | 04-05-2012 |
20120081433 | LIQUID DROPLET JETTING APPARATUS - A liquid droplet jetting apparatus includes a liquid droplet jetting head which has a liquid droplet jetting surface provided with a plurality of nozzles opening thereon in order to jet liquid droplets of a liquid; a cap member which has a size to cover the openings of the nozzles of the liquid droplet jetting head and which is formed with a suction port; a moving mechanism which moves the cap member to make contact/separation with respect to the liquid droplet jetting surface; a purge mechanism which is connected to the suction port of the cap member and which performs purge to discharge the liquid from the nozzles in a state in which the cap member is brought in contact with the liquid droplet jetting surface; and a controller which controls the liquid droplet jetting head, the moving mechanism, and the purge mechanism. | 04-05-2012 |
20120081434 | LIQUID EJECTING APPARATUS - Each of a plurality of unit ejection portions includes a pressure chamber filled with liquid, nozzles which communicate with the pressure chamber, and a piezoelectric vibrator that varies the pressure within the pressure chamber, and ejects ink from each nozzle according to the fluctuation of the pressure within the pressure chamber. A control unit controls the presence or the absence of the minute vibrations to be applied to the pressure chamber at the print period, and causes the respective unit ejection portions to execute the flushing operation so that an ejection quantity of ink by the flushing operation of the unit ejection portion, to which the minute vibrations is applied at the print period, exceeds the ejection quantity of ink by the flushing operation of the unit ejection portion to which the minute vibrations are not applied at the print period. | 04-05-2012 |
20120120139 | RECORDING APPARATUS AND RECORDING METHOD OF RECORDING APPARATUS - When ink is depleted, slow printing is performed, and the print data of one nozzle row is created. If ink is depleted in a first ink cartridge, the print data is set to the nozzle row D, and ink is ejected from the nozzle row D connected to the second ink cartridge in which ink is not depleted, thereby performing the printing. Meanwhile, if ink is depleted in the second ink cartridge, the print data is set to the nozzle row C, and ink is ejected from the nozzle row D connected to the first ink cartridge in which ink is not depleted, thereby performing the printing. | 05-17-2012 |
20120147077 | FLUID EJECTING APPARATUS AND FLUID EJECTING METHOD - A fluid ejecting apparatus repeats an ejecting operation which ejects a fluid from nozzles while a first nozzle row and a second nozzle row move in a movement direction with respect to a medium and a relative movement operation in which the first nozzle row, the second nozzle row and the medium relatively move to the nozzle row direction, and repeatedly performs the ejecting operation so as to include the ejecting operation which does not perform a control which changes the movement distance in the movement direction of the first nozzle row and the second nozzle row according to a position of an end in the movement direction of the image when a main image and a background image are formed to be overlapped on the medium at different ejecting operations. | 06-14-2012 |
20120162297 | TWO PASS PRINT MODE METHOD AND APPARATUS FOR LIMITING WIND-RELATED PRINT DEFECTS - A two pass print mode method and apparatus limits wind-related print defects produced during printing, utilizing a reciprocating carrier of a printer carrying a printhead having an array of columns of actuator-fired fluid-jetting nozzles along a bi-directional scanning path. Due to instructions from a controller, printing proceeds along an initial partial swath on a print medium during a first pass along the scanning path by firing actuators associated with a first plurality of segments of a given column of nozzles. Then, printing proceeds along a final partial swath on the print medium during a second pass along the scanning path by firing actuators associated with a second plurality of segments of the given column of nozzles. Each segment of nozzles of the first and second pluralities includes more than one consecutive nozzle so that gaps are created in the partial swath printing accommodating wind-related effects without causing wind-related print defects. | 06-28-2012 |
20120182341 | RECORDING METHOD AND RECORDING APPARATUS - A print area is a print target region by a recording unit on a sheet (recording medium). First, in first lateral scanning, raster lines (white beads) of a base image are printed by moving a recording unit in a main scanning direction by using nozzles arranged in a sub-scanning direction and printing of total M passes is performed while shifting the recording unit for each pass in the main scanning direction and the sub-scanning direction. | 07-19-2012 |
20120194587 | PRINTING APPARATUS AND DETERMINATION METHOD THEREOF - A printing apparatus, comprising a plurality of printing element substrates provided with printing elements that discharge ink using thermal energy, a plurality of temperature sensors, each of the plurality of temperature sensors is provided on each of the printing element substrates, and that measure a temperature of the printing element substrates, a selection unit configured to select any one of the plurality of temperature sensors, a control unit configured to perform control such that driving is performed for only the printing elements of the printing element substrate on which is provided the temperature sensor selected by the selection unit, and a determination unit configured to determine a presence/absence of an abnormality of the printing element substrates based on a measured temperature that has been measured by the temperature sensor selected by the selection unit. | 08-02-2012 |
20120200625 | PRINT DATA GENERATION APPARATUS AND PRINT DATA GENERATION METHOD - An ink jet printing apparatus, for each level, employs a plurality of density patterns to prevent cancelation of a granularity reduction effect that has been provided by an increase in resolution. Specifically, when determining an arrangement of dot-on areas in the density pattern, the dot-on areas is not located in the areas of a first row of the each of the plurality of density patterns. Thereby, whitish areas appear with the same cycle as a use cycle of the density patterns in a longitudinal direction and thus the whitish areas is not unevenly located. As a result, granularity is prevented from increasing. | 08-09-2012 |
20120206522 | INK JET PRINTING APPARATUS AND RECOVERY METHOD FOR A PRINT HEAD THEREOF - The invention provides a printing apparatus and a recovery method therefore which can minimize ink consumption in a recovery process for a print head of the apparatus. The invention has a control unit to cause a print head to eject ink from nozzles arrayed on the print head so as to recover ink ejecting function of the nozzles, and a specification unit to specify a set print mode selected from among a plurality of print modes. The print modes define number and position of nozzles in use for printing an image. The control unit executes a first preliminary ejection process before or after printing an image on a print medium. The first preliminary ejection process has selectively ejecting ink from both of the nozzles in use selected by the currently set print mode and the unused nozzles in the vicinity of the nozzles in use. | 08-16-2012 |
20120206523 | INKJET PRINTING DEVICE AND INKJET PRINTING METHOD - In-image preliminary ejection is performed by use of nozzles used to print an image out of the nozzles included in an overlapping link region, and between-image preliminary ejection is performed by use of nozzles which are not used to print the image. Thus, a reduction in image quality is inhibited, while the amount of print media used in the between-image preliminary ejection is reduced. | 08-16-2012 |
20120223987 | LIQUID EJECTION APPARATUS - A liquid ejection apparatus including a first-recording executing section configured to execute a two-way processing based on first data included in recording data corresponding to a predetermined maximum number of lines recordable during a single movement of a carriage, the first data being data based on which liquid ejection is performed on a downstream side of a unit area in which a ratio of the number of dots each required for multi-color ejection to the number of all dots is not less than a first value. The first-recording executing section executes a one-way processing based on data corresponding to the unit area in which the ratio is not less than the first value and data based on which liquid ejection is performed on an upstream side of the unit area, which two data are included in the recording data corresponding to the predetermined maximum number. | 09-06-2012 |
20120223988 | METHOD FOR MANUFACTURING LIQUID EJECTING APPARATUS, LIQUID EJECTING APPARATUS, CONTROL DEVICE USED THEREFOR, AND STORAGE MEDIUM - In the manufacturing process of a printer, a check (check associated with the liquid ejecting performance of ejection outlets) on the heads is performed, and the heads are ranked based on the result of the check. The heads that are high in liquid ejecting performance are classified as a first rank; the heads that are low in liquid ejecting performance, as a second rank; and the heads that are lower in ejecting performance than the heads of the second rank, as a third rank. The heads of the third rank are dealt with as not applied to the printer. The heads of the second rank are distributed to a color inkjet head that ejects a color ink or to a pretreatment liquid ejecting head that ejects a colorless liquid. The heads of the first rank are distributed to a black inkjet head that ejects black ink. | 09-06-2012 |
