With Cleaning Or Protector Patents (Class 347/22)
  • Patent number: 8029860
    Abstract: A manufacturing method for a nozzle plate including a plurality of nozzle holes may include the step of forming a plurality of through-holes extending through a plate member in a thickness direction of the plate member. The manufacturing method may also include the step of forming a water repellant film in a region of one surface of the plate member where apertures of the through-holes are not positioned. The manufacturing method may further include the step of pressing individual regions on the one surface of the plate member, the individual regions respectively including the apertures of the through holes, to separate at least portions of the water repellant film formed in the individual regions from the water repellant film formed on the one surface.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: October 4, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yasunori Kobayashi
  • Publication number: 20110234691
    Abstract: A printhead maintenance facility is provided having a storage reservoir for storing fluid ejected by a printhead, and a core movable relative to the printhead. The core has an internal structure defining the storage reservoir and having a port in fluid communication with the storage reservoir, and an external structure movable relative to the internal structure and having a drain movable into registration with the port to establish fluid communication between the drain and storage reservoir. The printhead is pagewidth and the internal and external structures are at least as long as the pagewidth.
    Type: Application
    Filed: June 6, 2011
    Publication date: September 29, 2011
    Inventors: Christopher Hibbard, Geoffrey Philip Dyer, Paul Ian Mackey, Makomo Tsubono, Attila Bertok, Kia Silverbrook, Nicholas Kenneth Abraham, David William Jensen
  • Patent number: 8025359
    Abstract: A protector for an ink cartridge container including a containing case body, an ink inlet for a recording head, a cartridge containing part into which an ink cartridge is removably insertable, and a door body capable of opening and closing an opening opposed to the ink inlet with the cartridge containing part sandwiched therebetween, the protector includes a protective cap unit including: a main body; a supporting rod protruded toward the ink inlet from the main body; a guiding funnel formed at a front edge of the supporting rod; and an elastic cap provided at an inner diametrical portion of the guiding funnel and capable of coming into close contact with the ink inlet, wherein: the protective cap unit is removable from and insertable into a containing case body; and the protective cap unit is formed as a different shape than that of the ink cartridge.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: September 27, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiroyasu Yano
  • Publication number: 20110227997
    Abstract: In a printer, a first section is sized to accommodate a rolled sheet therein. A printing head is horizontally movable along a moving path extending in a first direction and operable to perform printing on a part of the rolled sheet which is drawn out from the first section. A second section is provided on a first side of the first section relative to the first direction. A third section is provided on a second side of the first section relative to the first direction opposite to the first side. A control board on which a circuit operable to control an operation of the printer is mounted is disposed in the first section so as to extend vertically. An ink supplying member is disposed in the third section that supplies ink to the printing head. The moving path is longer than a dimension of the first section in the first direction.
    Type: Application
    Filed: May 26, 2011
    Publication date: September 22, 2011
    Inventor: Toshiyuki Sasaki
  • Publication number: 20110221821
    Abstract: Disclosed is an image forming apparatus that includes plural recording heads that eject liquid droplets and plural maintenance units that correspond to the plural recording heads. The plural maintenance units are capable of separately moving between opposed positions opposed to the plural recording heads and retracted positions not opposed to the plural recording heads, and the plural maintenance units are retracted into the retracted positions in postures different from postures at the opposed positions.
