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| Number | Title | Issue Date |
| 8186784 | Continuous inkjet printing A continuous inkjet method in which liquid passes through a nozzle, the liquid being jetted comprising one or more dispersed or particulate components and where the particle Peclet number, Pe, defined by Pe = | 05/29/2012 |
| 8172348 | Print head cap vent A print head cap includes a vent which is opened during storage of the print head against the cap, is closed during priming of fluid through nozzles of the print head and is opened to stop the priming. Pumping of fluid from the cap is started substantially immediate... | 05/08/2012 |
| 8162424 | Ink-jet recording method and ink-jet recording apparatus An ink-jet recording method includes: determining an aggregation degree G (AB) brought about when the ink A and the ink B are brought in contact with each other, at least one of the ink A and the ink B containing a pigment; judging, based on the aggregation degree G... | 04/24/2012 |
| 8162423 | Inkjet recording method and apparatus The inkjet recording method includes: a treatment liquid deposition step of depositing a treatment liquid containing an aggregating agent onto a surface of a coating layer of a coated paper having a base paper layer and the coating layer coating the base paper layer... | 04/24/2012 |
| 8123316 | Inkjet image-forming apparatus and method for printing An image forming apparatus including: a print-job controller configured to receive a print job and control a printing operation based on the received print job; an ink-ejection driver configured to output a driving signal on the basis of the print job; an ink ejecto... | 02/28/2012 |
| 8118381 | Image forming apparatus An image forming apparatus includes a recording head configured to jet a liquid; a liquid tank configured to store the liquid; and a supply tube having flexibility, the supply tube being provided between the liquid tank and the recording head, wherein the supply tub... | 02/21/2012 |
| 8113612 | Ink delivery system An ink delivery system includes a plurality of ink supplies, an air pressure source to generate ink pressure for each ink supply, an ink valve associated with each ink supply, where each ink valve is configured to prevent a reverse flow of ink from a pen to the asso... | 02/14/2012 |
| 8042894 | Apparatus that uses consumable items and a method of managing such apparatus An apparatus is provided that uses a consumable item, of given type, requiring occasional renewal. The apparatus has a first operating mode in which it only works with a subset of consumable items of the given type; the apparatus also has a second operating mode in ... | 10/25/2011 |
| 8042896 | Ink jet printer having ink maintenance system An ink jet printer performs a print process by ejecting ink for each of a plurality of ink colors. When a predetermined first circulation time elapses after starting the ink circulation, an ink agitating operation drive signal generation unit applies an ink agitatin... | 10/25/2011 |
| 8042895 | Ink conductivity recovery method for an imaging device A method for restoring ink conductivity of ink in an ink reservoir comprises detecting an ink conductivity of an ink volume in an ink reservoir, and comparing the detected ink conductivity to a predetermined ink conductivity operational range. A flush routine is per... | 10/25/2011 |
| 8029082 | Liquid discharging apparatus, liquid discharging method, and program A liquid discharging apparatus includes a head that is driven in response to a driving signal to discharge liquid, a controller that drives the head by generating the driving signal, an adjustment unit that adjusts the temperature of the liquid, and a supply path th... | 10/04/2011 |
| 8016375 | Image forming apparatus An image forming apparatus includes a recording head configured to jet a liquid; a liquid tank configured to store the liquid; and a supply tube having flexibility, the supply tube being provided between the liquid tank and the recording head, wherein the supply tub... | 09/13/2011 |
| 8002371 | Filling, identifying, validating, and servicing tip for fluid-ejection device A tip to be placed on a fluid-ejection device is filled with fluid. The fluid may be introduced into a substantially hollow body of the tip at a first end of the body. The body of the tip has a second end at which a fluid-ejection mechanism is disposed to eject the ... | 08/23/2011 |
