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| Number | Title | Issue Date |
| 6935715 | Method of ink jet printing with improved end of page printing A print medium is printed on with a printhead of an ink jet printer. The print medium is advanced in an advance direction a predetermined amount. The print medium is printed on with the printhead in an area corresponding to the predetermined amount. A determination ... | 08/30/2005 |
| 6932454 | Image recording apparatus and method for recording an image on a recording medium An image recording apparatus records an image on a recording medium by causing a recording head having an arrangement of a plurality of recording elements to conduct its main scanning for the recording medium interrelatedly in the direction opposite to the arrangeme... | 08/23/2005 |
| 6932453 | Inkjet printhead assembly having very high drop rate generation An inkjet printhead assembly includes at least one inkjet printhead including N primitives and an address having M possible address values. Each primitive includes a group of at most M drop generators. The address is cycled through all M address values to control a ... | 08/23/2005 |
| 6932460 | Fluid ejection device A dynamic memory based integrated circuit ink jet firing cell that includes a heater resistor, a drive transistor, and a dynamic memory circuit for storing firing data only for such heater resistor. Also disclosed is an integrated circuit firing array that includes ... | 08/23/2005 |
| 6926455 | Continuous media printer including memory for buffering pages A printer is provided with a buffer to receive print data. Print data is read from the buffer by a control system and information is printed by one or more printhead assemblies in accordance with print data read by the control system from the buffer. ... | 08/09/2005 |
| 6922892 | Method of manufacturing head of inkjet printer A method of manufacturing a head of an inkjet printer includes forming a heater on a substrate and also forming an ink feeding passage through the substrate in a vertical relation to a surface where the heater is formed, forming an ink chamber communicating with the... | 08/02/2005 |
| 6923529 | Ink-jet printing with reduced cross-talk An ink jet printer having an array of nozzles from which ink droplets of adjustable volume are emitted further includes a mechanism adapted to individually adjust the volume of the emitted ink droplets. The mechanism has a first state wherein the emitted droplets of... | 08/02/2005 |
| 6923522 | Recording apparatus and recording method Each of pixels of recorded image is formed by a plurality of dots composed with ink droplets ejected from a plurality of different orifices at individual different main-scannings. With this recording process, the variation of ink ejection characteristics between a p... | 08/02/2005 |
| 6923520 | Head driving unit and an image forming apparatus using the same A head driving unit the generates a driving waveform, each driving waveform including a plurality of driving pulses, and selects one or more driving pulses to be applied to a liquid drop discharging head in response to data corresponding to an image. By selecting a ... | 08/02/2005 |
| 6916077 | Liquid ejecting device and liquid ejecting method A liquid ejecting device can print a high quality image having an increased number of gradations without having a complex head structure, and is suitable for use in a line head. The liquid ejecting device includes a head in which liquid ejecting portions including n... | 07/12/2005 |
| 6911132 | Apparatus for manipulating droplets by electrowetting-based techniques An apparatus is provided for manipulating droplets. The apparatus is a single-sided electrode design in which all conductive elements are contained on one surface on which droplets are manipulated. An additional surface can be provided parallel with the first surfac... | 06/28/2005 |
| 6910760 | Liquid discharge head and method for manufacturing recording head A liquid discharge head includes a first bubbling chamber, a second bubbling chamber arranged thereon, and a discharge port portion communicated with the second bubbling chamber with a difference in level. The sidewalls of the second bubbling chamber contract in the... | 06/28/2005 |
| 6910751 | Method of controlling an inkjet printer, and inkjet printhead suitable for the use of this method, and an inkjet printer provided with this printhead A method of controlling an inkjet printer containing at least two substantially closed ducts in which ink is present, which includes actuating an electro-mechanical transducer whereby the pressure in a first duct is increased, and a pressure change in another duct i... | 06/28/2005 |