    Type: Application
    Filed: March 4, 2011
    Publication date: September 15, 2011
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yukihiro ASANO, Katsuaki Ono, Yusuke Nemoto, Daisuke Hasebe
  • Patent number: 8007073
    Abstract: A liquid ejecting apparatus includes two liquid discharge heads, a wiper unit, and an actuating mechanism. Each of the two liquid discharge heads has a nozzle face on which at least one nozzle opening for discharging liquid is formed. The two liquid discharge heads are located so that the nozzle faces of the two liquid discharge heads face each other. The wiper unit is pressed against each of the nozzle faces of the two liquid discharge heads at a position at which the wiper unit is placed between the nozzle faces of the two liquid discharge heads. The actuating mechanism reciprocally moves the wiper unit relatively along the nozzle faces of the two liquid discharge heads.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: August 30, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Masato Murayama
  • Patent number: 8007072
    Abstract: A cleaning blade which wipes a liquid discharge area by being moved relatively with respect to the liquid discharge area of a liquid discharge head having the liquid discharge area in which liquid discharge nozzles are arranged to discharge a liquid is disclosed. The cleaning blade includes: a supporting plate which has an adhesive agent layer on its front surface; and a wipe part which is slid and contacted with the liquid discharge area, the wipe part formed in which an elastic part formed of a synthetic resin is formed in one piece on the adhesive agent layer, and a tip end thereof is cut in a predetermined shape.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: August 30, 2011
    Assignee: Sony Corporation
    Inventors: Shota Nishi, Shigeyoshi Fujiki, Manabu Matsuda, Yuji Yakura, Makoto Ando
  • Patent number: 8007071
    Abstract: An image forming apparatus includes: a liquid tank which retains a liquid; a liquid jetting head connected to the liquid tank and having a nozzle for jetting the liquid; a carriage on which the liquid tank and the liquid jetting head are provided; a recovery mechanism which recovers the liquid jetting head; a memory which retains predetermined history information; and a controller which controls the recovery mechanism based on the history information. The recovery mechanism selectively executes a first recovery operation for discharging air from the liquid tank and a second recovery operation for discharging air from the liquid tank and for discharging the liquid from the nozzle, and the controller controls the recovery mechanism to perform the first recovery operation if the history information in the memory includes an abnormality when a power of the image forming apparatus is switched ON.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: August 30, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Kiyoharu Hayakawa
  • Patent number: 8002383
    Abstract: The liquid ejection apparatus comprises: a liquid ejection head having an ejection port surface on which ejection ports for ejecting liquid are formed; a wiping device having a blade member which wipes and cleans the ejection port surface; a sliding device which causes the blade member to slide relatively with respect to the ejection port surface; a state identification device which identifies at least one state, of a state of the ejection ports, a state of the ejection port surface, and an operational state of the blade member when sliding over the ejection port surface; and a cleaning capability modification device which modifies a cleaning capability of the wiping device in accordance with a determination result of the state identification device.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: August 23, 2011
    Assignee: Fujifilm Corporation
    Inventors: Yasuhiko Kachi, Tsutomu Takatsuka
  • Patent number: 8002381
    Abstract: An inkjet printer comprises a stationary pagewidth inkjet printhead and a printhead maintenance station. The maintenance station comprises a chassis having a maintenance roller and a transfer roller mounted thereon. An engagement mechanism reciprocally moves the chassis towards and away from the printhead such that a contact surface of the maintenance roller is sealingly engaged with or disengaged from the face. A rotation mechanism rotates the maintenance roller only when the maintenance roller is disengaged from the face, and the transfer roller receives ink from the maintenance roller during rotation of the maintenance roller.
    Type: Grant
    Filed: April 11, 2010
    Date of Patent: August 23, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventors: John Douglas Peter Morgan, Akira Nakazawa, Patrick John McAuliffe, Kia Silverbrook
  • Publication number: 20110199421
    Abstract: In an ink jet head using a thermal energy for ejecting ink, this invention aims to reliably and uniformly remove kogations deposited on a heat application portion in contact with the ink. To realize this objective, the upper protective layer is arranged in an area including the heat application portion so that it can be electrically connected to serve as an electrode which causes an electrochemical reaction with the ink. The upper protective layer is formed of a material containing a metal which is dissolved by the electrochemical reaction and which does not form, on heating, an oxide film which hinders the dissolution. With this arrangement, a reliable electrochemical reaction can be produced to dissolve a surface layer of the upper protective layer, thereby removing kogations on the heat application portion reliably and uniformly.
    Type: Application
    Filed: April 26, 2011
    Publication date: August 18, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: TOSHIYASU SAKAI, ICHIRO SAITO, TERUO OZAKI, SAKAI YOKOYAMA, TAKAHIRO MATSUI, TAKUYA HATSUI, KAZUAKI SHIBATA
  • Patent number: 7997682
    Abstract: A mobile telecommunications device is provided having a printhead for printing on print media, a capper moveable between a capped position in which the printhead is capped and an uncapped position in which the printhead is uncapped, and a mechanism for maintaining the capper in the uncapped position. The mechanism has actuation arms configured to grip and retain the print media suspended from the device once printing is complete until removal of the print media from the device by a user.