20120223989 | IMAGE FORMING APPARATUS, IMAGE CORRECTING METHOD, AND COMPUTER-READABLE STORAGE MEDIUM - An image forming apparatus includes a recording head including a plurality of nozzles for ejecting recording liquid to perform image formation on a recording medium; and a correcting unit. The correcting unit is configured to divide the recording head by different division patterns each indicating that the recording head is divided into a plurality of segments by at least one different dividing point, correct input and output characteristics for each of the segments in each division pattern to calculate correction effect of the each division pattern, and determine one of the division patterns based on the calculated correction effects of the division patterns as a specified division pattern to correct input and output characteristics of the recording head. | 09-06-2012 |
20120223990 | Fluid Ejecting Apparatus and Fluid Ejecting Method - A fluid ejecting apparatus includes: a first nozzle group from which a first fluid including white ink is ejected; a second nozzle group located downstream of the first nozzle group and from which a second fluid excluding white ink is ejected; a third nozzle group located between the first and second nozzle groups in a predetermined direction that does not eject any fluid; a movement mechanism that moves the first and second nozzle groups relative to a target medium in a movement direction; a transportation mechanism that transports the target medium relative to the first and second nozzle groups in the predetermined direction; and a controlling section that controls forming first and second layered images using the first and second nozzle groups respectively. The length of an area where the third nozzle group is located in the predetermined direction is an integral multiple of the predetermined transportation amount. | 09-06-2012 |
20120236054 | IMAGE FORMING APPARATUS, COMPUTER-READABLE STORAGE MEDIUM, AND IMAGE FORMING METHOD - An image forming apparatus includes a carriage that includes a head including a black nozzle array in which a plurality of nozzles are arranged and a color nozzle array in which a plurality of nozzles are arrange, the black nozzle array being disposed at a position shifted in the sub-scanning direction downstream in a medium conveying direction with respect to the color nozzle array; a conveying unit configured to convey a recording medium in a sub-scanning direction; and a control unit. The control unit forms an image by the color nozzle array in a main scanning in one direction, relatively moves the recording medium to a subsequent main-scanning position thereafter, and forms an image by the black nozzle array on the image formed by the color nozzle array in a following main scanning in the other direction so as to complete an image for one scanning area. | 09-20-2012 |
20120236055 | INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - An object of the present invention is to provide an ink jet printing apparatus which can prevent possible stripe-like density unevenness in a joint in a print head constructed by joining a plurality of chips together even if the print head is inclined to the regular position of the print head. The present invention uses a print head having the nozzle arrays being shifted in a direction in which the nozzles are arranged, so as to have overlapping portions in a direction orthogonal to the nozzle arranging direction. The present invention controls an ink ejecting operation of the nozzles in the overlapping portions between the plurality of nozzle arrays on the basis of an angle between the nozzle array arranging direction and a direction orthogonal to the direction in which the print head moves relative to the print medium. | 09-20-2012 |
20120242728 | PRINTING APPARATUS AND PRINTING METHOD - To prevent uneven gloss on a printed image in a printing apparatus in which light-curable ink is used, a printing apparatus is provided. The printing apparatus includes a controller controls medium-conveying parts for conveying a medium so that the medium supplied from an upstream side is released on a downstream side; nozzles for discharging ink droplets cured by light irradiation onto the medium; a light-irradiation part for irradiating the medium with light; and medium-deforming parts arranged on the downstream side of the nozzles, holding the medium from the front and back, and deforming the medium so that an irregular shape is formed in cross section; the medium is conveyed downstream by the medium-conveying parts after the medium is deformed by the medium-deforming parts; droplets of ink are discharged from the nozzles to form an image on the surface of the medium; and the ink droplets discharged onto the medium are irradiated with light by the light-irradiation part to cure the droplets. | 09-27-2012 |
20120242729 | PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus is provided in which a position of a joint of a first yellow nozzle group and a second yellow nozzle group in a predetermined direction is offset from a position of a joint of a first magenta nozzle group and a second magenta nozzle group in a predetermined position and a position of a joint of a first cyan nozzle group and a second cyan nozzle group in the predetermined position, and the position of the joint of the first magenta nozzle group and the second magenta nozzle group in the predetermined position is the same as the position of the joint of the first cyan nozzle group and the second cyan nozzle group in the predetermined direction. | 09-27-2012 |
20120287188 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus provided with a first mode in which one nozzle row group is positioned so as to be shifted to the downstream side of the medium transport direction with respect to another nozzle row group, ink forming a main image is filled into the first nozzle row in the one nozzle row group, ink forming a background image is filled into the second nozzle row in the other nozzle row group, and the one nozzle row group and the other nozzle row group are used to form the background image before the main image, and a second mode, in which ink forming a background image is filled into the first nozzle row, ink forming the main image is filled into the second nozzle row, and the one nozzle row group and the other nozzle row group are used to form the main image before the background image. | 11-15-2012 |
20120287189 | IMAGE FORMING DEVICE AND IMAGE FORMING METHOD - An image forming device in which one nozzle row group is positioned out of line to one side in a medium transport direction with respect to other nozzle row groups, including a first mode in which a main image that is formed using either nozzle row group out of the one nozzle row group and the other nozzle row groups and a background image that is formed using the other nozzle row group out of the one nozzle group and the other nozzle row groups are formed on a medium to be overlapping, and a second mode in which the main image is formed on the medium without forming the background image using either nozzle row group out of the one nozzle row group and the other nozzle row groups. | 11-15-2012 |
20120287190 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus includes: a first nozzle group forming a main image; a second nozzle group ejecting auxiliary ink and lined up with the first nozzle group in a moving direction of the nozzle group; and a third nozzle group ejecting the auxiliary ink and positioned on a downstream side of a medium transport direction relative to the first nozzle group, in which ink is ejected from the first nozzle group on a region where the main image is formed in the image forming region on the medium in a first ejection operation, and auxiliary ink is ejected from the second nozzle group on a region where the main image is not formed in the image forming region, and, in an ejection operation after the first ejection operation, the auxiliary ink is ejected from the third nozzle group over the entire image forming region. | 11-15-2012 |
20120313989 | Method And System For Operating A Printhead To Compensate For Failed Inkjets - An inkjet printer has a printhead in which all of the inkjets are used for printing, but at a less than maximum available ejection output. When a failed inkjet is identified, the ejection throughput is increased for inkjets that print pixels in an at least two pixel neighborhood about a missing pixel, so the pixels to be printed by the failed inkjet are printed by inkjets that print pixels in the two pixel wide neighborhood. | 12-13-2012 |
20120313990 | PRINTING DEVICE, PRINTING METHOD, AND MEDIUM HAVING RECORDED PROGRAM - To provide technology that can reduce the possibility of an image becoming blurry with a printing device for printing images on a printing medium. A printing device is equipped with an affixing part for affixing on a printing medium ink containing a special glossy ink having reflectance angle dependence as an optical characteristic, and a controller for controlling the operation of the printing device. The controller uses the affixing part to form a base layer by affixing the special glossy ink on the printing medium, and after the base layer is formed, forms an image layer representing an image by affixing on the base layer special glossy ink and, among the inks noted above, ink other than the special glossy ink. | 12-13-2012 |
20120313991 | LIQUID EJECTION APPARATUS AND NON-TRANSITORY STORAGE MEDIUM STORING PROGRAM - A liquid ejection apparatus including: a flushing-operation-data producing section which produces flushing-operation data for flashing of ink; a second-liquid-ejection-data producing section which produces data about ejection of treatment liquid such that (i) the treatment liquid is to be landed on a dot area on which the ink is to be landed upon forming an image dot among dot areas and (ii) the second liquid is not to be landed on at least one dot area on which the first liquid is to be landed on the basis of the control of the flushing-operation controlling section by referring the flushing-operation data produced by the flushing-operation-data producing section. | 12-13-2012 |