| 6908169 | Recording apparatus and recording control method, and ink jet recording method and apparatus An ink jet recording apparatus provides a plurality of recording heads arranged in a scanning direction, each having a plurality of nozzles arranged substantially perpendicular to the scanning direction, and records by discharging ink from the nozzles onto a recordi... | 06/21/2005 |
| 6908175 | Printing apparatus and print control method This invention provides a low-cost printing apparatus and print control method capable of high-quality printing even in the use of a data buffer smaller in capacity than print data necessary for printing by one scanning of a printhead. According to this method, in p... | 06/21/2005 |
| 6908168 | Inkjet printing apparatus, inkjet printing method and program An inkjet printing apparatus includes a transportation roller unit and discharging roller units to transport printing media. When printing an image on a front end portion of the printing medium, ink is ejected from a partial number of nozzles of a print head on a si... | 06/21/2005 |
| 6904678 | Method of manufacturing a printhead assembly having printhead modules in a channel A method of manufacturing a printhead assembly for an A4 pagewidth drop on demand printer includes a number of printhead modules situated along a metal channel. The metal channel is typically of a special alloy called “Invar 36”. Preferably the channel is nickel... | 06/14/2005 |
| 6905185 | Inkjet printing apparatus, with plural printheads and control circuit A shift register stores printing data in synchronism with a transfer clock. A latch circuit temporarily latches data having a predetermined number of bits to the shift register in response to a data latch signal. A shift register stores block data in synchronism wit... | 06/14/2005 |
| 6902248 | Inkjet recording method An inkjet recording method uses a line-array inkjet head, sets different ink ejection frequencies for respective ink ejection holes desposed in array and ejects ink onto a plate-shaped recording medium at the different ink ejection frequencies from the ink ejection ... | 06/07/2005 |
| 6902254 | Printer system which uses a plurality of print heads and which controls the print heads with a simple configuration to achieve high accuracy image printing A printer system includes a host computer, K, C, M, and Y printer elements for four colors, a paper feeding section, and a head cleaning section. The printer elements each include a head controller and print head groups. The head controllers are connected to the hos... | 06/07/2005 |
| 6902251 | Inkjet printing device A printing device includes a sheet feeding mechanism that feeds the recording sheet by a predetermined amount at a time, a carriage that is movable, substantially at a constant speed, in a direction substantially perpendicular to a sheet feeding direction, and a pri... | 06/07/2005 |
| 6902247 | Multi-resolution printing method and printing device A method and apparatus of printing an image onto a medium uses a system having an elongate printhead with an array of marking elements including at least one distinctive group. The marking elements form at least one row, the direction of which forms a longitudinal a... | 06/07/2005 |
| 6899414 | Printhead and recording device arranged with the printhead A printhead includes plural print elements grouped in blocks. The blocks are selected by a block selection unit to which an initial value is inputted. The initial value is kept in a memory unit, and the blocks are autonomously and periodically selected by the initia... | 05/31/2005 |
| 6893104 | Head driving device of liquid ejecting apparatus and method of discharging charge on charge element thereof A head driving device includes a liquid ejecting head formed with a nozzle orifice from which a liquid droplet is ejected, a driving signal generator generating a driving signal, a pressure generating element applying pressure to liquid based on the driving signal f... | 05/17/2005 |
| 6893106 | Printing apparatus and ink-discharge status detection method A printing apparatus and an ink-discharge status detection method which perform appropriate print control by detecting discharge failure with a simple construction, without reducing the printing speed. The apparatus, to which the method is applied, performs test ink... | 05/17/2005 |
| 6893103 | Ink jet recording apparatus and manufacturing method for functional liquid applied substrate An ink jet printing device and a manufacturing method of a functional liquid applied substrate, which can equalize the discharge amount of the functional liquid with simple operations and structures. An ink jet printing device (100) comprises a plurality of n... | 05/17/2005 |