    Type: Grant
    Filed: November 15, 2009
    Date of Patent: August 16, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventor: Kia Silverbrook
  • Patent number: 7997673
    Abstract: A printhead IC is provided having an ejection nozzle, drive circuitry for generating drive signals for driving the ejection nozzle, and a temperature sensor connected to the drive circuitry. The drive circuitry adjusts the drive signals in response to output of the temperature sensor so as to generate the drive signals as print signals and de-clog signals. The de-clog signals have a longer duration than the print signals.
    Type: Grant
    Filed: September 13, 2009
    Date of Patent: August 16, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventors: John Robert Sheahan, Mark Jackson Pulver, Brian Christopher Morahan, Alireza Moini, Timothy Peter Gillespie, Michael John Webb, Kia Silverbrook
  • Web
    Patent number: 7988256
    Abstract: A web has a surface layer integrally extending between opposite transverse edges. The surface layer includes absorbent region separated by at least one nonabsorbent region.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: August 2, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Tanya W. Burmeister, Antonio Gomez, Mark D. Groenenboom
  • Patent number: 7988271
    Abstract: An ink jet printer system includes an ink jet head, a plurality of ink supplying cartridges, an ink flow channel and a control device. The ink flow channel connects the ink jet head and the plurality of ink supplying cartridges to supply ink from the plurality of ink supplying cartridges to the ink jet head. The control device is configured to sequentially supply ink from each of the plurality of ink supplying cartridges to the ink jet head.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: August 2, 2011
    Assignee: Mimaki Engineering Co., Ltd.
    Inventors: Masaru Ohnishi, Hitoshi Sato
  • Patent number: 7984960
    Abstract: A printhead maintenance facility is provided having a storage reservoir for storing fluid ejected by a printhead and a core movable relative to the printhead. The has an internal structure defining the storage reservoir and having a port in fluid communication with the storage reservoir, and an external structure movable relative to the internal structure and having a drain movable into registration with the port to establish fluid communication between the drain and storage reservoir.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: July 26, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Christopher Hibbard, Geoffrey Philip Dyer, Paul Ian Mackey, Makomo Tsubono, Attila Bertok, Kia Silverbrook, Nicholas Kenneth Abraham, David William Jensen
  • Patent number: 7980657
    Abstract: A printhead assembly includes an elongate channel member of a metal alloy; a flexible elongate fluid carrier positioned on a floor of the channel member, the fluid carrier defining a plurality of passages longitudinally extending along a length of the fluid carrier, the fluid carrier further defining a repeated pattern of holes on an external surface thereof, the holes providing fluid communication from outside the fluid carrier to respective passages of the fluid carrier; and a series of printhead modules mounted to the external surface of the fluid carrier, each printhead module including an upper micro-molding and a lower micro-molding, the lower micro-molding having an air inlet slot in fluid communication with one of the plurality of passages via a hole of the repeated pattern of holes at one end and a series of alternating air inlets and outlets on the upper micro-molding at an opposite end.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: July 19, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Kia Silverbrook, Tobin Allen King
  • Patent number: 7980196
    Abstract: An apparatus for coating a polyimide layer includes a printing table in which a substrate is provided, an inkjet head having an injection surface with nozzles for injecting a polyimide liquid onto the substrate, a polyimide liquid supply tank filled with the polyimide liquid, an ultrasonic cleaner in which a cleaning liquid for cleaning the inkjet head is stored for cleaning the inkjet head with vibrations in the cleaning liquid generated by applying an ultrasonic signal, and a wiper for wiping an injection surface of the inkjet head.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: July 19, 2011
    Assignees: LG Display Co., Ltd., ULVAC, Inc.
