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| Number | Title | Issue Date |
| 8172360 | Printhead servicing system and method A system for servicing a printhead having a plurality of orifices formed in a face thereof includes a cap configured to mate with the face of the printhead; a porous material provided in the cap, wherein the porous material has a first side arranged to face the face... | 05/08/2012 |
| 8167401 | Liquid ejection apparatus and image forming apparatus The liquid ejection apparatus includes: a liquid ejection head which has a nozzle surface including a plurality of nozzles; a cap device which comes in contact with the nozzle surface of the liquid ejection head and enables liquid inside the nozzles to be suctioned ... | 05/01/2012 |
| 8162435 | Liquid droplet jetting apparatus A printer comprises a first head which has first nozzles, a second head which has second nozzles each having a nozzle diameter larger than that of the first nozzle, and an ink cartridge which stores an ink to be supplied to the first and second heads. The first head... | 04/24/2012 |
| 8152266 | Inkjet recording apparatus To provide a method of effectively reducing the amount of ink droplets remaining on a nozzle surface after a cleaning operation, and an inkjet recording apparatus capable of shortening an entire processing time of an initial filling operation and a cleaning operatio... | 04/10/2012 |
| 8152267 | Ink jet recording apparatus An ink jet recording apparatus configured to perform recording by discharging ink from a plurality of discharge ports disposed on a recording head. The apparatus includes a cap adapted to cover the plurality of discharge ports disposed on the recording head, a reces... | 04/10/2012 |
| 8152268 | Tube pump, liquid ejecting apparatus, and method of driving tube pump A tube pump comprising a flexible tube, a pressing member capable of generating a negative pressure in the tube by sequentially pressing the tube from as the pressing member moves from an upstream portion of the tube to a downstream portion of the tube during a pump... | 04/10/2012 |
| 8104866 | Inkjet recording apparatus and head maintenance method An inkjet recording apparatus has: an inkjet head which has an ink ejection surface and ejects droplets of an ink from the ink ejection surface onto a recording medium; a pressure drum which is disposed in a position opposing the ink ejection surface of the inkjet h... | 01/31/2012 |
| 8104867 | Liquid droplet jetting apparatus A liquid droplet jetting apparatus includes a jetting head unit which has a nozzle which jets droplets of a liquid, and a heat generating section, a suction port which is formed in the jetting head unit, and which opens near the nozzle, and a suction device which su... | 01/31/2012 |
| 8087745 | Image forming apparatus and method of discharging ink from recording head An image forming apparatus includes a recording head in which a plurality of nozzle groups is formed; a waste-liquid discharging mechanism which includes a plurality of suction caps covering the nozzle groups respectively, a suction mechanism the ink through the suc... | 01/03/2012 |
| 8061802 | Maintenance device for liquid ejection head and liquid ejection apparatus A maintenance device for doing maintenance of an inkjet type recording apparatus having a recording head is provided. The maintenance device includes a selecting portion. The selecting portion has a plurality of movable bodies each corresponding to one of nozzle gro... | 11/22/2011 |
| 8047628 | Printing apparatus A printing apparatus to form an image on a recording medium is provided. The printing apparatus includes a recording head, an ink cartridge, which contains the ink therein, an ink cartridge storage to store the ink cartridge, an ink conveyer tube, which connects the... | 11/01/2011 |
| 8033637 | Image forming apparatus with maintenance-and-recovery mechanism An image forming apparatus has a liquid discharge head to discharge droplets of a recording liquid to form an image on a recording medium and a maintenance-and-recovery mechanism to perform a maintenance and recovery operation on the liquid discharge head. The maint... | 10/11/2011 |
| 7997681 | Ink jet printing apparatus A plurality of ejection portions are divided into groups, each containing at least one ejection portion, so that the suction-based recovery operation can be performed for each group independently. Since the number of ejection portions contained in each group differs... | 08/16/2011 |