| 6890047 | Printing apparatus and printing method The present invention is to provide a printing apparatus and printing method capable of stably printing an image with high accuracy by avoiding effects of a dimensional error and printing characteristics specific to a printing head and a mounting error of the printi... | 05/10/2005 |
| 6890760 | Array fabrication Methods, apparatus, and computer program, for use in fabricating a chemical array. The method may use an apparatus which includes a head system, a transport system, and a processor. The head system has multiple groups of drop dispensers which move in unison, each gr... | 05/10/2005 |
| 6890048 | Printhead and image printing apparatus This invention provides a printhead capable of decreasing the ON resistance value without increasing the heater board size in order to downsize the heater board, an image printing apparatus using the printhead, and a control method therefor. In the printhead, heater... | 05/10/2005 |
| 6886910 | Correcting stimulation nonuniformity at the fluid cavity trench end boundary In a drop generator for use in an ink jet printer, stimulation transducers are bonded near the ends of the jet array on the droplet generator body. The transducers are electrically controlled with an oscillating voltage signal which can be modified in amplitude and ... | 05/03/2005 |
| 6883889 | Fluid ejection device In one embodiment, the present invention recites a fluid ejection device comprising a first drop ejector configured to cause fluid having a first drop weight to be ejected from the firing chamber, and includes a first heating element. A first bore, disposed within a... | 04/26/2005 |
| 6877838 | Detection of in-flight positions of ink droplets A printing device, including an ink delivery system configured to selectively fire ink droplets from an array of nozzles onto media, the array being disposed substantially parallel to an axis, and a detection mechanism, the detection mechanism being configured to de... | 04/12/2005 |
| 6866364 | Printhead having drop generators in staggered axis groups A fluid ejection device includes a substrate having fluid feed slots coupled to a fluid supply, and a plurality of drop generators fluidically coupled to the fluid feed slots and formed in the substrate. The plurality of drop generators are arranged in at least thre... | 03/15/2005 |
| 6863372 | Printer device and method A method of printing an image with an inkjet printer system, said system comprising a printhead arranged to print swaths of image content parallel to a first axis on a print medium, said swaths having a width in a second axis substantially perpendicular to said firs... | 03/08/2005 |
| 6860585 | Printhead orientation A printer with a carriage adapted to receive a printhead capable of printing an ink at an effective nozzle density along a medium advance axis. The printhead includes a plurality of substantially parallel columnar arrays of nozzles, each columnar array having an act... | 03/01/2005 |
| 6857716 | Print-controlling method and print-controlling device for printer The invention provides high-speed and high-quality printing when the vertical and horizontal resolutions of print data to be printed differ from the vertical and horizontal resolutions which a printer can process. A table is provided, in which the relationship of po... | 02/22/2005 |
| 6857726 | Printer firing sequence This invention concerns a printhead capping mechanism for preventing evaporation of ink from a printhead when it is not in use. The invention has utility, for instance, in a color printer which uses a drop-on-demand inkjet printhead. The mechanism includes a cap fit... | 02/22/2005 |
| 6854820 | Method for ejecting liquid, liquid ejection head and image-forming apparatus using the same In an liquid ejection head according to the present invention having a plurality of ejection openings arranged in a predetermined direction and a plurality of electro-thermal transducers for ejecting liquid from the ejection openings and being in relative motion wit... | 02/15/2005 |
| 6846054 | Liquid discharging method, image forming method, liquid discharge apparatus, and liquid discharge head A liquid discharging method is disclosed for a liquid discharge head which includes a discharge port constituting the portion for discharging liquid, an energy generating element generating the energy for discharging liquid, and liquid flow paths communicating with ... | 01/25/2005 |
| 6837561 | Current switching architecture for head driver of solid ink jet print heads Circuit architecture for driving piezoelectric transducers with a Head Drive ASIC powered with only regular (constant) power supplies (instead of ramped and shaped power supplies) is disclosed. The circuit architecture consists of current mirroring systems and curre... | 01/04/2005 |