    Inventors: Bong Chul Kim, Jun Beom Cho, Seung Hyung Lee, Kyo Yong Koo, Hyeon Jin Seo, Dhang Kwon, Robert Taff
  • Patent number: 7980656
    Abstract: On a liquid ejection head substrate, an upper protective layer, as well as coming into contact with a resin layer of a path forming member having an ejection opening, comes into contact with ink in a heat generating portion inside the channel formed. The upper protective layer contains iridium and silicon. The upper protective layer is configured so that, at a surface in contact with the ink and resin layer, Ir100-XSiX attains a 15 at. %?X?30 at. % silicon content rate, and that X approaches zero as a position in the upper protective layer approaches an adhesion layer. As a result, at the interface where the upper protective layer comes into contact with the path forming member, by the silicon attaining the heretofore described content rate, it is possible to improve the adhesion with the path forming member made of resin compared with a case of using iridium alone.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: July 19, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Sakurai, Ichiro Saito
  • Patent number: 7967423
    Abstract: A continuous inkjet printhead includes a jetting module, a fluid system, and a controller. The jetting module includes an array of nozzles. The fluid system includes a liquid source and a pressure control device. The liquid source includes a liquid and is connected in fluid communication with the jetting module. The controller is in electrical communication with the pressure control device of the fluid system and is configured to provide a first signal to the pressure control device to cause the liquid to be ejected as liquid streams through the nozzles of the array at a first pressure sufficient to create a stream of print-selectable drops. The controller is configured to provide a second signal to the pressure control device to cause the liquid to be ejected as liquid streams through the nozzles of the array at a second pressure with the second pressure being less than the first pressure. The controller is configured to provide the first signal to the pressure control device after a period of time.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: June 28, 2011
    Assignee: Eastman Kodak Company
    Inventor: James A. Katerberg
  • Patent number: 7967515
    Abstract: A roll-based printer and method of loading the same. An example method includes sliding a roll of print media onto a print media spindle so that the roll of print media is positioned closer to a first end of the print media spindle than a second end of the print media spindle and loading the spindle onto a supporting assembly so that the spindle is rotatably supported by the supporting assembly and the first end of the print media spindle is at the end of the printer which is opposite to an end of the printer having a media detecting unit for detecting the presence of print media being fed to the printer. The example method includes feeding the print media to the printer from the loaded spindle, detecting the position of an edge of the print media fed to the printer and adjusting a starting position of the print head based on the detected position of an edge of the print media.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: June 28, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sergio Puigardeu, Angel Martinez, M. Isabel Borrell
  • Publication number: 20110148981
    Abstract: In one embodiment, a method to detect and remove fibers comprises identifying blocked nozzles in a grouping of nozzles within a printhead, and triggering a fiber removal event if it is determined that a plurality of adjacent nozzles are blocked.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 23, 2011
    Inventors: Chin Lee Chee, Chiok Liang Tay, William Choo, Yew Khew Lan Chow Wing
  • Patent number: 7963224
    Abstract: Various embodiments and methods relating to a drum having a polymer layer with channels on a metal cylinder are disclosed.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: June 21, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Louis C. Barinaga, Robert M. Yraceburu, Stuart D. Spencer
  • Patent number: 7961207
    Abstract: This image generating apparatus comprises an ink sheet cartridge storing an ink sheet. When sensing arrival of the rear end of the ink sheet, the image generating apparatus cleans the print head by rotating the print head between a printing position and a nonprinting position (separate position) thereby dropping foreign matter adhering to the print head onto the ink sheet.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: June 14, 2011
    Assignee: Funai Electric Co., Ltd.
    Inventor: Yutaka Noda
  • Publication number: 20110134183
    Abstract: The invention describes a gutter for incorporation in the print head of a continuous inkjet printer. The gutter, which is preferably provided with a slot entrance, is configured to reflect ink droplets which pass into the gutter off the gutter walls and towards the exit passage of the gutter. This arrangement allows the gutter to perform extremely well even when there is significant mis-alignment of the drop generator with the gutter.
    Type: Application
    Filed: February 7, 2009
    Publication date: June 9, 2011
    Inventors: Jonathan Morgan, Bruno Sylvain Jamais
  • Patent number: 7954921
    Abstract: A digital printing machine includes a rigid frame, a first linear motion X axis stage mounted on the frame, a printing table assembly movable on each linear X axis stage, a linear motion Y axis stage mounted on the frame perpendicular to the linear X axis stages, above the printing table assemblies, and an array of inkjet nozzles mounted on the linear Y axis stage for linear motion perpendicular to the X axis stage, also a second linear motion X axis stage mounted on the frame parallel to the first axis stage and arranged for operation independently of the first axis stage, and/or a curing unit located above the printing table assembly and/or a pre-printing wetting assembly, for printing over garments, by applying wetting composition on the printed material, prior to printing.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: June 7, 2011
    Assignee: Kornit Digital Technologies Ltd.
