Patent application number | Description | Published |
20090002777 | RECORDING APPARATUS - A recording apparatus, performing recording by time-division driving of multiple recording elements on a recording head in increments of blocks, includes: a storing unit storing recording data; an obtaining unit obtaining information relating to inclination of the recording elements in the main scanning direction; a changing unit changing, in increments of recording elements, the main scanning direction storage position of recording data stored in the storing unit to be provided to recording elements of a group, configured of consecutive recording elements in each block of the recording elements, based on the obtained information; and a determining unit determining the driving order of the recording elements subjected to time-division driving in increments of the blocks, for each of the scans; wherein recording is performed based on recording data with the main scanning direction storage position having been changed by the changing unit, and the driving order determined by the determining unit. | 01-01-2009 |
20100156981 | INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - An ink jet printing apparatus and an ink jet printing method are provided in which information about an ink amount ejected on each of unit areas into which a preceding print medium is divided and information about a size of a following print medium are acquired. A delay time for delaying a printing operation for the following print medium is set based on the information about the ink amount ejected on unit areas which are decided among the divided unit areas according to the information about the size of the following print medium. | 06-24-2010 |
20100238226 | PRINTING APPARATUS AND PRINTING CONTROL METHOD - The present invention uses a temperature sensor to sense the temperature of a print head configured to eject ink, and senses the environmental temperature of a printing apparatus. The temperature of the print head is corrected based on the environmental temperature only if information from the temperature sensor is different from the last information acquired. | 09-23-2010 |
20110109689 | RECORDING APPARATUS - An apparatus includes a supply unit having a humidifying portion that supplies humidified gas near a nozzle array of a line-type recording head. In correspondence to displacement of the recording head in a direction of the nozzle array, at least one of an introducing direction and an introducing position of the supplied humidified gas can be changed. | 05-12-2011 |
20110109690 | RECORDING APPARATUS - A supply unit is provided to supply humidified gas near a nozzle array of a line-type recording head. The flow-rate distribution of the supplied humidified gas in a direction of the nozzle array is changeable in accordance with a conveying region where a sheet is conveyed while opposing the nozzle array. | 05-12-2011 |
20110109691 | RECORDING APPARATUS - An apparatus includes a recording head having a sealing portion arranged in proximity to nozzle arrays and protruding beyond a nozzle surface. A wiper unit configured to wipe the nozzle surface of the recording head has a first wiper blade and a second wiper blade, and the first wiper blade is arranged to be inclined by an angle θ | 05-12-2011 |
20110109710 | RECORDING APPARATUS AND RECORDING METHOD - First humidified gas is supplied from a first supply port to a sheet to be conveyed, thereby increasing the moisture content of the sheet. Simultaneously, second humidified gas is supplied to a space where nozzles of the inkjet recording head are exposed, from a second supply port provided at a position closer to the inkjet recording head than the first supply port, thereby increasing the atmosphere humidity of the space. The part of the sheet of which the moisture content has been increased is made to enter the space where the atmosphere humidity has been increased, and recording is performed by the inkjet recording head. | 05-12-2011 |
20110115846 | RECORDING APPARATUS - An apparatus includes a recording head arranged so as to oppose a sheet moving in a first direction, in which a plurality of first nozzle chips and a plurality of second nozzle chips each having a nozzle array are arranged as different arrays in a second direction crossing the first direction, and in which the first nozzle chips and the second nozzle chips adjacent to each other are shifted from each other in the second direction, a first suction unit opposed to the first nozzle chips and configured to suction ink from a part of the nozzle arrays included in the first nozzle chips, a second suction unit opposed to the second nozzle chips and configured to suction ink from a part of the nozzle arrays included in the second nozzle chips, a suction holder configured to retain the first suction unit and the second suction unit, and a movement mechanism configured to cause relative movement between the recording head and the suction holder in the second direction, wherein the first suction unit and the second suction unit are shifted from each other in the second direction in correspondence with the shift between the first nozzle chips and the second nozzle chips. | 05-19-2011 |
20110115863 | RECORDING APPARATUS - An apparatus includes a humidifying unit that generates humidified gas, a drying unit that dries ink applied to a sheet by a recording unit, a first duct that supplies gas discharged from the drying unit to at least one of the humidifying unit and the recording unit, and a second duct that supplies the humidified gas generated by the humidifying unit to the recording unit. | 05-19-2011 |
