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| Number | Title | Issue Date |
| 8083310 | Liquid droplet ejecting apparatus A liquid droplet ejecting apparatus includes an ejecting head configured to eject liquid droplets onto an ejected target element to form a of dots arranged at predetermined dot intervals in dot columns. The liquid droplet ejecting head has a flow passage unit includ... | 12/27/2011 |
| 8038244 | 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 pr... | 10/18/2011 |
| 8020956 | 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 ... | 09/20/2011 |
| 8016378 | Element substrate, printhead, and head cartridge This invention provides an element substrate having a heater selection circuit normally operable even in the use of voltage conversion circuits, which are arranged along the nozzle arrayed direction, each having a small-area in order to reduce the area of the elemen... | 09/13/2011 |
| 8007066 | Printing apparatus, printing method and method of manufacturing printing apparatus A printing apparatus of this invention includes: an output section that has a predetermined number of output terminals, and that outputs pixel data from each of the output terminals respectively; a cable that has the predetermined number of transmission lines for tr... | 08/30/2011 |
| 8007067 | Ink jet print head, ink jet printing apparatus, and method for manufacturing ink jet print head The present invention is able to print high-grade images by reducing the adverse effect of misdirection of ink in the joining portion between adjacent nozzle lines. To achieve this, an ink jet print head includes a plurality of chips in each of which adjacent nozzle... | 08/30/2011 |
| 7988251 | 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 pr... | 08/02/2011 |
| 7963622 | Liquid discharging device and electro optic device A liquid droplet-discharging device comprises: a droplet-discharging head having a plurality of nozzles that are arranged in a predetermined direction and discharge liquid droplets; a scanning unit for relatively moving the droplet-discharging head and a substrate t... | 06/21/2011 |
| 7959246 | Apparatus and method for driving first and second nozzle arrays A printing apparatus prints on a printing medium by using a printhead which has a first nozzle array including a plurality of nozzles from which a first nozzle amount of the ink is discharged and a second nozzle array including a plurality of nozzles from which a se... | 06/14/2011 |
| 7954918 | Liquid discharge head substrate and liquid discharge head having reduced heat enable wiring A selection circuit receives heat-enable signals to drive heaters, whereby signals are selected to drive the heaters. ... | 06/07/2011 |
| 7950762 | Recording apparatus A recording apparatus for effecting recording by scanningly moving a recording head, wherein the apparatus is provided with a group of a plurality of arrays each including a plurality of nozzles, wherein the group is responsive to one-color recording data, includes ... | 05/31/2011 |
| 7918522 | 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... | 04/05/2011 |
| 7909422 | Printing method, printing system, and print control apparatus A printing method includes: (A) creating print data by rearranging an order in which a plurality of pieces of pixel data which make up image data are arranged; and (B) based on the print data, alternately repeating a dot-forming process for forming, on a medium, a r... | 03/22/2011 |
| 7901022 | Printing apparatus, printing method and data processing method for compensating for abnormal nozzles in accordance with priorities A discharge failure nozzle, which cannot print, can be complemented by a printable discharge nozzle according to a simple, low-cost method capable of a high-speed process. A printing apparatus, which prints by using an inkjet head having nozzle arrays formed by arra... | 03/08/2011 |
| 7874631 | Printhead integrated circuit with open actuator test Provided is a printhead integrated circuit for an inkjet printer that has a nozzle and a corresponding actuator for ejecting ink through the nozzle. The Printhea IC also has drive circuitry for controlling the operation of the actuator. The drive circuitry has an op... | 01/25/2011 |
| 7871142 | Systems and methods for controlling ink jet pens A control circuit is provided for controlling ink jet pens having different numbers of internal select lines using external select lines that extend between the control circuit and the ink jet pens and that are shared by the ink jet pens. In one embodiment, the cont... | 01/18/2011 |
| 7857407 | Image forming apparatus The image forming apparatus includes: a liquid ejection head including a plurality of nozzles, the liquid ejection head ejecting a first liquid containing a coloring material through the nozzles onto a recording medium while the liquid ejection head and the recordin... | 12/28/2010 |
| 7837288 | Inkjet printhead and a method of inkjet printing An inkjet printhead includes a plurality of firing cells, each adapted to generate an ink droplet. The firing cells are arranged to form a plurality of matrices. A control circuit selectively activates the firing cells. The control circuit includes a first dynamic m... | 11/23/2010 |
| 7828403 | Printer control system and method for changing print mask height A system and a method for improving the quality of prints using a print mask for a printer with at least one printhead with a plurality of dot forming elements arranged in dot forming element sections, and at least one of the masks are altered so that mask data corr... | 11/09/2010 |
| 7819493 | 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 ha... | 10/26/2010 |
| 7815273 | Fluid ejection device A fluid ejection device includes groups of firing cells, sharing a common fire signal and a common address selection mechanism, each firing cell having a drop generator for ejecting fluid and a dynamic memory addressable by the common address selection mechanism. Ci... | 10/19/2010 |