20130010021 | PRINTING ELEMENT SUBSTRATE AND PRINTHEAD - A printing element substrate, comprising a printing element, a switching element which drives the printing element based on an input control signal, a first current source which generates a predetermined current, a second current source which generates a current based on an input voltage, and a current generation circuit which generates the control signal by amplifying a current obtained by adding a current generated by the second current source to a current generated by the first current source, and then generates the control signal by amplifying a current generated by the first current source. | 01-10-2013 |
20130010022 | Direct Marking Printer Having A User Configurable Print Resolution - A printing device can be configured with different numbers of ink colors and ink types to print with a different cross-process direction print resolution for each ink color and ink type. The printing device includes a plurality of printhead arrays with each printhead array being configured to eject ink onto an image receiving surface at a first print resolution in a cross-process direction. Each ink supply in a plurality of ink supplies is configured to provide ink to one printhead array in the plurality of printhead arrays, and a controller is configured to operate the printhead arrays at one of at least two combinations of ink colors and ink types. The controller operates the printhead arrays ejecting a same ink color or a same ink type at a second print resolution in the cross-process direction that is different than the first print resolution. | 01-10-2013 |
20130044150 | INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD - In a serial type of color inkjet printing apparatus having a plurality of nozzle arrays, overlapping areas are provided in the respective operating nozzle areas, but printing of a high-quality image can be achieved without color banding and gloss variations accompanying non-uniformity in the ink application process. To attain this, while the operating nozzle areas of the plurality of nozzle arrays partially overlap with each other, the overlapping area of the operating nozzle area of each nozzle array is set to be equal to an integral multiple of the amount of conveyance. In consequence, the ink application process for the entire image area is made uniform. | 02-21-2013 |
20130063510 | Multi-Mode Printing - A printing system configured for multi-mode printing, the printing system comprising a print head, the print head including a number of nozzle pairs, each nozzle pair comprising a primary ink nozzle and a secondary ink nozzle; and switching circuitry for selectively firing either or both of the nozzles in a selected pair within one of a number of time slots based on a current print mode. | 03-14-2013 |
20130070011 | IMAGE POSITION INSPECTING APPARATUS, COMPUTER-READABLE MEDIUM AND IMAGE FORMING APPARATUS - An image position inspecting apparatus includes a reading unit, a generating unit and a specifying unit. The reading unit includes light receiving elements arranged with a reading resolution Rs and reads an inspection image. The generating unit generates a profile based on the read inspection image. The specifying unit acquires a position of the center of gravity of the pixels of the inspection image with respect to the light receiving elements from the profile and specifies a position of each of the pixels of the inspection image based on a phase difference which is a deviation of the acquired position of the center of gravity of the pixels with respect to a light receiving center of the light receiving elements. A resolution of the inspection image is Rp. The reading resolution Rs and the resolution Rp satisfy the following equation. And, m is a positive integer. Rp·((m+1)/2)03-21-2013 | |
20130076817 | Method and Apparatus For Three-Dimensional Digital Printing - Techniques are presented for digital ink jet printing upon a substrate with a significant third dimension. Droplets in the range of 120 pL to 200 pL have been found suitable for substrates with variability, in the third dimension, of up to approximately 4 cm. A larger droplet can be generated by utilizing a plurality of drive pulses, each of which generates a smaller droplet, and having the plurality of smaller droplets combine in mid-air. The data to be printed can be derived from a 3D model and such 3D model can also be used to guide shaping of the substrate. The 3D model can be produced from 2D image data. If the 2D image data is a two-dimensional portrait photograph, a result, of using the present invention, can be a realistic portrait in the form of a bas-relief sculpture. | 03-28-2013 |
20130076818 | LIQUID JETTING APPARATUS - A liquid jetting apparatus includes: a head unit including a liquid jetting head, a regulating member arranged to sandwich the head unit from a nozzle array direction, a restriction mechanism configured to restrict the head unit from displacement in an orthogonal direction perpendicular to the nozzle array direction, and a landing position correction mechanism configured to correct position of landing the liquid jetted from the plurality of nozzles onto the medium in the orthogonal direction. The restriction mechanism restricts a portion of the head unit inside of outmost nozzle arrays in the orthogonal direction. | 03-28-2013 |
20130076819 | PRINTING APPARATUS, LINE PRINTER AND METHOD FOR PRINTING - A printing apparatus includes a head section having a nozzle row being configured to emit photocurable ink onto a target and an irradiating section configured to irradiate the target, a moving section configured to move the head section with respect to the target for printing, and a controller configured to carry out control so as to emit the photocurable ink from the nozzles onto an image forming area of the target and to irradiate the photocurable ink having impacted on the image forming area from the irradiation section. The controller controls irradiation energy of the light that the irradiation section irradiates the image forming area with so that irradiation energy of the light that an edge area of the image forming area is irradiated with is smaller than irradiation energy of the light that an area of the image forming area adjacent to the edge area is irradiated with. | 03-28-2013 |
20130088539 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus includes a nozzle row group that is provided with a first nozzle row and a second nozzle row, and a control unit that performs a dot forming operation of ejecting a liquid from nozzles to form dots. The control unit divides the first nozzle row and the second nozzle row into N nozzle groups when the dot forming operation is performed. In a first mode, A nozzle groups of N nozzle groups of the second nozzle row and (N−A) nozzle groups of the first nozzle row are employed. In a second mode, B (A≠B) nozzle groups of N nozzle groups of the second nozzle row and (N−B) nozzle groups of the first nozzle row are employed. | 04-11-2013 |
20130106934 | INK-JET RECORDING DEVICE AND INK-JET RECORDING CONTROL METHOD | 05-02-2013 |
20130120483 | Fluid Ejecting Apparatus and Fluid Ejecting Method - A fluid ejecting apparatus includes first and second nozzle groups that eject first and second fluids respectively; a third nozzle group that does not eject any fluid; and a controlling section that performs image formation and transportation operations, including ejecting the first and second fluids while moving the first and second nozzle groups in a movement direction, and transporting the medium relative to the first and second nozzle groups in a predetermined direction. The controlling section performs control for forming a first image using the first nozzle group and for forming a second image on the first image using at least the second nozzle group. Relative to the predetermined direction, the first nozzle group is located upstream of the second nozzle group, and the third nozzle group is located downstream of the first nozzle group and is located upstream of the second nozzle group. | 05-16-2013 |
20130135373 | ADAPTIVE MOTION CONTROL FOR CARRIAGE PRINTER - A method of adaptively controlling motion of a carriage in a carriage printer within a user's environment, the method includes controlling a motor to move a carriage of a carriage printer within a user's environment according to a first motor control profile; acquiring data relative to a motion of the carriage printer as the carriage is moved according to the first motor control profile; analyzing the acquired data relative to the motion of the carriage printer corresponding to the carriage being moved according to the first motor control profile; and controlling the motor to move the carriage of the carriage printer according to a second motor control profile. | 05-30-2013 |
20130135374 | LIQUID EJECTING APPARATUS - There is provided a liquid ejecting apparatus including: a main tank, a sub tank, a liquid ejecting head, a first supply channel member, a second supply channel member, and a pump device. The first liquid supply channel includes an upstream-side supply channel, and a downstream-side supply channel The pump device includes a first chamber, a second chamber, and a transfer-force applying section. The first chamber inlet is connected to a downstream-side end portion of the upstream-side supply channel. The first chamber outlet and the second chamber inlet are connected to the transfer-force applying section. The second chamber outlet is connected to the downstream-side supply channel. The first chamber outlet is provided to an upper-end portion of the first chamber. The second chamber outlet is provided to an upper-end portion of the second chamber. | 05-30-2013 |
20130182027 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - Ink droplets are ejected from a plurality of dot forming elements arranged along an array direction to form dots of at least two sizes on a recording medium. If the dots formed along the array direction are classified into a plurality of groups depending on a plurality of times, the existing ratio of dots of a smaller one of the at least two sizes is higher for one of the groups of an earlier time of the times. | 07-18-2013 |