    Inventors: Ofer Ben-Zur, Yossi Pearl
  • Publication number: 20110128320
    Abstract: An ink receiving device C for an ink jet printer includes: an ink receptacle which receives ink discharged from nozzles of ink jet heads; and a support member which supports the ink receptacle in a manner to enable the ink receptacle to move horizontally. The ink receptacle is enabled by the support member to move horizontally to three positions including: a standby position at which the ink receptacle does not disturb the ink jet heads from printing on a print medium; an ink receiving position which is below the ink discharging surfaces of the ink jet heads and at which the ink receptacle receives ink discharged for a purpose other than printing; and a maintenance position which is different from the ink receiving position and the standby position and at which a maintenance work of the ink receptacle is performed.
    Type: Application
    Filed: October 28, 2010
    Publication date: June 2, 2011
    Applicant: KABUSHIKI KAISHA TOKYO KIKAI SEISAKUSHO
    Inventor: Hiroki Sezaki
  • Patent number: 7950769
    Abstract: In an ink jet head using a thermal energy for ejecting ink, this invention aims to reliably and uniformly remove kogations deposited on a heat application portion in contact with the ink. To realize this objective, the upper protective layer is arranged in an area including the heat application portion so that it can be electrically connected to serve as an electrode which causes an electrochemical reaction with the ink. The upper protective layer is formed of a material containing a metal which is dissolved by the electrochemical reaction and which does not form, on heating, an oxide film which hinders the dissolution. With this arrangement, a reliable electrochemical reaction can be produced to dissolve a surface layer of the upper protective layer, thereby removing kogations on the heat application portion reliably and uniformly.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: May 31, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiyasu Sakai, Ichiro Saito, Teruo Ozaki, Sakai Yokoyama, Takahiro Matsui, Takuya Hatsui, Kazuaki Shibata
  • Patent number: 7950770
    Abstract: This patent specification describes a droplet-ejecting head including a nozzle substrate having a plurality of nozzles for ejecting droplets, and an actuator configured to be driven to generate energy for ejecting droplets through each nozzle. The nozzle substrate is cleaned by a cleaning liquid containing microbubbles before being bonded to another member.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: May 31, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshiroh Tokuno, Michio Umezawa, Kaichi Ueno, Kouji Ohnishi
  • Patent number: 7942493
    Abstract: A disclosed image forming apparatus for forming an image on a recording medium includes an inkjet head having a nozzle surface and inkjet nozzles on the nozzle surface and configured to jet ink droplets from the inkjet nozzles; a recording medium conveying mechanism including a recording medium conveyor and configured to convey the recording medium by the recording medium conveyor into an image forming area facing the inkjet head; a test pattern forming part provided separately from the recording medium conveyor; a control unit configured to perform an image forming test where a test pattern is formed on the test pattern forming part by jetting ink droplets from the inkjet head; and a test pattern detection unit configured to detect the test pattern formed on the test pattern forming part.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: May 17, 2011
    Assignee: Ricoh Company, Ltd.
    Inventor: Masaru Watanabe
  • Patent number: 7934790
    Abstract: 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 least one maintenance suction section which has a suction area larger than the nozzles, a suction section driving mechanism which causes the suction area to face the nozzles and moves the suction section relatively in the nozzle arrangement direction; and a positive pressure applying section which applies a positive pressure to the ink chamber. The maintenance suction section sucks in ink near the nozzles as moving in the nozzle arrangement direction, while the positive pressure is being applied to the ink chamber.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: May 3, 2011
    Assignee: Olympus Corporation
    Inventors: Takahisa Yamada, Masanobu Shimizu, Takashi Matsuyama, Motoharu Miki
  • Patent number: 7934791
    Abstract: There are provided a printing apparatus and printing method capable of collecting unwanted ink mist and achieving high-quality printing by fine ink droplets. According to the method, the charges of a printing medium are removed prior to printing, and an ink mist collecting unit having an electrode of a positive polarity is employed. Floating ink mist is collected such that ink mist generated from discharged ink droplets and negatively charged is moved toward the ink mist collecting unit by the electrostatic force.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: May 3, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsuhiko Masuyama, Jiro Moriyama
  • Publication number: 20110090280
    Abstract: A printhead maintenance facility is provided having a storage reservoir for storing fluid ejected by a printhead and a core movable relative to the printhead. The has an internal structure defining the storage reservoir and having a port in fluid communication with the storage reservoir, and an external structure movable relative to the internal structure and having a drain movable into registration with the port to establish fluid communication between the drain and storage reservoir.