| 7815272 | Element body for recording head and recording head having element body A stable voltage can be supplied from a voltage converter circuit and an increase in the area of the entire element body can be suppressed even if the number of recording elements increases and the element body becomes longer. An element body for a recording head in... | 10/19/2010 |
| 7815274 | Method for identifying misdirecting nozzles in an inkjet printing apparatus A method for detecting malfunctioning nozzles of an inkjet printer does not need any sensors, scanning means or processor time. The method includes printing a test pattern with an inkjet printer having at least one array of at least two nozzles, and for each array p... | 10/19/2010 |
| 7806497 | 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 pr... | 10/05/2010 |
| 7798589 | Image forming apparatus, image processing apparatus, and control method therefor In performing multi-pass printing by using a printhead having a plurality of nozzles, a scan duty setting unit sets a printing amount for each nozzle for each main scan of the printhead based on the scan duty setting LUT. A scan duty setting LUT changing unit update... | 09/21/2010 |
| 7794035 | 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 prel... | 09/14/2010 |
| 7780256 | Printhead IC with spaced nozzle firing sequence An inkjet printer comprising: an array of nozzles arranged into rows, each row consisting of a plurality of nozzle groups, the nozzles in each group being interspersed with nozzles from the other groups; and, associated drive circuitry for actuating the nozzles in t... | 08/24/2010 |
| 7780255 | Phase controlled, multi-pass inkjet recording apparatus and method An inkjet recording apparatus having a recording head unit having nozzle lines driven with multi-phase drive, a moving unit to move the recording head unit in a scanning direction crossing the nozzle lines, a clock generating unit, and a recording head control secti... | 08/24/2010 |
| 7762640 | Ink jet printing apparatus and ink jet printing method One pixel is sub-divided on the basis of ejection ports. Pixel patterns are provided at respective quantization levels, each of which are defined using dots having different sizes. Image data is processed using a pixel pattern selected according to the type of print... | 07/27/2010 |
| 7758141 | Printing apparatus for selectively driving heaters using a reduced number of data signal lines A discrimination circuit is provided for discriminating between acceptance and non-acceptance of image data transmitted to a device substrate for every group of recording elements. Thereby, data corresponding to a plurality of recording element groups can be receive... | 07/20/2010 |
| 7740334 | Printer system having controller with correction for nozzle displacement A printing system is provided having a carrier, a printhead module carried by the carrier and a controller. The printhead module has at least one row of ink ejection nozzles. Each of the nozzles is configured to eject ink in response to fire signals from the control... | 06/22/2010 |
| 7735948 | 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 ... | 06/15/2010 |
| 7722144 | Fluid ejection device A fluid ejection device includes a first fire line adapted to conduct a first energy signal having energy pulses, a second fire line adapted to conduct a second energy signal having energy pulses, a first address generator configured to provide first address signals... | 05/25/2010 |
| 7722145 | Ink jet head driving apparatus and ink jet head driving method An ink jet head driving apparatus for driving an ink jet head having plural nozzles to discharge supplied ink includes actuators provided correspondingly to the respective nozzles and to cause corresponding amounts of ink to be discharged from the nozzles by drive s... | 05/25/2010 |
| 7712856 | Pattern formation method, liquid droplet ejection apparatus and electro-optical device A pattern formation method for forming a pattern by ejecting a liquid droplet of a pattern forming material in a pattern formation region of a substrate includes: ejecting the liquid droplet at an outer periphery of the pattern formation region in an ejection direct... | 05/11/2010 |
| 7708365 | Liquid-discharge recording head A liquid-discharge recording head includes large nozzles for discharging large liquid drops and medium and small nozzles for discharging medium and small liquid drops that are smaller than the large liquid drops. The large nozzles are arranged on one side of an ink-... | 05/04/2010 |
| 7690744 | Printing apparatus for assigning data subjected to discharge by an abnormal nozzle in accordance with predetermined priorities A discharge failure nozzle, which cannot print, can be complemented by a printable discharge nozzle according to a simple, low-cost method capable of a high-speed process. A printing apparatus, which prints by using an inkjet head having nozzle arrays formed by arra... | 04/06/2010 |
| 7686410 | Printing alignment layers on LCD substrates with ink jet printing apparatus An apparatus for printing a liquid crystal alignment layer of uniform thickness on a substrate of an LCD and a method for its use include an ink jet head that prevents the formation of stripes in the alignment layer as a result of variations in thickness of the alig... | 03/30/2010 |
| 7686411 | Recording apparatus A recording apparatus for effecting recording by scanningly moving a recording head, wherein the apparatus is provided with a group of a plurality of arrays each including a plurality of nozzles, wherein the group is responsive to one-color recording data, includes ... | 03/30/2010 |
| 7681972 | Element substrate, recording head using the element substrate, and recording apparatus A buffer circuit for shaping a waveform of a logic signal is arranged where a line for a logic circuit included in a recording-head substrate is divided into substantially equal portions, the line having an unignorable parasitic component due to its increased length... | 03/23/2010 |