20130182028 | METHOD OF CAMOUFLAGING ARTIFACTS IN HIGH COVERAGE AREAS IN IMAGES TO BE PRINTED - A method of printing an image on a receiving medium includes increasing the number of pixels in each row of a part of the image by x pixels, resulting in the part of the image including m by n+x pixels; assigning a printing element to each added pixel; identifying pixels to which a compensating printing element of the defective printing element is assigned; changing the value of at least one identified pixel into an integer value greater than zero; increasing the first printer resolution in the main-scanning direction to a second printer resolution by multiplying the first printer resolution in the main-scanning direction with a factor equal to (n+x)/n; and printing the part of the image according to the second printer resolution in the main-scanning direction and according to the values of the pixels of the part of the image. | 07-18-2013 |
20130187968 | CONTROLLING INK DEPOSITION DURING PRINTING - Systems and methods of controlling ink deposition during printing are disclosed. An example of a method includes actuating a plurality of print heads to deposit ink on a substrate. The method also includes activating an energy source to speed cure of the deposited ink on the substrate. The method also includes adjusting electrical output to the plurality of print heads to compensate for different distances from the energy source to each of the plurality of print heads. | 07-25-2013 |
20130194333 | IMAGE FORMING APPARATUS AND CONTROL METHOD - An image forming apparatus includes: a recording head having a first nozzle row and a second nozzle row. One nozzles of the nozzles in a k-th nozzle group (1≦k≦p−1; p is the number of types of droplets) in the conveying direction and of the first nozzle row and second nozzle row ejects the specific type of droplets, and the other nozzles in a k-th nozzle group ejects droplets other than the specific types of droplets. The control unit controls to eject, in one of directions of the reciprocal movement, droplets other than the specific types of droplets from nozzle groups that do not eject the specific type of droplets and the specific type of droplets from the first and second nozzle groups that eject the specific type of droplets and in other one of the directions of the reciprocal movement, droplets other than the specific types of droplets from nozzle groups that do not eject the specific type of droplets. | 08-01-2013 |
20130194334 | PRINTER, PRINTING METHOD AND APPARATUS - A printer includes a feed portion configured to feed a print medium in a sub-scanning direction, ejection port groups including a first ejection port group and a second ejection port group configured to eject a first ink and a second ink, respectively, the first ejection port group being disposed on an upstream side of the second ejection port group, a moving portion configured to relatively move the ejection port groups in a main scanning direction, and a control portion configured to cause at least one of ejection ports of the first ejection port group to eject the first ink a plurality of times to a dot array extending in the main scanning direction, and cause at least one of ejection ports of the second ejection port group to eject the second ink, at least once to the dot array onto which the first ink has been ejected. | 08-01-2013 |
20130201234 | IMAGE RECORDING APPARATUS, IMAGE PROCESSING APPARATUS, IMAGE RECORDING METHOD AND IMAGE PROCESSING METHOD, AND RECORDING MEDIUM - According to the present invention, recording density information indicating a recording density of a plurality of recording elements is acquired on the basis of a test chart for density measurement output to a recording medium after carrying out recording defect correction in respect of existing recording elements having a recording defect, recording elements which record in the periphery of a new recording element having a recording defect are extracted as correction hold recording elements on the basis of a test chart for recording defect detection output to the recording medium, predetermined density correction values are set in respect of the correction hold recording elements, density correction values calculated on the basis of the acquired recording density information are set in respect of recording elements other than the correction hold recording elements, and output image data is output to the recording medium on the basis of the set density correction values. | 08-08-2013 |
20130201235 | INKJET PRINTHEAD AND METHOD OF PRINTING WITH MULTIPLE DROP VOLUMES - A printhead and a method of ejecting liquid droplets are provided. The method includes providing a printhead operable to eject liquid drops having a plurality of drop volumes V | 08-08-2013 |
20130201236 | INKJET PRINTHEAD AND METHOD OF PRINTING WITH MULTIPLE DROP VOLUMES - A printhead and a method of ejecting liquid droplets are provided. The method includes providing a printhead operable to eject liquid drops having a plurality of drop volumes V | 08-08-2013 |
20130222454 | LIQUID DROPLET DISCHARGE APPARATUS AND LIQUID DROPLET DISCHARGE ADJUSTING METHOD THEREOF - A liquid droplet discharge apparatus includes a liquid droplet discharge head and a control unit. The liquid droplet discharge head includes: a plurality of main nozzles arranged in a first direction and discharging liquid droplets of main dots; and a plurality of sub nozzles arranged at end portion sides of arrays of the main nozzles and discharging liquid droplets of sub dots. The control unit is configured to control the liquid droplet discharge head to discharge the liquid droplets from the main and sub nozzles and to form sub dot arrays by the liquid droplets discharged from the sub nozzles in two arrays with being staggered at a predetermined interval in the second direction between main dot arrays by the liquid droplets discharged from the main nozzles, so as to form the dot arrays. | 08-29-2013 |
20130257946 | IMAGE RECORDING APPARATUS - With an ink jet head in which color nozzles are aligned with an interval of three times an interval of black nozzles at the right side in a scanning direction of the black nozzles, when an image is recorded by ejecting black ink and color ink superposed on each other, a first unit recording operation is repeatedly executed, in which scanning by ejecting ink from at least one of the black nozzles and color nozzles is repeated three times while moving a carriage in the scanning direction, and a recording sheet is conveyed by a predetermined amount every time scanning is completed. In the first unit recording operation, the carriage is moved to the left side while ink is ejected from both the black nozzles and color nozzles at the first scanning. Moreover, in each of the second and third scanning operations, ink is ejected only from the color nozzles. | 10-03-2013 |
20130257947 | RECORDING APPARATUS - There is provided a recording apparatus including: a recording head having recording elements arranged in a first direction; a first transporting mechanism having a first supply roller and a first discharge roller to transport the first recording medium; a second transporting mechanism arranged between the first supply and discharge rollers in the first direction to transport the second recording medium, the second transporting mechanism holding an overlap portion, of the second recording medium, overlapping in the first direction with a portion of a recording range in which the recording elements of the recording head are arranged; and a controller controlling the recording head to perform recording on the second recording medium by using only a part of the recording elements which are located to overlap with the overlap area of the second recording medium. | 10-03-2013 |
20130271520 | PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus that prints an image on a print medium using special glossy ink and color ink, the printing apparatus includes a print head including a plurality of special glossy ink nozzles for ejecting the special glossy ink and a plurality of color ink nozzles for ejecting the color ink, a print unit that drives the print head, an obtaining part that obtains image data, a print controller that prints the obtained image data on the print medium by controlling the print head and the print unit. In a case of printing the obtained image data on the special glossy region, the print controller allows a group of the special glossy ink nozzles to be offset from a group of the color ink nozzles in the sub-scanning direction by a predetermined interval, and then performs the printing by ejecting the special glossy ink and the color ink at timings different from each other. In a case of printing the obtained image data on the dedicated color region, the print controller uses a relatively large number of the color ink nozzles as compared with a number of the color ink nozzles used when the special glossy region is printed. | 10-17-2013 |
20130293611 | IMAGE RECORDING APPARATUS AND METHOD - According to the image recording apparatus and method of the present invention, as a defective recording element is detected immediately before a correction value is generated, while a correction value is being generated, and before an image is recorded, management of the recording elements can be ensured than before. In particular, as the detection of a defective recording element is carried out immediately before a correction value is generated, a defective recording element becomes known at the time of generating the correction value, and the correction value can be generated in a state where the defective recording element is put in a non-ejecting state. Further, a defective recording element can be detected more reliably. Through this, generation of a non-uniform streak resulting from a defective recording element can be suppressed with a higher possibility than before. As a result, an image of higher quality than before can be formed. | 11-07-2013 |