20110134185 | RECOVERY PROCESSING METHOD FOR PRINT HEAD, AND INKJET PRINTING APPARATUS USING THE SAME - Wet wiping processing is performed on an ink ejection opening forming surface of a print head by use of a wiper. Then, as bubble removal processing, the print head is heated by use of either an electrothermal conversion element or a heat generating element located inside the print head, and then a control unit causes the print head to perform preliminary ejection K1 and preliminary ejection K2. | 06-09-2011 |
20110211008 | PRINT APPARATUS - A first reading unit that reads a pattern or an image formed on a sheet by a print unit for recognizing a print unit state, a second reading unit that reads a cut mark formed on the sheet on a downstream thereof, a cutter that cuts the sheet on a downstream thereof, and a reverse unit that reverses the sheet fed to the print unit again are provided. In duplex printing, the sheet where images are sequentially printed on a first surface is led to the reverse unit, the front and rear faces are reversed, and the sheet is fed to the print unit again. The sheet where images and cut marks are sequentially printed on a second surface is cut by the cutter for each piece and discharged. The sheet is cut on the basis of a reading of the cut mark by the second reading unit. | 09-01-2011 |
20110211018 | INKJET RECORDING APPARATUS AND METHOD FOR CONTROLLING IT - In order to efficiently perform preliminary ejection of ink at a bend of an ink circulation passage, the number of preliminary ejections of a nozzle group located on the outer side of the bend is set larger than the number of preliminary ejections of a nozzle group located in the middle of the bend. | 09-01-2011 |
20110211899 | PRINT CONTROL METHOD AND PRINT APPARATUS - A cut mark is recorded in an area between one image and the next image to be printed, and the recorded cut mark is to be detected. When the cut mark cannot be detected, a position of the cut mark is estimated based on information on an already detected cut mark and information on a length of the image printed after said already detected cut mark. A first cut position and a second cut position for cutting off the area are set based on the estimation. | 09-01-2011 |
20110254903 | PRINTING APPARATUS - Provided is a printing apparatus in which bubbles in a print head are easily removed. The printing apparatus includes a first one-way valve disposed between the pump and the ink tank in the collection channel, the first one-way valve allowing movement of ink from the pump to the ink tank and blocking movement of ink from the ink tank to the pump; a circulation channel that connects the ink tank to the collection channel at a position between the pump and the first one-way valve, the circulation channel enabling circulation of ink from the ink tank, through the print head, and to the ink tank; and a second one-way valve disposed in the circulation channel, the second one-way valve allowing movement of ink from the ink tank to the pump and blocking movement of ink from the pump to the ink tank. | 10-20-2011 |
20110273503 | INKJET PRINTING APPARATUS AND METHOD - A printing apparatus includes a plurality of inkjet print heads to which humidified air is supplied to retain the humidity in the print heads. Ink colors for the plurality of heads are arranged in a sequence corresponding to ink characteristics. The plurality of print heads are arranged in a sequence such that a print head configured to eject ink characterized by having a larger amount of volatile components evaporated within a predetermined time is located in a more upstream area. | 11-10-2011 |
20110279525 | RECORDING APPARATUS - An apparatus includes a recording head having nozzle chips arranged in a staggered configuration along a second direction that intersects a first direction in which a sheet is conveyed, a first suction portion corresponding to a first row of nozzle chips in the staggered configuration, and a second suction portion corresponding to a second row of nozzle chips. The first suction portion and the second suction port are in a positional relationship in which they are displaced in the second direction so as to correspond to displacement between a first nozzle chip in the first row and its neighboring second nozzle chip in the second row in the second direction. The apparatus further includes a positioning member having a plurality of reference surfaces for use in positioning the recording head at different locations in a third direction that intersects the first direction and the second direction. | 11-17-2011 |
20110279612 | INKJET PRINTING APPARATUS AND CALIBRATION METHOD - An apparatus includes: a drying unit to dry a printing medium on which an image was printed using an inkjet head; a humidification unit to humidify the printing medium that was dried by the drying unit so that the moisture content of the printing medium becomes the equilibrium state in the ambient environment; a colorimetric unit to perform colorimetry on the printing medium that was humidified by the humidification unit; and a calibration unit to calibrate printing properties on the basis of the result of colorimetry by the colorimetric unit. | 11-17-2011 |
20110279832 | INKJET PRINTING APPARATUS AND CALIBRATION METHOD - A waiting time Ts is decided on the basis of ink type information and ink feed amount information, referring to waiting time table A (Step | 11-17-2011 |
20110298849 | INKJET PRINTING APPARATUS - In a line-head type inkjet printing apparatus that ejects a plurality of types of inks, an inkjet printing apparatus is provided in which the change of its ejection properties different depending on the type of ink is prevented from occurring. The line-head type printing apparatus includes an acquisition unit that counts the ejection number of liquid from each of print heads in each of a plurality of print heads. Furthermore, the printing apparatus compares the ejection number of liquid from each of the print heads counted by the acquisition unit with a threshold value set for each of the print heads. The printing apparatus includes a change unit that can move a holder in the main scanning direction when the counted ejection number of liquid exceeds the threshold value set for the print head. | 12-08-2011 |
