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| Number | Title | Issue Date |
| 8157349 | Method of cleaning head and inkjet recording apparatus A method of a cleaning of an ejection face by supplying a head liquid on the face of an inkjet head provided with ink ejection openings and then by performing a wiping operation. Sufficient cleaning is achieved by appropriately specifying relative relationships amon... | 04/17/2012 |
| 8070254 | Printing head cleaning apparatus, image forming apparatus having the same and method to clean printing head A printing head cleaning apparatus usable with an image forming apparatus includes a spraying unit to spray a quantity of cleaning solution using a sprayer and a cleaning shuttle to carry the spraying unit. The spraying unit includes a cleaning solution tank to stor... | 12/06/2011 |
| 8038254 | Ink set and image forming method The invention provides an ink set having at least an ink composition and a maintenance liquid. The ink composition comprises a pigment (i). The maintenance liquid comprises one or more solvents (ii) having a solubility parameter value of 27.5 or less. The content of... | 10/18/2011 |
| 7976120 | Image forming apparatus An image forming apparatus including a printing ink tank to contain a printing ink, a nozzle unit having a nozzle part to eject the printing ink and to move between a printing section and a cleaning section, a cleaning ink tank to contain a cleaning ink to clean the... | 07/12/2011 |
| 7874636 | Print head cleaning with vacuum source and solvent To clean a print head of an ink jet printer, an ink gun is connected to an ink chamber, a solvent chamber, a vacuum source, and an ink collection gutter, which is capable of being connected in a controlled manner to a vacuum source. During cleaning, an interruption ... | 01/25/2011 |
| 7837291 | Dissolving complexes of anionic dye/cationic polymeric fixer The invention relates to dissolving an anionic dye/cationic polymer complex including the step of applying to the complex a water-soluble solvent having a dielectric constant from 20 to 43 at standard temperature and pressure. ... | 11/23/2010 |
| 7722153 | Method of cleaning a printhead using cleaning liquid A method of cleaning an ink ejection face of an inkjet printhead is provided. The method comprises the steps of: (i) supplying cleaning liquid to the printhead via an ink conduit in fluid communication with nozzles in the printhead; and (ii) purging the cleaning liq... | 05/25/2010 |
| 7686417 | Maintenance liquid for ink jet recording This invention provides a maintenance liquid for ink jet recording containing water, a resin solvent, and a moisturizing agent. ... | 03/30/2010 |
| 7654633 | Dissolving complexes of anionic dye/cationic polymeric fixer The invention relates to dissolving an anionic dye/cationic polymer complex including the step of applying to the complex a water-soluble solvent having a dielectric constant from 20 to 43 at standard temperature and pressure. ... | 02/02/2010 |
| 7600853 | Liquid applied seal for inkjet orifices A liquid is applied by a bounded-region applicator such as a needle applicator over nozzle holes and over at least a continuous region close to the nozzle holes. The liquid is then cured to a solid before significant flow of the liquid into the nozzle holes. The liq... | 10/13/2009 |
| 7575295 | Ink jet device and method of cleaning it This invention relates to an ink jet device that is adaptive for preventing formation of a bad pattern as well as improving the life span of the ink jet device. An ink jet device according to an embodiment of the present invention includes: a maintaining/repairing s... | 08/18/2009 |
| 7540583 | Wiper A printer includes an arcuate arrangement of printheads and a retractable arcuate arrangement of wipers. ... | 06/02/2009 |
| 7510262 | Liquid ejection apparatus and method for flushing of liquid ejection apparatus A liquid ejection apparatus includes a liquid ejection head and a controller (CPU, ASIC). The liquid ejection head is mounted on a carriage that reciprocates and ejects liquid toward a target. The controller controls a flushing mode of an in-range flushing and a flu... | 03/31/2009 |
| 7438384 | Device for washing an inkjet head and an inkjet printing system with the same A device for washing an inkjet head and an inkjet printing system having the same is provided. The device includes a bath which holds a washing solution and a wiping device disposed above the bath. The wiping device has a holding portion and an elastic wiper coupled... | 10/21/2008 |