20130321504 | IMAGE RECORDING APPARATUS - Nozzles for ejecting color ink are aligned in the conveying direction of a recording sheet at a pitch corresponding to three times the pitch of nozzles ejecting black ink. A region in which an image is printed is divided into sixteen regions segmented into four parts in the scanning and conveying directions. Each region includes eight dots in the scanning direction and four dots in the conveying direction. With respect to regions which include one character, in one side attachment regions, black ink is ejected only when an ink jet head is moved to the right side. With respect to regions which include one character, in the other side attachment regions, black ink is ejected only when the ink jet head is moved to the left side. | 12-05-2013 |
20130328955 | PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus comprising: a print head which relatively moves on a printing medium, and a print control unit that controls the print mechanism, a plurality of nozzle columns are formed in the print head, wherein the print control unit is configured to execute printing by using a first nozzle use setting configured such that a first group of a first nozzle column on an upper stream side is used and a second group of a second nozzle column on the downstream side is used, or a second nozzle use setting configured such that an entire third column is used, and a third nozzle use setting configured such that a third group of the second nozzle column on the upper stream side is used, and a fourth group of the first nozzle column on the downstream side is used in order of each first, second, and third nozzle use setting. | 12-12-2013 |
20130328956 | INKJET PRINTHEAD AND METHOD OF PRINTING WITH MULTIPLE DROP VOLUMES - A printhead and a method of ejecting liquid droplets are provided. The method includes providing a printhead operable to eject liquid drops having a plurality of drop volumes V | 12-12-2013 |
20130335469 | INKJET RECORDING APPARATUS AND METHOD FOR CONTROLLING THE SAME - In an inkjet head which has nozzle rows having nozzles each of which ejects curable inks cured by imparted activation energy and which are arranged in a first direction at a pitch P, the nozzle rows being N (N≧5) nozzle rows of every color which eject, respectively, thick inks of four colors including cyan, magenta, yellow and black, and at least one light ink among light inks similar in color tone to the thick inks, the nozzles in each of the nozzle rows are arranged so as to be shifted by P/N from each other in a first direction, a nozzle of an ink with lowest cure sensitivity is arranged on the most upstream side in a direction of relative movement of a recording medium in the first direction, and further the nozzle of light ink is arranged in between the nozzles of two different thick inks. | 12-19-2013 |
20130342598 | INKJET PRINTER - In an inkjet head, at least one of a plurality of nozzle arrays to eject ink of different colors from one another is arranged with nozzles displaced in position from nozzles of the other nozzle arrays in an arrangement direction of the nozzles. A controller is configured to reduce an amount of ink to be ejected to a pixel at an end portion of an image on one side in the arrangement direction from a nozzle array of the plurality of nozzle arrays having a nozzle protruding to the one side the most among the nozzles of the nozzle arrays for a same ejection target pixel. | 12-26-2013 |
20130342599 | INKJET PRINTER - A controller is configured to determine nozzles to be used for ejection in nozzle arrays in a upstream head block by selecting endmost nozzles from nozzles in a region of the upstream head block overlapping a downstream head block so that the endmost nozzle of the nozzle array located more downstream is closer to a center of the upstream head block, and determine nozzles to be used for ejection in nozzle arrays in the downstream head block by selecting endmost nozzles from nozzles in a region of the downstream head block overlapping the upstream head block so that the endmost nozzle of the nozzle array located more upstream is closer to a center of the downstream head block. | 12-26-2013 |
20140015883 | PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus includes a printing mechanism performing printing by ejecting ink from a printing head which is relatively moved with respect to the printed medium and a printing control section controlling operation of the printing mechanism. A plurality of nozzle rows are formed side by side for each of ink types in a main scanning direction in the printing head. The printing mechanism includes a transportation section which is configured so as to be capable of switching a transportation direction of the printed medium between a first direction and a second direction. The printing control section performs the printing by switching the first printing mode which uses two or more nozzle rows and the second printing mode which uses one or more nozzle rows, which is caused by switching the transportation direction. | 01-16-2014 |
20140015884 | PRINTING METHOD - A printer and a method of printing by depositing liquid droplets ( | 01-16-2014 |
20140028747 | System and Method for Spreading Ink on a Media Web - A leveling and spreading system has been developed that enables the speed and position of the web to be determined from a sensor on a first roller. In a duplex print process, the first roller also reduces a temperature of the media web and an ink image printed in the first side print operation to within a first predetermined temperature range. A second roller modulates the temperature of the media web and ink ejected onto the media web immediately before the web enters the leveling and spreading system to within a second predetermined temperature range to enable uniformity of the ink and web temperatures for spreading the ink in a nip formed with a third roller. | 01-30-2014 |
20140028748 | PRINT HEAD MODULE - A print head module ( | 01-30-2014 |
20140055514 | COMPENSATION OF BI-DIRECTIONAL ALIGNMENT ERROR - A method of compensating for bi-directional alignment error in a printing system including a carriage, a print head disposed thereon, and a bi-directional printing mode includes determining a data set by a data set determination module corresponding to bi-directional alignment error at a plurality of carriage speeds. The method also includes determining a line of best fit of the data set by a best fit determination module and identifying a flight time of fluid ejected from the print head and a carriage position error of the carriage from the line of best fit by an alignment parameter identification module. The method also includes compensating for the bi-directional alignment error by an error compensation module based on the flight time and the carriage position error. | 02-27-2014 |
20140063097 | TOUCH SENSOR, MANUFACTURING METHOD THEREOF, AND LIQUID CRYSTAL DISPLAY HAVING TOUCH PANEL - Embodiments of the invention provide a touch sensor, a manufacturing method thereof and a liquid crystal display having touch panel. The touch sensor comprises a substrate, a touch sensing layer in a first direction, a touch sensing layer in a second direction perpendicular to the first direction, an insulation layer and a metal bridge. The touch sensing layers in the first and second directions are provided on a surface of the substrate, the touch sensing layer in the first direction is discontinuous, and the touching sensing layer in the second direction is continuous. The insulation layer is provided on the substrate, the touch sensing layer in the first direction and the touch sensing layer in the second direction. The metal bridge is provided on the insulation layer and connects with the touch sensing layer in the first direction. | 03-06-2014 |
20140071191 | APPARATUS FOR OPTIMIZING NON-EJECTION CORRECTION PARAMETER OF INK-JET HEAD, AND INK-JET PRINTER - The present invention efficiently optimizes a non-ejection correction parameter for each nozzle. The non-ejection correction parameter for each nozzle is optimized by repeatedly executing the operations of generating test chart data based on a non-ejection correction parameter for each of a plurality of nozzles provided on an ink-jet head; acquiring read data of a test chart recorded on a recording medium by ejecting ink from the plurality of nozzles based on the test chart data while relatively moving the ink-jet head and the recording medium; evaluating a correction intensity of the non-ejection correction parameter for each of the nozzles based on the acquired read data; and updating the non-ejection correction parameter for each of the nozzles based on a single variable root-finding algorithm using iteration method from the evaluated correction intensity. | 03-13-2014 |
20140078200 | FLUID EJECTING APPARATUS AND FLUID EJECTING METHOD - A fluid ejecting apparatus repeats an ejecting operation which ejects a fluid from nozzles while a first nozzle row and a second nozzle row move in a movement direction with respect to a medium and a relative movement operation in which the first nozzle row, the second nozzle row and the medium relatively move to the nozzle row direction, and repeatedly performs the ejecting operation so as to include the ejecting operation which does not perform a control which changes the movement distance in the movement direction of the first nozzle row and the second nozzle row according to a position of an end in the movement direction of the image when a main image and a background image are formed to be overlapped on the medium at different ejecting operations. | 03-20-2014 |
20140085366 | PRINTER AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING PRINTER CONTROL PROGRAM - A printer includes a plurality of discharge control devices, a control data output device, a connection device, a connection control device, a processor and a memory. The processor performs starting output of specified print data, which is used to discharge the liquid by the discharge port group, from the control data output device to a specified discharge control device which is one of the plurality of discharge control devices that are each connected to one of the plurality of second connection ports and which is a target to perform processing that outputs print data, outputting subsequent print data, which relates is to a specified discharge target onto which the liquid is to be discharged by the discharge port group, to the specified discharge control device that is connected to the second connection port, based on the specified print data for which output has been started. | 03-27-2014 |