| 7997669 | Inkjet recording apparatus An inkjet recording apparatus including: (a) a recording head; (b) an ink supply source; (c) an ink supply conduit interconnecting the recording head and the ink supply source, such that the ink is supplied from the ink supply source to the recording head in an ink ... | 08/16/2011 |
| 7997670 | Liquid-ejection apparatus A liquid-ejection apparatus, including: a head configured to eject a liquid from a plurality of liquid-ejection openings; a main tank configured to accommodate the liquid supplied to the head; a liquid-supply pump configured to supply the liquid in the main tank to ... | 08/16/2011 |
| 7938497 | Ink jet printer An ink jet printer is provided with an ink jet head, an elastically deformable sub-ink tank, an actuator, an ink quantity detection device, controller, and a main ink tank which communicates with the sub-ink tank. The actuator performs a predetermined action, such t... | 05/10/2011 |
| 7887148 | Method of depriming a printhead with concomitant isolation of ink supply chamber A method of depriming a printhead. The method comprises the steps of: (i) providing a printhead having a plurality of nozzles for ejection of ink, an ink inlet and an ink outlet; (ii) providing an ink chamber having an outlet port connected to the ink inlet via an u... | 02/15/2011 |
| 7837285 | Inkjet printing using protective ink A method for modifying an input digital image having one or more color channels corresponding to one or more color inks and a protective ink channel corresponding to a substantially clear protective ink, each channel having an (x,y) array of pixel values, to form a ... | 11/23/2010 |
| 7810893 | Apparatus for regulating viscosity of ink Disclosed is an apparatus for regulating viscosity of ink, which is installed on a flow path of ink in a printing device for regulation of ink viscosity. The apparatus includes a housing installed on the flow path and having an introduction hole and a discharge hole... | 10/12/2010 |
| 7758136 | Ink supply device for inkjet printer The ink supply device for an inkjet printer which supplies ink to an inkjet head via an ink supply channel from an ink tank storing ink, the ink supply device comprises: a printing duty pre-reading device which previously reads a printing duty from print data; and a... | 07/20/2010 |
| 7758137 | Nozzle distribution A fluid ejection device includes a die having a plurality of nozzles variously configured according to a predetermined intended distribution. The fluid ejection device also includes a controller configured to set a mean drop volume of the die by selectively firing s... | 07/20/2010 |
| 7735945 | Microbubble and microdroplet switching, manipulation and modulation of acoustic, electromagnetic and electrical waves, energies and potentials The formation and manipulation of microbubbles, microdroplets and films of (preferably) flowable materials, such as liquids and gases, are used to beneficially control or modulate acoustic-energy propagation, electromagnetic-energy propagation or electrical potentia... | 06/15/2010 |
| 7681966 | Printing process A process including selecting an ink having a viscosity that varies continuously over a range of transfuse process temperatures; forming an image on a preliminary receiving surface or on a final receiving substrate with the selected ink; providing a final receiving ... | 03/23/2010 |
| 7651184 | Liquid droplet ejecting apparatus A liquid droplet ejecting apparatus comprises an ejecting head including a passage which is connected to a sub-tank and an ejecting pressure applying device which applies a feed pressure to the liquid inside the passage, a main tank detector which detects that a mai... | 01/26/2010 |
| 7637579 | Ink-jet printer, and method for attaching ink cartridge An ink-jet printer that includes: a carriage on which a recording head having nozzles for discharging ink and a buffer tank for supplying the ink to the recording head are mounted; an exhaust valve provided on an exhaust path for exhausting air in the buffer tank to... | 12/29/2009 |
| 7625053 | Ink jet recording apparatus An ink jet recording apparatus comprises an ink jet recording head in which a volume of a pressure chamber is caused to vary by deflecting actuators according to drive signals applied between an electrode formed in a pressure chamber (9c) from which in... | 12/01/2009 |
| 7559615 | Inkjet device and method In an inkjet device for containing, degassing and supplying ink, gas is supplied to a container for the ink so that the gas bubbles through the ink in the container. A controller controls a gas supplying means to operate in at least two modes including a degassing m... | 07/14/2009 |