| 7425525 | Washing solution for inkjet printer head and washing method using the solution There is proposed a washing solution for washing an inkjet printer head which performs printing by feeding an ink comprising at least two kinds of polymerizable compounds each differing in viscosity, a photopolymerization initiator, and pigment. This washing solutio... | 09/16/2008 |
| 7401886 | Method of removing ink from a printhead using film transfer A method of removing ink from an ink ejection face of a printhead is provided. The method comprises transferring the ink onto a film moving past the face. Damage to the face is avoided, since the film does not contact the face. ... | 07/22/2008 |
| 7372593 | Inkjet printhead capping mechanism An inkjet printhead capping mechanism includes an arm arranged to rotate about a pivot point. A capping assembly is located on one end of the arm whereas a slip wheel is located at the other with the pivot point being located between the two. The slip wheel is perio... | 05/13/2008 |
| 7367648 | Printhead maintenance assembly with film transport of ink A printhead maintenance assembly for maintaining a printhead in an operable condition is provided. The maintenance assembly comprises (i) a printhead assembly comprising a printhead having an ink ejection face and a film guide sealingly bonded to the face, the film ... | 05/06/2008 |
| 7360862 | Inkjet apparatus and a method of controlling an inkjet mechanism A method of controlling an inkjet mechanism having an inkjet head movable between a capped position and a print position comprises the steps of receiving a first switch signal indicative of the inkjet head moving into the vicinity of one of the positions of the inkj... | 04/22/2008 |
| 7357493 | Ink refill unit with sequential valve actuators A refill unit for refilling an ink storage compartment is provided. The ink storage compartment has an interface for releasably engaging with the refill unit. The interface has valves for controlling ink flows into, and out of, the storage compartment. The refill un... | 04/15/2008 |
| 7357498 | Method of filling liquid into liquid containing member, liquid filling apparatus and method of inspecting liquid containing member When ink is filled into an ink pack 13 including a bag part 20 and an outlet part 21, firstly, air in the bag 20 and outlet part 21 is sucked by a suction pump P2 provided for an ink pouring apparatus 30. Further, by ... | 04/15/2008 |
| 7350897 | Flushing system and process for flushing the same The present invention relates to various embodiments for a flushing system for an ink jet printer, wherein a flushing fluid source provides a flushing fluid to a manifold wherein the flushing fluid is introduced into the printer's lines, and capping device as well a... | 04/01/2008 |
| 7350913 | Inkjet printer with cradle for unobstructed access to cartridge An inkjet printer comprising an outer casing with a hingedly mounted panel for access its interior; a cradle housed within the outer casing for supporting an ink cartridge, the cradle having a hingedly mounted lid that opens to allow the ink cartridge to be inserted... | 04/01/2008 |
| 7349122 | Printer and method for controlling same A printer having storing means storing time information indicating the time at which cleaning operations were last performed, with the initial value of time information stored in the storing means being set to a time later than the shipment of the printer. Elapsed t... | 03/25/2008 |
| 7344220 | Ink jet printing apparatus having non-contact print head maintenance station An ink jet printing system comprises an ink jet print head including one or more nozzles for ejecting ink drops. A substrate is adjacent to the nozzles. The substrate is adapted to be wetted by a solvent and to produce a solvent vapor in the vicinity of the nozzles.... | 03/18/2008 |
| 7334885 | Distribution container and distribution method for liquid-discharging head A distribution container containing storage liquid is mounted in a cartridge holding section of a line head to substitute for an ink cartridge during transportation and storage of the line head. The storage liquid prevents air from flowing into the line head through... | 02/26/2008 |
| 7331664 | Ink delivery system and a method for replacing ink An ink delivery system having a fluid supply and a printhead assembly, separate from and in fluid communication with the fluid supply. A primary flow path is configured to facilitate the delivery of fluid from the fluid supply to the printhead assembly, and a return... | 02/19/2008 |