    Type: Application
    Filed: December 20, 2010
    Publication date: April 21, 2011
    Inventors: Christopher Hibbard, Geoffrey Philip Dyer, Paul Ian Mackey, Makomo Tsubono, Attila Bertok, Kia Silverbrook, Nicholas Kenneth Abraham, David William Jensen
  • Patent number: 7922295
    Abstract: An ink jet apparatus electrifies ink in a nozzle, and ejects the ink from an ink ejecting hole onto a printing medium by a first electric field generated between the nozzle and the printing medium. The apparatus includes an ink catching device including an ink catching portion adjacent to the nozzle that catches an ejected substance. Between the nozzle and the ink catching portion, the apparatus applies a voltage for generating a second electric field which (i) causes an ejected substance, formed from the ink or the ink whose viscosity is changed, to be ejected from the nozzle, and (ii) causes the ink catching portion to attract the ejected substance. The apparatus, utilizes an electrostatic force to eject fluid, removes a clogging of an ejection head at any position, realizes less initial ejection fluctuation and improves the reliability of ejection.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: April 12, 2011
    Assignees: Sharp Kabushiki Kaisha, National Institute of Advanced Industrial Science and Technology
    Inventors: Hidetsugu Kawai, Shigeru Nishio, Haruhiko Deguchi, Shigeaki Kakiwaki, Kazuhiro Murata
  • Patent number: 7922279
    Abstract: A inkjet printhead maintenance facility that has an ink storage reservoir for holding ink ejected from the inkjet printhead during a maintenance operation and, an outlet coupling in fluid communication with the ink storage reservoir and configured for connection to a vacuum source to draw ink out of the ink storage reservoir.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: April 12, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Christopher Hibbard, Geoffrey Philip Dyer, Paul Ian Mackey, Makomo Tsubono, Attila Bertok, Kia Silverbrook, Nicholas Kenneth Abraham, David William Jensen
  • Patent number: 7918518
    Abstract: An inkjet recording apparatus includes: a setting portion on which a recording medium is set; a feeder which feeds the recording medium from the setting portion in a feed direction; a recording head which ejects ink so that an image is recorded on the recording medium fed by the feeder; a gap changing device which changes a gap between the recording head and the recording medium; a judgment portion which judges a setting direction of the recording medium on the setting portion; and a changing control portion which controls the gap changing device to change the gap between the recording head and the recording medium, according to the judged setting direction of the recording medium.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: April 5, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Naokazu Tanahashi, Noritsugu Ito, Shingo Ito, Wataru Sugiyama
  • Patent number: 7918530
    Abstract: A cleaning system for an inkjet printhead comprises an inkjet printhead having an inkjet nozzle array associated therewith. The inkjet printhead is in fluid communication with a first source of a first pressurized fluid. A fluid nozzle associated with the inkjet printhead is in fluid communication with a second source of a second pressurized fluid. The cleaning system further comprises a collection plate. Ink is forcibly ejected from the inkjet printhead by the first source of the first pressurized fluid. A stream of the second pressurized fluid is guided by the fluid nozzle across a surface of the inkjet printhead to direct ink ejected from the inkjet printhead onto the collection plate.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: April 5, 2011
    Assignee: RR Donnelley
    Inventors: Dan E. Kanfoush, Kevin J. Hook, Anthony V. Moscato, Theodore Cyman, Jr., Lawrence A. Pilon
  • Publication number: 20110069113