| 7543899 | Inkjet recording apparatus and liquid application method An inkjet recording apparatus which forms images on a recording medium by combining at least two types of liquid comprising: a first application device which applies a first liquid to the recording medium; a second application device which applies a second liquid to... | 06/09/2009 |
| 7517033 | Ink supply control apparatus, ink jet printer and method of controlling ink supply An ink supply control apparatus includes: a driver, operable to drive a selector provided between a recording head and an ink tank to control an ink supply from the ink tank to the recording head; a detector, operable to detect that the selector is disposed in a pre... | 04/14/2009 |
| 7490917 | Dot apportionment table switching printer The table 200 represents that only small dots should be formed in the range Cd1 of relatively small tone values. In the range Cd2, the production rate of small dots gradually decreases, while the production rate of medium dots increases. In the ... | 02/17/2009 |
| 7440099 | Droplets detecting system A droplets detecting system (100) includes a laser diode assembly (20), a photo diode (30), a light source (40), a charge coupled device camera (50), a signal processing and displaying device (32), and an image processing an... | 10/21/2008 |
| 7440135 | Determining method for lattice point for correspondence definition data creation and image processor It used to be difficult to determine representative colors which allow color conversion with accuracy throughout color spaces without occurrences of local tone jump. An ink quantity lattice point smoothness evaluation function for evaluating the smoothness of... | 10/21/2008 |
| 7434899 | Inkjet recording method and inkjet recording ink for that method An inkjet recording method including the steps of: ejecting an ink having viscosity from 5 to 20 mPa·s from a nozzle of an inkjet head toward a recording medium; forming a main droplet and at least one satellite out of the ink; controlling a drive voltage of the in... | 10/14/2008 |
| 7431416 | Apparatus for jetting an alignment agent An apparatus for jetting an alignment agent includes a jetting head having a jetting hole, an alignment agent externally provided onto a substrate and a viscosity controlling part controlling a viscosity of the alignment agent stored in the jetting head to facilitat... | 10/07/2008 |
| 7431439 | Liquid supply device and recording apparatus incorporating the same In a device for supplying liquid from a liquid cartridge to a liquid ejection head via a liquid supply channel, a cartridge chamber accommodates the liquid cartridge. A valve is disposed between the liquid cartridge and the liquid supply channel. A control lever is ... | 10/07/2008 |
| 7419235 | Liquid ejecting method and apparatus therefor A liquid ejecting method can eject liquid from a liquid ejecting head, the liquid ejecting head including a liquid chamber for storing liquid to be ejected, an ejection outlet in fluid communication with the liquid chamber, a liquid chamber volume controller for cha... | 09/02/2008 |
| 7410240 | Inkjet recording head and inkjet recording apparatus An inkjet recording head including first and second supply paths. The first supply path supplies ink to the pressure chamber. The second supply path supplies ink to the porous member. Also included is an orifice plate having the ink discharge port, where at least an... | 08/12/2008 |
| 7408676 | Ink jet printing with switched use of particular color ink depending on number of print head passes corresponding to print quality and speed When three primary color inks and a particular color ink having a hue different from those of the three colors are used, the number of passes with regard to the same printing area is changeable, thereby speeding up a printing operation and improving color developmen... | 08/05/2008 |
| 7394564 | Printing machine with a control unit that displays a plurality of key operation switches to control ink keys In an initial state, a key control switch for adjusting opening degrees of ink keys and a display changeover switch are displayed on a display screen of a touch sensitive control panel. The key control switch is a collection of key control switches individually arra... | 07/01/2008 |
| 7384205 | Print control apparatus and print control method The present invention operates in a printing apparatus capable of carrying out printing by switching between a mode using a set of toners for four colors Y, M, C, and K and a mode using a set of toners for six colors including the four primary colors, light cyan, an... | 06/10/2008 |