20140085367 | PRINTER AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING PRINTER CONTROL PROGRAM - A printer includes discharge control devices, a first ID storage device, a control data output device, a connection device, a connection control device, an assigning device, a processor, and a memory. The processor performs outputting print data, which is data to discharge the liquid by the discharge port group connected to the discharge control device, corresponding to the unique ID from the control data output device, by using a communication ID that corresponds to the unique ID, via a connection device controlled by a connection control device, to each of a plurality of discharge control devices, and controlling discharge of the liquid by the discharge port groups to which the plurality of discharge control devices are respectively connected, in accordance with the print data which corresponds to the unique ID of the individual discharge control device and which has been output from the control data output device. | 03-27-2014 |
20140098151 | INKJET 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. | 04-10-2014 |
20140125723 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes a first piezoelectric element, a first nozzle that ejects a liquid in association with the driving of the first piezoelectric element, a second piezoelectric element, a second nozzle that ejects a liquid in association with the driving of the second piezoelectric element, a driving signal generation unit that generates a driving signal for driving a plurality of piezoelectric elements, and a residual vibration detection unit that detects residual vibration generated by the driving of the piezoelectric element. The first nozzle is adjacent to the second nozzle. | 05-08-2014 |
20140132657 | INK-JET RECORDING DEVICE AND INK-JET RECORDING CONTROL METHOD - An ink-jet recording device is capable of correcting a recording position due to a leaning of a printing head and correcting of driving timing between multiple printing heads. Each nozzle row of a printing head is classified into multiple nozzle groups, and the driving timing of the nozzle groups other than the nozzle group serving as a reference of correction of the multiple nozzle groups is adjustable to correct for any leaning of the printing head. Moreover, in the event of performing the driving timing between printing heads, the driving timing of a non-reference printing head is adjustable relative to a reference printing head employed for leaning correction of multiple printing heads. | 05-15-2014 |
20140139577 | Printing Apparatus And Printing Method - A printing apparatus which can form an image formation dot for printing an image defined as an object to be printed on a printing medium, the printing apparatus comprising a line head which includes a nozzle array arraying a plurality of nozzles, by moving at least one of a printing medium and the head, in a direction intersecting a direction relatively changing a position of the printing medium and the head and a control unit which performs a specific operation forming a flushing dot besides the image formation dot by discharging a liquid on the line head, wherein, when a specific condition increasing viscosity of the liquid is satisfied, the control unit performs the specific operation of discharging the liquid to the printing medium and the specific operation of discharging the liquid to a place other than the printing medium. | 05-22-2014 |
20140152727 | PROCESSING PRINTHEAD CONTROL DATA AND PRINTING SYSTEM - According to one example, a printer includes an inkjet printhead, and the printhead comprises nozzles through which printing fluid is ejectable during a pass of the printhead across a print zone. Processing printhead control data includes obtaining printhead control data describing pixel locations in an image to be printed on a media, and allocating, for a swath of the image, each of the pixel locations to a printhead nozzle and to a print pass of a set of print passes in accordance with a print mask. The print mask defines sections associated different groups of the nozzles. | 06-05-2014 |
20140176628 | CONTROL EJECTION OF INK DROPS TO RESPECTIVE REGIONS IN THE SPITTOON - A method of maintaining nozzles of a printhead includes periodically moving a printhead having a plurality of nozzles toward a spittoon, and ejecting a plurality of sets of ink drops from the nozzles of the printhead to the spittoon mode. The method also includes controlling the ejecting of the plurality of sets of ink drops from the nozzles of the printhead to the spittoon by the control module. Consecutive sets of ink drops received by the spittoon are received by different sets of regions of the plurality of sets of regions within the spittoon. | 06-26-2014 |
20140184678 | HEAD CHIP, METHOD OF MANUFACTURING HEAD CHIP, LIQUID JET HEAD, AND LIQUID JET APPARATUS - In a head chip, a cover plate includes a positioning reference provided at a position facing at least one of nozzle holes through at least one liquid jet channel. The positioning reference can be detected from underneath the nozzle plate through the nozzle hole and the liquid jet channel. A method of manufacturing the head chip includes a positioning step for positioning the nozzle plate by detecting the positioning reference provided in the cover plate. | 07-03-2014 |
20140218429 | INKJET RECORDING APPARATUS AND INKJET RECORDING METHOD - An inkjet recording apparatus includes an inkjet recording head including a first nozzle having a discharge port, a pressure chamber having therein an element, and a flow path, a second nozzle having a flow resistance lower than that of the first nozzle, and a supply port configured to, after discharge of an ink droplet from at least one of the first nozzle and the second nozzle, supply ink to the nozzle, a storage unit storing a rank value depending on a size of a portion relating to the flow resistance, a reading unit configured to read the rank value, a determination unit configured to determine a number of discharges per unit time of each nozzle based on the rank value read by the reading unit, and a control unit configured to control each nozzle to discharge the ink droplet based on the number of discharges determined by the determination unit. | 08-07-2014 |
20140232771 | PRINTING CONTROL APPARATUS AND PRINTING CONTROL METHOD - In a printing apparatus capable of printing the same pixel by a plurality of print elements, a print speed is increased, and further, a partial frequency of use of each of the print elements is reduced, so as to prolong the lifetime of the print head. In view of this, dithering is used as a pseudo-halftone representing method, and further, a distribution pattern for use in creating image data to be distributed to each of the plurality of print elements is switched. | 08-21-2014 |
20140292858 | IMAGE RECORDING DEVICE - An image recording device includes a head unit having a print head and a first substrate, a second substrate provided separate to the head unit, a support member that supports the head unit and the second substrate while a first positional relationship in which the head unit and the second substrate are close to each other and a second positional relationship in which the head unit and the second substrate are away from each other are changed. Moreover, in the first positional relationship, the head unit and the second substrate are connected to each other to form an electric signal supply path from the second substrate to the head unit, and, conversely, in the second positional relationship, the connection between the head unit and the second substrate is released such that the head unit is dismountable from the support member. | 10-02-2014 |
20140292859 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head which includes a head unit in which a plurality of unit heads are arranged, a controller that transmits a control signal to the head unit, and a frame on which a plurality of the head units and the controllers are fixed, wherein the frame includes a head unit fixing section in which the head units are arranged side by side with the nozzle surface being exposed and a controller fixing section which is stacked on the head unit fixing section on the side opposite to the nozzle surface and in which the controllers are arranged side by side in an arrangement direction of the head units, the controller fixing section is composed of at least two layers, where the controllers which correspond to the adjacent head units are arranged alternately in the at least two layers in the controller fixing section. | 10-02-2014 |
20140300656 | IMAGE RECORDING APPARATUS, CONTROL METHOD THEREOF, AND RECORDING MEDIUM - A method for controlling an image recording apparatus includes: detecting a defective recording element out of a plurality of recording elements on a recording head for recording an image on a recording medium; performing a correction processing including suspension of an output of the defective recording element and increase of an output of a recording element at least adjacent to the defective recording element according to a detection result; determining whether or not an image defect is caused in the image by the suspension of output of the defective recording element, before performing the correction processing, according to the detection result; selecting a forced recording element that is forced to output ink out of defective recording elements when it is determined that the image defect is caused; and suspending the output of the defective recording element other than the forced recording element when the forced recording element is selected. | 10-09-2014 |
