Patents Examined by Blaise Mouttet
  • Patent number: 7097266
    Abstract: An image printing apparatus is capable of printing an image at various resolutions, such as 300- and 360-dpi systems. To drive a printhead at a printing position corresponding to the resolution of printing data, information on whether to discharge ink separately in the forward and return passes of the printhead is stored in the storage area of a RAM in advance in correspondence with the main scanning position of the printhead. Data (0 or 1) stored in the RAM is read out by using, as a RAM address input, a count value output from a printhead position detection unit that represents the current position of the printhead. Only when the readout data is 1, a printing position pulse is generated to print an image at an arbitrary resolution. By setting ink discharge positions separately in the forward and return passes, an image can be printed at a high precision.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: August 29, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuji Tsuruoka, Takashi Mouri
  • Patent number: 7018014
    Abstract: An emulator is provided for an ink tank. The emulator duplicates one or more of the ink tank features, which are sensed by a print engine to permit proper operation of the print engine. The emulator is an element designed to be attached to an ink tank which lacks one or more of the aforementioned ink tank features which are sensed by the print engine to ensure proper operation of the print engine. The emulator may attach to an ink tank which is placed into an ink tank receptacle or may fit by itself into the ink tank receptacle. The emulator will permit ink tanks to be used in print engines without the need to provide the one or more sensed features for each ink tank.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: March 28, 2006
    Assignee: Xerox Corporation
    Inventor: Jeffrey M. Koff
  • Patent number: 6974205
    Abstract: A printhead includes a substrate having a plurality of fluid heating elements and at least one peripheral edge. Fluid channels deliver fluid to the plurality of fluid heating elements. The plurality of fluid channels includes at least one edgefeed fluid channel defined by the at least one peripheral edge, and at least one slot feed fluid channel.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: December 13, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Simon Dodd
  • Patent number: 6969136
    Abstract: An ink cartridge for an ink jet type printing apparatus having a print head, the ink cartridge including: a container having an ink chamber for containing ink therein; an ink supply port for ejecting the ink from the ink chamber to the print head; a memory device for storing data related to the ink or the ink cartridge, the memory device has an area in which the data is stored in a rewritable manner; and a contact device enabling the transmission of data between the memory device and an external device. The memory device may include data indicative of the history of the ink cartridge which may be utilized to control a reproduction of the ink cartridge.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: November 29, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Hitoshi Matsumoto, Takahiro Naka
  • Patent number: 6969142
    Abstract: A method of detecting a fault condition in a micro-electromechanical device includes the step of applying at least one current pulse to an actuator of the device such that the actuator is cyclically displaced at least once. The extent of displacement of the actuator is determined. The device is calibrated by determining a relationship between an operational parameter and said displacement. The device is tested by applying said parameter to the device, such that an error is detectable where said relationship is not achieved.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: November 29, 2005
    Assignee: Silverbrook Research, PTY LTD
    Inventor: Kia Silverbrook
  • Patent number: 6962398
    Abstract: A method of driving an ink jet recording head, and an ink jet recording apparatus. A driving wave form for driving a piezoelectric actuator includes a first voltage changing process to compress a pressure generating chamber with a rise time of t1, and a second voltage changing process to expand the pressure generating chamber with a fall time of t3 after the voltage is maintained during a time of t2. The start time, the voltage changing time, and the voltage variation of the second voltage changing process are set so that, in a room temperature environment, a first peak value v1 and a second peak value v1 of particle velocity generated at the nozzle section satisfy the condition: 0.3?v2/v1?0.6.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: November 8, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masakazu Okuda, Tomohiro Wada
  • Patent number: 6951375
    Abstract: A method and apparatus for printing an image on a large surface area or walkway provides for imagewise marking of the surface with a color marking solution, to form a visible image on the surface during an image recording mode of a marking engine. The marking engine includes a scanner and the marking engine moves along the surface and operates the scanner to sense a crude image upon the surface and generates data signals representing the crude image or boundaries defined by the crude image scanned. In response to data signals the marking engine is operated to print an enhanced image of the crude image and/or to color the crude image so that the printing overlies the crude image.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: October 4, 2005