    Abstract: A liquid ejecting apparatus includes a liquid ejecting head which ejects liquid containing metallic particles from a nozzle with respect to a target, the liquid ejecting head being disposed so that the nozzle opens facing a direction higher than a horizontal direction, and ejects the liquid from the nozzle facing the direction higher than the horizontal direction, thereby attaching the liquid to the target.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 24, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kazutoshi SHIMIZU, Yasushi AKATSUKA, Norihiro MASUDA, Kazutoshi FUJISAWA
  • Patent number: 7908996
    Abstract: A liquid coating apparatus, including; a head which has plural nozzles which eject liquid in which plural particles are dispersed, plural pressuring chambers each communicates to each nozzle, a piezo element which is provided on the pressuring chamber to change a volume of the pressuring chamber, and a common liquid chamber which communicates to each of the plural pressuring chambers; a sub-tank which stores the liquid and has an acceleration device to accelerate the plural particles to disperse in the liquid; a first flow channel which connects the common liquid chamber with the sub-tank; a second flow channel which connects the common liquid chamber with the sub-tank; and a circulation device which circulates the liquid through a circulation flow channel which includes the common liquid chamber, the first flow channel, the sub-tank and the second flow channel.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: March 22, 2011
    Assignee: Konica Minolta Holdings, Inc.
    Inventor: Katsuaki Komatsu
  • Patent number: 7909431
    Abstract: An image recording apparatus includes liquid ejection heads, wipers, and a movement means. The liquid ejection heads respectively have ejection faces, and are arranged in such a manner that the ejection faces form two rows extending in one direction and in addition two of the ejection faces included in different rows do not overlap each other along a direction perpendicular to the one direction. The liquid ejection heads are divided into one or more head groups each including two of the liquid ejection heads corresponding to the different rows. The movement means moves two of the wipers associated with two liquid ejection heads belonging to each head group, from inner end portions of the ejection faces in opposite directions along the perpendicular direction while keeping the two wipers in contact with the ejection faces.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: March 22, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiroshi Taira
  • Patent number: 7905571
    Abstract: A waste ink container includes a container main body which forms a chamber to accumulate waste ink therein. An upper plate covers an upper part of the chamber and includes an opening to introduce a plurality of waste ink droplets therethrough. A waste ink containment device includes a discharge preventing unit which is adjacent to the opening and extends from the upper part of the chamber to inhibit the waste ink droplets from being discharged through the opening.
    Type: Grant
    Filed: April 8, 2008
    Date of Patent: March 15, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chang-soo Byun
  • Patent number: 7901029
    Abstract: A method for ink jet printing includes moving one or more receivers along a printing pass, ejecting ink drops from a first ink jet print head on a first receiver region of the one or more receivers in the printing pass, ejecting ink drops from a second ink jet print head on a second receiver region of the one or more receivers in the printing pass, and providing maintenance to the first ink jet print head while the second ink jet print head ejects ink drops on the first receiver region or the second receiver region.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: March 8, 2011
    Assignee: FUJIFILM Dimatix, Inc.