| 7959255 | Liquid droplet jetting apparatus A liquid droplet jetting apparatus includes a jetting head unit which has a nozzle which jets droplets of a liquid, and a heat generating section, a suction port which is formed in the jetting head unit, and which opens near the nozzle, and a suction device which su... | 06/14/2011 |
| 7891759 | System for cleaning inkjet cartridges Embodiments provide a system and method for cleaning inkjet cartridges. The system includes a fixture configured to mount an inkjet cartridge where a printhead of the inkjet cartridge is mounted to a cleaning plate. The cleaning plate includes one or more orifices c... | 02/22/2011 |
| 7887158 | Droplet ejecting device A droplet ejecting device has a droplet ejecting head, a rotating member, a recovery unit, and a negative pressure generating unit. The rotating member is disposed so as to oppose a nozzle surface of the droplet ejecting head, and is a conveying body that conveys a ... | 02/15/2011 |
| 7878622 | Ink jet recording apparatus An ink jet recording apparatus incorporating a plurality of ink tanks that is independently exchangeable. An amount of ink suction for a suction recovery operation is changed and controlled based on the ink tank being exchanged. In this way, a small-sized apparatus ... | 02/01/2011 |
| 7878621 | Ink-jet printer and method of sucking ink from air-discharge cap of ink-jet printer An ink-jet printer including a carriage carrying recording heads, air collecting chambers, and discharging passages communicating with the respective air collecting chambers; opening and closing valves provided in the respective discharging passages; opening and clo... | 02/01/2011 |
| 7866789 | Inkjet printing apparatus and method of controlling an ink suction pump motor In order to stabilize a performance of a pump employed for processing in an inkjet printing apparatus such as sucking ink from a printing head with a low cost configuration and without the need of using any specific detecting unit, the following configuration is emp... | 01/11/2011 |
| 7845759 | Droplet ejecting device having flow adjusting member A droplet ejecting device includes a droplet ejecting head, a channel member, a suction section, and a flow adjusting member. The droplet ejecting head has nozzles that eject droplets. The channel member is formed with a liquid supplying channel that supplies the dr... | 12/07/2010 |
| 7841692 | Head maintenance method, head maintenance device, and printer A head maintenance method for a printing head having ink nozzles capable of ejecting an ink liquid, the method includes: performing a cleaning operation by sucking the ink liquid from the ink nozzles; measuring an elapsed time from when the last cleaning operation i... | 11/30/2010 |
| 7841693 | Tube pump, liquid ejecting apparatus, and method of driving tube pump A tube pump comprising a flexible tube, a pressing member capable of generating a negative pressure in the tube by sequentially pressing the tube from as the pressing member moves from an upstream portion of the tube to a downstream portion of the tube during a pump... | 11/30/2010 |
| 7837294 | Fluid ejection apparatus A fluid ejection apparatus includes a fluid ejection head comprising a nozzle through which fluid is ejected, a fluid supply passage through which fluid is supplied to the fluid ejection head, a suction device configured to draw fluid from the nozzle, and a movable ... | 11/23/2010 |
| 7837293 | Suction device and liquid droplet ejection apparatus having the same, as well as electro-optical apparatus and manufacturing method thereof Provided herein is a suction device that is provided in an inkjet liquid droplet ejection apparatus and sucks functional liquid while contacting with nozzle surfaces of the functional liquid droplet ejection heads. The suction device has a plurality of head caps, a ... | 11/23/2010 |
| 7832831 | Method for controlling liquid ejection apparatus and liquid ejection apparatus A printer includes a recording head having a nozzle that ejects ink and a suction pump that draws the ink through the nozzle. A valve unit and a filter are arranged in a passage that supplies the ink to the recording head. A controller of the printer operates the su... | 11/16/2010 |
| 7775626 | Cleaning device, inkjet printer, and an inkjet printer cleaning method A cleaning mechanism for cleaning a print head in an inkjet printer with the print head having ink nozzles for discharging ink including a drive control unit which operates the cleaning mechanism at a first process level or a second process level that consumes less ... | 08/17/2010 |
