Patents by Inventor Austin Lloyd Richards

Austin Lloyd Richards has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Open loop print speed control
    Patent number: 8297728
    Abstract: A method enables adjustment of a print speed for a phase change ink imaging device with reference to an ink level sensor in a print head reservoir indicating an open loop or a closed loop state. The adjustment may also be made with reference to a measured image density, which may be a rolling solid area coverage average.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: October 30, 2012
    Assignee: Xerox Corporation
    Inventors: Austin Lloyd Richards, William Bruce Weaver, Michael Kenneth Oehl
  • Open Loop Print Speed Control
    Publication number: 20100321427
    Abstract: A method enables adjustment of a print speed for a phase change ink imaging device with reference to an ink level sensor in a print head reservoir indicating an open loop or a closed loop state. The adjustment may also be made with reference to a measured image density, which may be a rolling solid area coverage average.
    Type: Application
    Filed: September 1, 2010
    Publication date: December 23, 2010
    Applicant: XEROX CORPORATION
    Inventors: Austin Lloyd Richards, William Bruce Weaver, Michael Kenneth Oehl
  • Open loop print speed control
    Patent number: 7832819
    Abstract: A method for controlling print speed of an imaging device is provided. The imaging device includes at least one reservoir for supplying liquid ink to a print head and a level sensor in the reservoir. The method comprises measuring an image density of at least a portion of a print job for the imaging device. A state of a level sensor in a print head reservoir is detected. The print speed is adjusted to a target speed in response to the level sensor indicating an open loop state. The target speed is a function of the image density. The print speed is adjusted to a default speed in response to the level sensor indicating a closed loop state.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: November 16, 2010
    Assignee: Xerox Corporation
    Inventors: Austin Lloyd Richards, William Bruce Weaver, Michael Kenneth Oehl
  • Open loop print speed control
    Publication number: 20080094430
    Abstract: A method for controlling print speed of an imaging device is provided. The imaging device includes at least one reservoir for supplying liquid ink to a print head and a level sensor in the reservoir. The method comprises measuring an image density of at least a portion of a print job for the imaging device. A state of a level sensor in a print head reservoir is detected. The print speed is adjusted to a target speed in response to the level sensor indicating an open loop state. The target speed is a function of the image density. The print speed is adjusted to a default speed in response to the level sensor indicating a closed loop state.
    Type: Application
    Filed: October 20, 2006
    Publication date: April 24, 2008
    Applicant: Xerox Corporation
    Inventors: Austin Lloyd Richards, William Bruce Weaver, Michael Kenneth Oehl