20140307016 | TENSION MODULE FOR WIDE FORMAT INKJET PRINTERS - Systems and methods for printing are described. One example is a tension module for a printer including a throughput roller including a length to diameter ratio of at least 10:1 and a material on the surface thereof having a friction coefficient value less than 1. In addition, the module includes a plurality of pinch rollers arranged parallel to the throughput roller and, the pinch rollers supporting the throughput roller and providing a pressure on a print medium when passed along the throughput roller. Further, the module includes a motor to rotate the throughput roller. Still further, the module includes a tension lever including a plurality of stops, each of the stops being associated with one of a plurality of tension settings. Manipulation of the tension lever between two of the stops adjusts the pressure between the throughput roller and the pinch rollers on the print medium. | 10-16-2014 |
20140320561 | METHOD FOR CREATING A PRINTED IMAGE COMPOSED OF SECTIONS - A method for creating a printed image with sections on an object using at least two inkjet print heads, includes forming the image of first and second image sections, in a y direction at a fixed angle different than 0° and 180° relative to an object conveying direction, printing print dots of the first and second sections using first and second heads having first and second inkjet nozzles with the sections partially overlapping in a region and potentially forming a light or dark line, defining first and second complementary nozzle fields of the first and second heads to be active for each column of dots in the y direction, and placing a joint between the fields in the overlap region in a light or dark area of the column for each column of dots, avoiding potentially disruptive light or dark lines at the joint and keeping the image without defect. | 10-30-2014 |
20140375717 | INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - Printing with color material inks is performed in an area (i.e., a unit area) having a width of 128 pixels by scanning four times. In contrast, in a mask pattern for a colorless ink, there are no ON dots at portions corresponding to the first pass to the fourth pass whereas there are ON dots in mask areas corresponding to a fifth pass and a seventh pass. Specifically, printing with respect to the unit area is completed by scannings eight times consisting of alternately forward scan and backward scan. In this case, the printing with the colorless ink is performed in the fifth pass and the seventh pass, that is, scanning in the same direction. In this manner, the dot printing misregistration with the colorless ink is reduced, thus suppressing the fluctuation of coverage with respect to the color material inks. | 12-25-2014 |
20150009254 | PRINTING APPARATUS - [Problems to be Solved] | 01-08-2015 |
20150042711 | INKJET RECORDING METHOD AND RECORDING APPARATUS - The present invention addresses the problem of improving the quality of recorded images in ink jet recording technologies in which a plurality of nozzle lines that discharge ink of the same color are used. As a solution, nozzle lines ( | 02-12-2015 |
20150042712 | LIQUID EJECTION HEAD, LIQUID EJECTING APPARATUS, AND METHOD FOR MANUFACTURING LIQUID EJECTION HEAD - A liquid ejection head includes a substrate and a flow path forming member. Energy generating elements that generate energy with which a liquid is ejected are formed on the substrate. The flow path forming member is disposed on the substrate and a flow path which encloses the energy generating elements is formed using the flow path forming member. Plural ejection ports that are in communication with the flow path are formed in the flow path forming member. A groove portion extending obliquely with respect to an X direction in which adjoining ejection ports are arranged is formed between the adjoining ejection ports in the flow path forming member. | 02-12-2015 |
20150042713 | RECORDING APPARATUS AND PATTERN FORMING METHOD - A recording apparatus to record an image to a recording medium includes a recording head having nozzles arranged in a predetermined direction in a nozzle array, scanning, recording control, obtaining, determining, and adjusting units. The scanning unit scans the recording head to the recording medium in a crossing direction. The recording control unit causes the recording head to record an adjusting pattern and a detecting pattern by discharging ink from a nozzle group. The obtaining unit obtains an information regarding number of defective discharge nozzles in the nozzle group based on the detecting pattern. The determining unit determines an adjusting value based on the recorded adjusting pattern where the indicated number is smaller than a threshold value, and not based on the adjusting pattern where the indicated number is larger than the threshold value. The adjusting unit adjusts the recording head recording position based on the determined adjusting value. | 02-12-2015 |
20150062222 | FLUID EJECTION DEVICE - A fluid ejection device is described. In an example, the fluid ejection device includes a substrate having a chamber formed thereon to contain a fluid. A thin-film stack is formed on the substrate having a resistor formed under the chamber. A transistor is formed in the substrate and coupled to the resistor. A circuit is formed in the substrate coupled to a gate of the transistor to selectively cause the transistor either to supply a firing current to the resistor for ejecting the fluid from the chamber or to dissipate power to warm the device. | 03-05-2015 |
20150070426 | INKJET PRINTER - Positions of a plurality of nozzles of at least one first nozzle array of a plurality of nozzle arrays and positions of a plurality of nozzles of at least one second nozzle array of the plurality of nozzle arrays other than the at least one first nozzle array are offset from one another in a nozzle arrangement direction. A controller is configured to control ejection timings of ink from the plurality of nozzle arrays such that dots of the ink of the colors for each same pixel are offset from each other by an equal offset amount in the nozzle arrangement direction and a relative movement direction orthogonal to the nozzle arrangement direction. | 03-12-2015 |
20150070427 | PRINTING APPARATUS AND PRINTING POSITION ADJUSTING METHOD THEREOF - A printing apparatus prints by discharging inks from respective nozzle arrays, the printhead having a plurality of nozzle arrays including at least a first nozzle array, a second nozzle array, and a third nozzle array, and the first nozzle array and the second nozzle array being arrayed to be shifted in a nozzle arrayed direction. The printing apparatus controls the first and second nozzle arrays to discharge inks to form a plurality of first patterns. The printing apparatus controls the third nozzle array to discharge inks to form second patterns while changing a shift amount in a direction which intersects with the nozzle arrayed direction with respect to the plurality of first patterns. The printing apparatus calculates an adjustment value required to adjust relative printing positions between the first nozzle array and the third nozzle array in the intersecting direction using the first patterns and the second patterns. | 03-12-2015 |
20150077452 | Inkjet Printer - The controller is configured to: drive a color ink ejection head and a functional ink ejection head to print test images on a sheet in a plurality of types of test patterns between which a positional relationship of a dot of a color ink and a dot of a functional ink to be formed on the sheet is varied; determine an overlapping degree of the dot of the color ink and the dot of the functional ink in the respective printed test images on a basis of a color attribute of the respective printed test images; and control the functional ink ejection head in printing on a basis of a control content corresponding to at least one test pattern selected of the plurality of types of the test patterns on a basis of the determined overlapping degrees. | 03-19-2015 |
20150077453 | INKJET PRINTING APPARATUS - A controller determines a correspondence relationship among nozzles in a plurality of nozzle arrays in each head unit so that a positional relationship among nozzles corresponding to the same pixel in each nozzle array becomes the same in all of the head units irrespective of a positional relationship between nozzles having the same number in order from one side in a main scanning direction in two nozzle arrays in each head unit. | 03-19-2015 |
20150085006 | METHOD AND ARRANGEMENT FOR PRINTING A THREE-DIMENSIONAL SURFACE - A method of printing includes using a printing head that comprises straight parallel rows of printing nozzles to print a printed image on a surface of a conically rotationally symmetrical region of an outer wall of an object by controlling parallel rows of printing nozzles taking into account pixel density to be achieved in the printed image, setting a printing density of a printing nozzle with regard to at least one reference parameter, and setting a variable offset between a pair of the rows based on a change in relative speed between the printing head and the conically rotationally symmetrical region of the object. | 03-26-2015 |
20150103110 | IMAGE FORMING DEVICE AND METHOD OF IMAGE FORMING - An image forming device which includes a first nozzle group, a second nozzle group, and are arranged by being deviated from the first nozzle group to one side in a predetermined direction, a light irradiation unit which is extended at least in the predetermined direction, a control unit which repeats an ejection operation in which the photo-curable ink is ejected from the nozzle while moving the nozzle group and the light irradiation unit in a direction intersecting the predetermined direction, and a transport operation of the medium in a state where a non-ejection region where the ink is not ejected is provided between the first nozzle group and the second nozzle group in a predetermined direction, and overlappingly forms a main image using the first photo-curable ink, and a background image using the second photo-curable ink. | 04-16-2015 |