20110298859 | RECORDING METHOD AND RECORDING APPARATUS - A first humidified gas is supplied through a first supply port to a sheet. A second humidified gas is supplied to a space where nozzles of an inkjet recording head are exposed through a second supply port located at a position closer to the recording heads than the first supply port, to increase atmosphere humidity in the space. The sheet portion having a moisture content increased by the humidification in advance is advanced into the space having the increased atmosphere humidity, to record on the sheet using the inkjet recording head. An amount of humidification with the first humidified gas is set according to at least one recording condition. | 12-08-2011 |
20110310152 | INKJET PRINTING DEVICE AND INKJET PRINTING METHOD - An inkjet printing device that performs printing on a print medium with a print head including a nozzle for discharging ink, includes: a transport unit transporting the print medium; a printing unit discharging the ink while transporting the print medium such that the printing unit prints an image for printing and an image formed by a preliminary discharge; a first limiting unit limiting, based on image data on the image for printing, an ink amount to be discharged such that the amount of ink per unit area is equal to or less than an upper limit Alim; and a second limiting unit limiting an ink amount to be discharged for the image formed by the preliminary discharge such that the amount of ink per unit area is more than the upper limit Alim and is equal to or less than an upper limit Blim. | 12-22-2011 |
20110310155 | INKJET RECORDING HEAD AND INKJET RECORDING METHOD - The present invention provides a recording apparatus including recording heads each including a plurality of nozzle arrays that are arranged so as to overlap, wherein the width with which the overlapping portions of the recording heads for colors that are simultaneously used with a relatively high frequency overlap in an intersecting direction that intersects an array direction of nozzles is smaller than the width with which the overlapping portions of the recording heads for colors that are simultaneously used with a relatively low frequency overlap in the intersecting direction. | 12-22-2011 |
20110310178 | INKJET RECORDING APPARATUS AND INKJET RECORDING METHOD - The present invention provides a recording apparatus including recording heads each including a plurality of nozzle arrays that are arranged so as to overlap, wherein overlapping portions of the recording heads for two different colors are separated from each other with a distance therebetween in an array direction of nozzles. | 12-22-2011 |
20110316921 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - When an image is recorded using a multichip recording head including a plurality of chips each having a plurality of nozzle arrays, a change in image density can occur due to a registration error between chips in an overlapping part where two chips are connected. To suppress the change in image density, input image data is distributed to two chips such that there are dots overlapping each other between the two chips in the overlapping part. | 12-29-2011 |
20120026229 | INKJET PRINTING APPARATUS - To provide an inkjet printing apparatus that suppresses occurrence of image deterioration, such as a texture, a moire, and a streak in a printing result. In order for this to be achieved, a level is set up to a overlapping portion of a chip of a print head depending on dot impact accuracy, and a print data distribution rate of each chip in the overlapping portion is determined according to the level. | 02-02-2012 |
20120114188 | RECORDING APPARATUS AND RECORDING SYSTEM - A process of detecting a defective recording element and a process of correcting the defective recording element are performed with appropriate processing loads. When the detection process and the correction processes are performed with small loads, for example, at a time of recording, a resolution used for reading an inspection pattern is set lower than that set in a case where the processes can be performed with small loads, for example, at down time before recording. The reading resolution to be set may be determined by an apparatus in accordance with a processing load or may be arbitrarily determined by a user. | 05-10-2012 |
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 |
20120206524 | INKJET PRINTING APPARATUS AND PRINT HEAD RECOVERY METHOD - An inkjet printing apparatus and a print head recovery method are provided according to which, in an environment in which dust (e.g., paper dust) is easily attached to the periphery of an ejection port of a print head, the print head is subjected to a recovery operation depending on the level of the attached dust. The inkjet printing apparatus has a cutter unit for cutting a print medium and a recovery unit for performing the recovery operation by wiping the ejection port formation portion at which the ejection port is formed of the print head while sucking the ejection port formation portion. When the passing number showing how many times the cut part of the print medium cut by the cutter passes the printing position is equal to or higher than a threshold value, the recovery means subjects the print head to the recovery operation. | 08-16-2012 |