    Assignee: Eastman Kodak Company
    Inventors: David L. Patton, Loretta E. Allen, Dale F. McIntyre, Steven S. Chapman, Jacob L. Pietruszewski
  • Patent number: 6951376
    Abstract: There is described inkjet recording method and apparatus capable of printing very fine images stably on every type of printing material. The apparatus includes an ink-heating section to heat ink; an ink-jetting head having an ink channel, a volume of which is expanded and shrunken by applying a first electronic pulse and by successively applying a second electronic pulse, to emit an ink particle from a nozzle of the ink channel onto a recording medium so as to form the image on the recording medium; and an ultraviolet light irradiating section to irradiate ultraviolet light onto the recording medium for fixing the image; wherein, at a time after the ink particle is emitted by applying a first driving pulse to the ink channel and before an ink meniscus, formed at the nozzle, grows to an original stable state, a next ink particle is emitted by applying a second driving pulse.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: October 4, 2005
    Assignee: Konica Corporation
    Inventor: Wataru Ishikawa
  • Patent number: 6951382
    Abstract: An ink jet printing apparatus and an ink jet printing method according to the present invention suppress a variation in the density of ink in a supply channel and a print head without the need for useless recovery operations, thus always providing very reliable high-grade images. The ink jet printing apparatus carries out printing using a print head for ejecting ink. The apparatus includes a scanning unit for causing the print head to scan across a printing medium, a measuring unit for measuring a time from an end of a preceding printing operation until a start of a current printing operation, and a determining unit for determining whether or not a result of measurement executed by the measuring unit exceeds a predetermined value. The scanning unit causes the print head to carry out at least one idle scan before the start of a printing operation depending on a result of determination made by the determining unit.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: October 4, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiharu Inui, Yoshito Mizoguchi, Takumi Kaneko, Atsushi Arai
  • Patent number: 6951377
    Abstract: A flexible package, and method for manufacturing same, that provides for the presentation of graphics inside the package using existing converter and vertical form and fill packaging machine technology. The invention involves pre-treating an area with ionized gases prior to the addition of the graphic to allow the graphic to adhere to the surface.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: October 4, 2005
    Assignee: Frito-Lay North America, Inc.
    Inventors: Anthony Robert Knoerzer, Garrett William Kohl
  • Patent number: 6945633
    Abstract: A liquid discharge head substrate used for a liquid discharge head is adapted to discharge liquid by applying discharge energy to the liquid. The substrate is a semiconductor substrate including an energy conversion element for converting electric energy into the discharge energy and a function element made of a ferroelectric material.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: September 20, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiyuki Imanaka, Sadayuki Sugama, Ichiro Saito, Hiroyuki Ishinaga, Akihiro Yamanaka, Masahiko Kubota
  • Patent number: 6942313
    Abstract: In a printing apparatus which prints by scanning a printhead having an array of printing elements on a printing medium in a direction crossing to a direction of the array, when a test pattern for verifying the printing characteristic of each printing element is to be printed, adjacent printing elements are driven in parallel to print a straight pattern with a predetermined length in the scanning direction. Printing of a straight pattern is executed a plurality of number of times so as to use all the printing elements for printing at least one straight pattern. In the printed test pattern, variations between the printing characteristics of printing elements that do not pose any problem in actual printing do not stand out. A printing element which degrades the image quality upon actual printing can be determined.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: September 13, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hidehiko Kanda
  • Patent number: 6938970
    Abstract: A multipass printer and printing method is described for printing an image on a sheet printing medium using a page wide printing head. A transporting device provides relative movement between the sheet printing media and a first print head. A series of sheet printing media are presented to the first print head for printing in sequence. The first print head prints a first sub-image of at least one set of monochromatic mutually interstitially printed sub-images of a first image onto a first sheet of printing medium of the series in one pass. A sub-image of an image is printed in succession on each remaining one of the series of sheet printing media followed by printing a further sub-image of the at least one set of monochromatic mutually interstitially printed sub-images of the first image onto the first sheet printing medium.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: September 6, 2005
    Assignee: Agfa Gevaert
    Inventor: Patrick Van den Bergen
  • Patent number: 6938974