| 7753476 | Image recording apparatus An image recording apparatus includes: an ink jet head having a plurality of nozzles for discharging inks; a cap body having an inner space and adapted to cover open surfaces of the nozzles such that the inner space forms a sealed space; a sucking device which is co... | 07/13/2010 |
| 7735957 | Suction recovery method of ink jet printing apparatus and ink jet printing apparatus To provide a suction recovery method of an ink jet printing apparatus by which ink can be securely filled to an ink flow path and a nozzle while minimizing an amount of ink discharge during a suction recovery to prevent an adverse effect such as invited bubbles. The... | 06/15/2010 |
| 7578573 | Drop ejection assemby A fluid drop delivery device is disclosed. The device includes a plurality of nozzle openings from which fluid is ejected and a waste control aperture. ... | 08/25/2009 |
| 7571980 | Cleaning method and apparatus for a printhead assembly A method and apparatus are provided for cleaning a first set and a second set of a staggered full-width array printhead assembly (SFWA) in an inkjet printer. The apparatus for the method includes (a) a wiper blade carriage assembly (WBCA) having a wiper blade unit a... | 08/11/2009 |
| 7547089 | Ink jet recording apparatus An ink jet recording apparatus incorporating a plurality of ink tanks that is independently exchangeable. An amount of ink suction for a suction recovery operation is changed and controlled based on the ink tank being exchanged. In this way, a small-sized apparatus ... | 06/16/2009 |
| 7467845 | Image forming apparatus The image forming apparatus comprises: a discharging head which has a nozzle surface on which nozzles for discharging liquid droplets are formed; a medium supporting device which supports a recording medium, the medium supporting device being disposed in a position ... | 12/23/2008 |
| 7440124 | Ink-jet printer purging device shared by multiple host machines An ink-jet printer system includes an ink-jet printer and a multiple number of host machines. The ink-jet printer has a storage portion for holding the completion time of the last printing operation while each host machine has a controller having an inactive time co... | 10/21/2008 |
| 7431420 | Printing system, controller, print job creation apparatus, method of executing printing process, and program During the creation of print job data on a job creation terminal, a flushing pattern placement reservation region is previously arbitrary specified and described in placement condition data. Flushing pattern data is previously stored in a storage part. A flushing ju... | 10/07/2008 |
| 7431419 | Method for free spraying of the nozzles of an inkjet print head In a method for free spraying of the nozzles of an inkjet print head, in particular in a franking and/or addressing machine, in which the print media are directed past a stationary inkjet, at least the nozzles that are not participating in the generation of the curr... | 10/07/2008 |
| 7422308 | Liquid ejection apparatus For cleaning a recording head, a printer seals nozzles by means of a cap member and thus forms a closed circulatory system. In this state, a gear pump is activated and draws waste ink and the air from the cap member. The waste ink and the air then flow in the cap me... | 09/09/2008 |
| 7419240 | Print head cap A print head cap includes a bottom surface; and a ring-like lip. The ring-like lip surrounds the bottom surface, protrudes toward a nozzle surface of a print head of an ink jet printer and is elastically deformable. The ring-like lip is pressed onto the nozzle surfa... | 09/02/2008 |
| 7413281 | Capper for a printhead maintenance station A capper for a printhead maintenance station is provided. The capper comprises a capping chamber sealingly engageable around a printhead; a constriction member positioned in the capper chamber; an air inlet defined in a wall of the capping chamber; and a vacuum aper... | 08/19/2008 |
| 7410237 | Image recording apparatus with maintenance unit An image recording apparatus of the present invention comprises an inkjet head which includes a nozzle plate where a plurality of nozzles that shoot ink are arranged in a column and an ink chamber which retains ink and is connected to the plurality of nozzles, at le... | 08/12/2008 |
| 7410249 | Image forming apparatus The image forming apparatus comprises: an ejection head which includes a plurality of nozzles to eject a liquid to deposit the liquid on a recording medium being conveyed relatively to the ejection head to form an image on the recording medium; a tank which stores t... | 08/12/2008 |