20120299996 | INK JET PRINTING APPARATUS - An ink jet printing apparatus is disclosed that can more appropriately clean the nozzle faces of line-type print heads. The apparatus includes: a print head having nozzle chips, each having nozzle arrays arrayed on a common chip mounting face of the print head; a first cleaning unit configured to wipe the chip mounting face including wiping nozzle faces of the nozzle chips; a second cleaning unit configured to suction the chip mounting face including suctioning nozzle faces; a moving mechanism configured to move the first and second cleaning units relative to the print head in a first cleaning direction and in a second cleaning direction opposite to the first cleaning direction; and a selection unit configured to select a cleaning unit to be used for cleaning in the first and second cleaning directions from the first and second cleaning units, respectively. | 11-29-2012 |
20130076811 | INKJET RECORDING APPARATUS - An inkjet recording apparatus includes a recording head configured to discharge ink, a first ink tank configured to store ink to be supplied to the recording head, a circulation path configured to circulate ink between the first ink tank and the recording head, a measurement unit configured to measure an ink temperature in the circulation path, a second ink tank configured to replenish ink to the circulation path, and a control unit configured to control replenishment of ink from the second ink tank to the circulation path based on the ink temperature measured by the measurement unit. | 03-28-2013 |
20130106929 | INKJET RECORDING APPARATUS | 05-02-2013 |
20130257976 | PRINTING APPARATUS AND METHOD FOR CONTROLLING PRINTING APPARATUS - To provide an ink jet printing apparatus which can reduce waste ink as much as possible and shorten the amount of time spend on the following wiping process, and a recovery operation method therefor, whereby a first process and a second process are carried out, the first process for discharging ink that does not contribute to the printing from the print head while supplying ink from the ink reservoir portion to the print head by way of the first ink passage connected to one end of the print head, and the second process for discharging ink that does not contribute to the printing from the print head while supplying ink from the ink reservoir portion to the print head by way of the second ink passage connected to the other end of the print head. | 10-03-2013 |
20140009529 | INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD - An ejection complement process is performed during which both a usual ejection failure and a sudden ejection failure can be appropriately coped with, without being accompanied by a frequent maintenance process. In a case wherein sequential printing is not currently being performed, the first detection process is performed with a high accuracy while being accompanied by the maintenance process, and in a case wherein sequential printing is currently being performed, the second detection process that requires only a small process load is performed at a predetermined timing without being accompanied by the maintenance processing. At this time, when the number of ejection failed nozzles detected in the second ejection process has reached a predetermined value or greater, the maintenance process is performed, and only the information for the ejection failed nozzle, detected in the second detection process, is reset. | 01-09-2014 |
20140022303 | INKJET RECORDING HEAD AND INKJET RECORDING METHOD - The present invention provides a recording apparatus including recording heads each including a plurality of nozzle arrays that are arranged so as to overlap, wherein the width with which the overlapping portions of the recording heads for colors that are simultaneously used with a relatively high frequency overlap in an intersecting direction that intersects an array direction of nozzles is smaller than the width with which the overlapping portions of the recording heads for colors that are simultaneously used with a relatively low frequency overlap in the intersecting direction. | 01-23-2014 |
20140092164 | RECORDING APPARATUS AND RECORDING SYSTEM - A process of detecting a defective recording element and a process of correcting the defective recording element are performed with appropriate processing loads. When the detection process and the correction processes are performed with small loads, for example, at a time of recording, a resolution used for reading an inspection pattern is set lower than that set in a case where the processes can be performed with small loads, for example, at down time before recording. The reading resolution to be set may be determined by an apparatus in accordance with a processing load or may be arbitrarily determined by a user. | 04-03-2014 |
20140247307 | INKJET PRINTING METHOD - A printing method is performed on a plurality of inkjet print heads to which humidified air is supplied to retain the humidity in the print heads. Ink colors for the plurality of heads are arranged in a sequence corresponding to ink characteristics. The plurality of print heads is divided into groups, with one of the groups being subjected to preliminary ejection on a sheet. The other print head group not subjected to preliminary ejection is located in a more upstream area with respect to a conveyance direction of the sheet. | 09-04-2014 |
20150062225 | PRINTING APPARATUS AND METHOD FOR CORRECTING PRINTING POSITION SHIFT - A printing apparatus, including: printing unit; conveying unit; print control unit; correcting unit configured to determine, in printing an image on each of a plurality of sets of the same type of print medium, a correction value for correcting printing position shift between a plurality of nozzle arrays based on an inspection pattern printed on a preceding region of the print medium, and to correct the printing position between the plurality of nozzle arrays in the subsequent region of the print medium by using the determined correction value, wherein the correcting unit corrects, in printing on a leading end region of a set of print medium subsequent to the preceding set of print medium, the printing position shift by using the correction value used in printing on the preceding set of print medium. | 03-05-2015 |