    Abstract: To provide an image recording apparatus and an image recording method which can restrain occurrence of an ink stain and achieve reduction of time for printing in the case of both-side recording. The apparatus includes a setting unit for variably setting a length of time between an end of recording on a first recording side (surface) of a recording medium and a start of recording on a second recording side (reverse side) of the recording medium in accordance with image data for recording on the first recording side of the recording medium.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: September 6, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kota Uchida
  • Patent number: 6938971
    Abstract: A method and apparatus for servicing a pen in an inkjet printing device includes receiving a print job, determining a level of print quality required for the print job, detecting the operating characteristics of a number of nozzles to be used to print the print job; and, in the event that the operating characteristics of the nozzles are sufficient to meet the level of print quality, printing the print job. A maintenance procedure may be scheduled in the event that an individual one of the nozzles is not fully functional. In addition, the maintenance procedure may be scheduled to be performed during a time when the inkjet printing device is idle.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: September 6, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Rosa Maria Gom z, Jose Jurjo, Tod S. Heiles, Marc Serra, Ramon Vega, Xavier Bruch
  • Patent number: 6938976
    Abstract: An inkjet printer adapted to sense type of supplied consumable receiver media, inks, printhead, and cleaning fluid. A transponder attached to a consumable is coupled to a memory device capable of storing information characteristic of the consumable. A transceiver is disposed within the inkjet printer, with antennae disposed for polling an individual transponder attached to each consumable. The transponder is capable of receiving a first RF frequency electromagnetic field from the transceiver and deriving power and address information from the first frequency, then generating a second RF frequency electromagnetic field in response, where the second electromagnetic field is characteristic of the data stored in memory. As instructed by a machine control logic processor, the transceiver can both read manufacturing data from the transponder about the consumable and write usage and processing data to the transponder for storage in memory.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: September 6, 2005
    Assignee: Eastman Kodak Company
    Inventors: Michael J. Siwinski, Scott C. Robinson, Robert W. Spurr, Timothy J. Tredwell
  • Patent number: 6938978
    Abstract: The present invention is a container for holding printing fluid material. The container includes a detector, a memory unit, a communication module, a first electric power generator, and a second electric power generator. The communication module is configured to transmit at least one of a result of the detection and the information regarding the container to the printing device. The first electric power generator is configured to generate a first electric power by utilizing the radio wave received from the printing device. The second electric power generator is configured to generate a second electric power from the first electric power. The second electric power is supplied to both the detector and the memory unit.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: September 6, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Yasuhiko Kosugi, Noboru Asauchi, Takakazu Fukano, Toshihisa Saruta, Eiichi Ishii
  • Patent number: 6937263
    Abstract: An image forming apparatus including a detector, a write controller, and a light controller. The detector detects, with an optical sensor, an edge of a recording medium in a direction perpendicular to a reading medium convey direction. The write controller shifts an image write position in the direction perpendicular to the recording medium convey direction on the basis of a detection result of the detector. The light controller controls a light emission amount of the optical sensor to set an output of the optical sensor to a predetermined value at a predetermined portion in an area where the detection result of the optical sensor is effective.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: August 30, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Teruhiko Namiki, Katsuhiro Wada
  • Patent number: 6935713
    Abstract: A method of printing cartridge maintenance including determining remaining useful life of a printing cartridge, and refilling at least a portion of the printing cartridge if the remaining useful life is above a predetermined threshold.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: August 30, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Quintin T. Phillips
  • Patent number: 6930315
    Abstract: A target object to be irradiated is transported into an irradiating chamber through a transport inlet for irradiation with an active energy beam under an inert gas atmosphere in an active energy beam irradiating section included in the irradiating chamber and, then is transported out of the irradiating chamber. When the object is subject to above steps, the gas flow resistance at the transport outlet is controlled such that the active energy beam irradiation is carried out under the condition of X/Y?1, where X represents the gas amount passing through the transport inlet, and Y represents the gas amount passing through the transport outlet.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: August 16, 2005
    Assignee: Toyo Ink Manufacturing Co., Ltd.
    Inventors: Hiroshi Tominaga, Akihiko Kizaki