| 7322668 | Inkjet head and methods of fabricating and exchanging the same Inkjet heads and methods of fabricating and exchanging the same. The inkjet head includes a substrate having a liquid supply hole; a nozzle plate disposed on an upper surface and provided with a nozzle hole to eject the liquid; a fluid channel forming layer disposed... | 01/29/2008 |
| 7322671 | Inkjet printer with replaceable printhead requiring zero-insertion-force An inkjet printer comprising a replaceable pagewidth printhead with an array of nozzles and printhead contacts for transmitting power and print data to the nozzles; and corresponding contacts for supplying the power and print data to the printhead contacts; and a se... | 01/29/2008 |
| 7314267 | Ink jet printing apparatus An ink jet printing apparatus can prevent or suppress the generation, by a reaction liquid and ink, of a reaction product on the face surface of a discharge head, and can remove the ink, the reaction liquid or the reaction product adhering to the face surface so as ... | 01/01/2008 |
| 7311378 | Wiping apparatus and imaging apparatus provided therewith, method of manufacturing electro-optical device, electro-optical device, and electronic apparatus A wiping apparatus has a cover box which covers at least a feeding reel, a take-up reel, a wiping member and a spray head, as well as a sheet-feeding passage for the wiping sheet. The passage extends from the feeding reel to the take-up reel. The cover box has forme... | 12/25/2007 |
| 7300129 | Inkjet printer An inkjet printer includes: a recording head for jetting ink cured with irradiation of light, onto a recording medium; a light source for irradiating the light toward the ink jetted on the recording medium, the light source being provided so as to face the recording... | 11/27/2007 |
| 7300131 | Droplet ejection apparatus with ejection failure detection means A droplet ejection apparatus includes ejection failure detecting means for detecting an ejection failure, counting means for counting the number of ejection failures, and droplet receptor transporting means which carry out discharge and feed of the droplet receptor.... | 11/27/2007 |
| 7300134 | Image forming apparatus and method for humidifying in head cap An image forming apparatus, for ejecting liquid from openings to form an image on a printing medium, includes a head cap for covering the opening surface through which the openings open when a liquid ejection head in which the opening are formed is not in use and fo... | 11/27/2007 |
| 7290863 | Ink jet printhead chip with misdirected drop collection An ink jet printhead chip includes a substrate that defines a plurality of ink inlet channels. Drive circuitry is positioned on the substrate. A plurality of nozzle arrangements is positioned on the substrate. Each nozzle arrangement defines a nozzle chamber in flui... | 11/06/2007 |
| 7287846 | Inkjet printer cartridge with combined blotter A printer cartridge for an inkjet printer including a body containing at least one printing fluid reservoir, a printhead attached to the body and in fluid communication with the at least one printing fluid reservoir, a printing fluid blotter rotatably coupled to the... | 10/30/2007 |
| 7278724 | Method for treating inkjet liquid, recording apparatus using the same, liquid storage tank, liquid absorber for liquid storage and liquid treatment apparatus The present invention relates to a method for treating liquids used in inkjet recording including, providing a first printing liquid and a second printing liquid that is capable of reacting with the first printing liquid to cause coagulation and thickening if mixed ... | 10/09/2007 |
| 7246873 | Recording head and recording apparatus A recording head has a channel forming member and an element substrate. A discharge port through which liquid is discharged is formed in the channel forming member. An energy generating element for discharging the liquid is formed in the substrate. A gap forming mem... | 07/24/2007 |
| 7244012 | Head cleaning device for ink jet printer, and printer provided with the same A Cleaning fluid discharge openings capable of supplying a cleaning fluid is provided around a suction port mounted in opposition to a nozzle hole. A negative pressure generating source performs suction from the suction port to take out the cleaning fluid from the c... | 07/17/2007 |
| 7237874 | Inkjet printhead with grouped nozzles and a nozzle guard A printhead for inkjet printing includes a substrate. A plurality of nozzles is arranged on the substrate in groups. The substrate defines groups of ink supply passages to supply an ink of a particular color to respective nozzles of each group. A nozzle guard is arr... | 07/03/2007 |