    Inventor: Richard Baker
  • Patent number: 7901030
    Abstract: An inkjet recording apparatus, including: a conveyance device including an endless belt which conveys a recording medium placed on an exterior surface of the endless belt; a recording device which jets ink onto the recording medium conveyed by the conveyance device; and a cleaning device to clean the surface, including, a flexible sheet member mounted more downstream in a conveyance direction of the belt than a position where the recording device is mounted, and a top of the flexible sheet member comes into slidably contact with the surface, and an elastic supporting member mounted at a side of the flexible sheet member; wherein when the flexible sheet member bends due to running of the belt, the elastic supporting member comes into contact with the flexible sheet member, and the elastic supporting member pushes the flexible sheet member so that the flexible sheet member presses against the surface of the belt.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: March 8, 2011
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Kyosei Miyata, Naoki Otomo
  • Patent number: 7901033
    Abstract: A capping device for a fluid ejection device, includes: a cap having a fluid receptacle and a first fluid path; a cap holder supporting the cap and having a second fluid path; and an absorber disposed between and supported by the cap and the cap holder, the absorber having a third fluid path. Negative pressure is applicable to the fluid receptacle at least through the first, second and third fluid paths.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: March 8, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Katsunori Nishida
  • Publication number: 20110050794
    Abstract: A liquid ejecting apparatus provided with N (N?2) liquid ejecting heads which eject liquid, the liquid ejecting apparatus including a supply path through which liquid is supplied from a tank to the N liquid ejecting heads, a circulation path through which liquid is returned from the liquid ejecting heads to the tank, N opening and closing valves that are installed for each liquid ejecting head on at least one of the supply path and the circulation path, and a liquid sending unit that applies a force sending the liquid from the tank toward the liquid ejecting heads. M opening and closing valves corresponding to M (M<N) liquid ejecting heads selected as cleaning targets are selected to be opened among the N opening and closing valves and the liquid sending unit is driven, to selectively send liquid to the M liquid ejecting heads of the cleaning targets among the N liquid ejecting heads, thereby performing cleaning.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 3, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kaoru Koike, Toshio Kumagai, Tadayuki Yoshimoto
  • Publication number: 20110050793
    Abstract: A liquid ejecting apparatus that includes liquid ejecting heads ejecting a liquid includes: a supply passage permitting a tank storing the liquid to communicate with the plurality of liquid ejecting heads and supplying the liquid from the tank to the liquid ejecting heads; and a circulation passage permitting the liquid ejecting heads to communicate with the tank and circulating the liquid from the liquid ejecting heads to the tank. The plurality of liquid ejecting heads eject the liquid, while circulating the liquid along a path from the tank to the plurality of liquid ejecting heads via the supply passage and the circulation passage. A passage resistance of the circulation passage is set to be smaller than a passage resistance of the supply passage.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 3, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Toshio Kumagai, Kaoru Koike
  • Patent number: 7891759
    Abstract: 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 connected to a vacuum source and one or more orifices connected to a wash solution source. The vacuum source can be used to extract ink from within the cartridge through nozzles in the printhead. The wash solution source can supply a pressurized wash solution through the nozzles of the printhead. The vacuum source can also be use to extract the wash solution from within the cartridge through the nozzles.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: February 22, 2011
    Assignee: Retail Inkjet Solutions, Inc.
    Inventors: Jason Guhse, Herb Sarnoff, Scott Shultz, Brian J. Fox
  • Patent number: 7891763
    Abstract: A printhead maintenance facility for an inkjet printer that has a printhead with the nozzle face defining an array of nozzles. The printhead maintenance facility has a wiper member for wiping the nozzle face, and a maintenance drive for moving the wiper member across the array of nozzles in the nozzle face. The wiper member has a plurality of parallel blades, each of the plurality of blades being dimensioned to wipe all the nozzles in a single traverse across the nozzle face.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: February 22, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Christopher Hibbard, Paul Ian Mackey, Makomo Tsubono, Nicholas Kenneth Abraham, Kia Silverbrook
  • Patent number: 7887179
    Abstract: An inkjet recording apparatus includes a platen holding a recording medium at a position opposed to a recording head, a suction generating member for suctioning the recording medium to the platen, a first recessed portion provided at a region on the platen and connected with the suction generating member, where the region faces a scanning area of the recording head, and a second recessed portion provided at a position on the platen and connected with the suction generating member, where the second recessed portion is provided on the downstream side of a region opposed to the scanning area and provided at a position corresponding to an end portion of the recording medium to be conveyed.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: February 15, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shinji Toyoshima
  • Patent number: 7883173
    Abstract: An automated document processing system including a printing system is disclosed. The printing system includes a carriage mountable adjacent to a path of travel of a printable surface. The system also includes a print cartridge housing configured to hold a print cartridge having a printing aperture oriented toward the path of travel of the printable surface. The print cartridge housing is mounted to the chassis and moveable in a direction normal to the path of travel of the printable surface. The system further includes a clean and park station pivotally mounted to the chassis and capable of pivoting across the printing aperture of the print cartridge to wipe and cover the printing aperture. In the system disclosed, the print cartridge housing and the clean and park station are moveable between a printing position and a parked position.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: February 8, 2011
    Assignee: Burroughs Payment Systems, Inc.
    Inventors: David B. Tratar, Johan P. Bakker