20150116404 | PRINTING DEVICE, PRINTING METHOD, AND MEDIUM HAVING RECORDED PROGRAM - The controller has a field discriminating part configured to discriminate an overlap field of a light-shielding ink field and a special glossy ink field, and an ink volume controller configured to allow, in the overlap field, the ink volume of light-shielding ink to be brought lower than the ink volume of the light-shielding ink determined in accordance with the image data, irrespective of the overlap field. | 04-30-2015 |
20150306871 | INKJET PRINTING DEVICE AND PRINTING METHOD - The invention has an object to provide an advantageous technology that minimizes banding that may appear on an image printed using a print head having a nozzle row ( | 10-29-2015 |
20150306872 | LIQUID DISCHARGING APPARATUS AND LIQUID DISCHARGE METHOD - A liquid discharging apparatus includes: a liquid discharge head including plural nozzle rows each arrayed with plural nozzles and discharging liquid droplets onto a workpiece by a multi-pass method using n recording passes (n is an integer of 3 or more); and a head drive section that controls driving of n nozzle groups corresponding to the n recording passes in each of the nozzle rows with a discharge duty upper limit specific to each nozzle group, and for a pair of nozzle groups adjacent across the nozzle rows, when controlling driving of one of the nozzle groups with a discharge duty upper limit being the maximum discharge duty upper limit of one nozzle row containing the one nozzle group, controls driving of the other nozzle group with a discharge duty upper limit that is not the maximum discharge duty upper limit of another nozzle row containing the other nozzle group. | 10-29-2015 |
20150314596 | LIQUID DISCHARGE APPARATUS AND CONTROL METHOD OF LIQUID DISCHARGE APPARATUS - A liquid discharge apparatus includes a piezoelectric element in which a drive signal is applied and which is displaced to eject a liquid; a zeroth wire of a zeroth potential; a first wire of a first potential that is higher than the zeroth potential; a second wire of a second potential that is higher than the first potential; and a connection path selecting section that electrically connects one end of the piezoelectric element to the zeroth wire, the first wire, or the second wire in response to a voltage of a source drive signal that controls the voltage of the drive signal and a hold voltage of the piezoelectric element. Here, a first potential difference from the zeroth potential to the first potential is different from a second potential difference from the first potential to the second potential. | 11-05-2015 |
20150314598 | METHODS FOR PRINTING WITH A PRINTHEAD - A method for printing with a printhead, comprising: generating a first imaging matrix comprising cells each containing information related to the ink to be deposited on a corresponding area of the print medium; on the basis of said first matrix, generating a second imaging matrix, comprising cells each containing information related to the ink drops to be deposited on a corresponding area of the print medium; wherein some cells of the second matrix are prioritized and for some of them the information related to the ink drops depends on a cell of the first matrix that corresponds to a different area of the print medium than the area of said prioritized cell of the second matrix; such that upon printing, nozzles of the printhead associated with some prioritized cells fire ink that in the first matrix is associated with areas of the print medium corresponding to non-prioritized cells. | 11-05-2015 |
20150343764 | PRINTING DEVICE AND PRINTING METHOD - A printing device includes a printing head and a control unit. The printing head has a nozzle row with a one end side nozzle group of nozzles of one end side of the nozzle row, an other end side nozzle group of nozzles of an other end side of the nozzle row, and a center nozzle group of nozzles of the nozzle row, which does not correspond to the one and other end side nozzle groups. The control unit is configured to discharge the ink on a designated area on a print medium from the nozzles included in the center nozzle group and the other end side nozzle group with a first movement of the printing head and discharge the ink on the designated area from the nozzles included in the center nozzle group and the one end side nozzle group with a second movement next to the first movement. | 12-03-2015 |
20160016421 | INKJET PRINTING DEVICE AND PRINTING METHOD - An aim is to provide a technique for obtaining a higher quality print image by reducing a banding caused upon printing using a printing head having nozzle rows. As a solution, an activated nozzle row is reselected each time when the activated nozzle row has discharged ink for a preset number of times, and in each scan, an interval by which the activated nozzle row discharges ink in a main scanning direction is set to be an integer multiple of a resolution of an image to be printed on a print medium in the main scanning direction. | 01-21-2016 |
20160023471 | DIGITAL PRINTING SYSTEM FOR CYLINDRICAL CONTAINERS - A digital printing system for cylindrical containers having a plurality of print stations for each section of the cylindrical container being printed. Each of the four stations is dedicated to one of four specific colors, Cyan, Magenta, Yellow and Black (CMYK). | 01-28-2016 |
20160059548 | CROSS-TALK SUPPRESSION OF ADJACENT INKJET NOZZLES - A method of cross-talk suppression and a system therein are disclosed. The method may include receiving a print pulse to simultaneously fire ink from an array of adjacent nozzles of an inkjet printhead; and actuating groups of three or more adjacent nozzles of said array of nozzles with a time delay between actuations of said three or more nozzles of the groups. | 03-03-2016 |
20160089882 | PRINTING APPARATUS, CONTROL DEVICE, AND IMAGE PROCESSING METHOD - Image data which defines an ink amount to be ejected from each of a plurality of nozzles is stored in memory, the image data which is stored in the memory is subjected to an interpolation process corresponding to a faulty nozzle of a print head, the image data which is subjected to the interpolation process is subjected to a rotation process and the image data which defines the ink amount to be ejected and corresponds to each of the plurality of nozzles to be stored in the memory so as to be in a read-out order of the memory when the print head is positioned at a certain point in relation to the print medium, and the image data which is subjected to the rotation process is read out and output as the print data. | 03-31-2016 |
20160096363 | PRINTING APPARATUS AND DRIVING METHOD THEREFOR - A printing apparatus comprising a printhead including two nozzle arrays neighboring in a first direction, each array including nozzles arrayed in a second direction, a determining unit for determining discharge nozzles and non-discharge nozzles for each array, a conveying unit for conveying a sheet to the first direction, a unit configured to perform (a) determining printing data such that dots corresponding to the non-discharge nozzles in one array are printed by the discharge nozzles in another array, (b) inserting null data into the printing data based on a shift amount of between printing positions of the two nozzle array, and (c) newly determining discharge nozzles and non-discharge nozzles by the determining unit based on the printing data including the null data. | 04-07-2016 |
20160096364 | PRINTING APPARATUS AND DRIVING CONTROL METHOD FOR PRINTHEAD - A printing apparatus including a printhead and a print control unit, wherein the printhead includes two nozzle arrays, each arranged in a first direction and including nozzles arranged along a second direction, the print control unit performs a first operation of expanding print data onto a memory, a second operation of selecting, for each nozzle array, some of the nozzles as non-driving nozzles and the remaining nozzles as driving nozzles, and a third operation of distributing the expanded print data to the two nozzle arrays such that dots corresponding to the non-driving nozzles of one nozzle array are printed by the driving nozzles of the other nozzle array. | 04-07-2016 |
20160107439 | Nozzle Row Driving Data Conversion Apparatus and Liquid Droplet Ejecting Apparatus - A liquid droplet ejecting apparatus includes (n+m) nozzle rows in each of which a plurality of nozzles through which liquid droplets are ejected onto a printing medium are arranged; a nozzle row driving data generation portion configured to generate n sets of nozzle row driving data for the (n+m) rows of nozzles each for driving a corresponding one of the (n+m) nozzle rows; and a nozzle row driving data conversion portion configured to convert the generated n sets of nozzle row driving data that are associated with the (n+m) rows of nozzle row driving data into (n+m) sets of nozzle row driving data each of which is associated with a corresponding one of the (n+m) rows of nozzle row driving data. | 04-21-2016 |
20160121604 | ELEMENT SUBSTRATE, PRINTHEAD, AND PRINTING APPARATUS - An element substrate capable of suppressing occurrence of electromagnetic noise upon driving printing elements on an element substrate with long wiring lengths, preventing an operation error, and printing a high-quality image is provided. In the element substrate, plural element substrates each including printing elements are arrayed in an arrayed direction of the printing elements. Each element substrate including a wiring for supplying a driving power to drive the printing elements, and a ground wiring from the printing elements is configured as follows. Each element substrate includes a delay circuit for delaying a heat enable signal to drive the printing elements and supplying it to each printing element, and a switchover circuit for switching over, in accordance with a control signal, a delay sequence when supplying the heat enable signal to each printing element. | 05-05-2016 |
20160193833 | INK-JET PRINTER | 07-07-2016 |