Patents by Inventor David William Shuman

David William Shuman 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).

  • Patent number: 8725017
    Abstract: A printer is provided including a substrate transport apparatus; a pick mechanism; a fuser assembly having a heat transfer member including a belt and a heater, a backup member for engaging the belt so as to define a fusing nip with the belt, and a temperature sensor associated with the backup member for sensing the temperature of the backup member; and a controller coupled to the substrate transport apparatus, the pick mechanism, the heater and the temperature sensor. The controller causes the pick mechanism to remove substrates from the storage tray at a first pick rate when the backup member is at a temperature within a first backup member index temperature range and at different pick rate less than the first pick rate when the backup member is at a temperature greater than the first backup member index temperature range.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: May 13, 2014
    Assignee: Lexmark International, Inc.
    Inventors: Thomas Judson Campbell, Jichang Cao, William Paul Cook, Hrishikesh Pramod Gogate, David William Shuman
  • Publication number: 20090245838
    Abstract: A fuser assembly is provided comprising: a heat transfer member including a belt and a heater to heat the belt; a backup member adapted to engage the belt so as to define a fusing nip with the belt; a temperature sensor associated with the backup member for sensing the temperature of the backup member; and a controller coupled to the heater and the temperature sensor. The controller controls the operation of the heater based on the backup member temperature.
    Type: Application
    Filed: March 26, 2008
    Publication date: October 1, 2009
    Inventors: David William Shuman, Jichang Cao, Cyrus Bradford Clarke, William Paul Cook, Hrishikesh Pramod Gogate, Wesley David Mclntire, Thomas Judson Campbell
  • Publication number: 20090245837
    Abstract: A printer is provided comprising substrate transport apparatus for moving substrates through the printer along a substrate path; a pick mechanism for removing substrates from a storage tray and feeding the substrates to the substrate transport apparatus; a fuser assembly comprising a heat transfer member including a belt and a heater to heat the belt, a backup member adapted to engage the belt so as to define a fusing nip with the belt, and a temperature sensor associated with the backup member for sensing the temperature of the backup member; and a controller coupled to the substrate transport apparatus, the pick mechanism, the heater and the temperature sensor.
    Type: Application
    Filed: March 26, 2008
    Publication date: October 1, 2009
    Inventors: Thomas Judson Campbell, Jichang Cao, William Paul Cook, Hrishikesh Pramod Gogate, David William Shuman
  • Patent number: 6347197
    Abstract: An oil web system and method for operating a fuser system of an imaging apparatus in which remaining life of the oil web is determined from data on drive mechanism activation and data on web advancement lengths. A warning signal can be issued upon a predetermined remaining length being reached, and the machine can be disabled upon exhaustion of the web life.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: February 12, 2002
    Assignee: Lexmark International, Inc.
    Inventors: Michael David Maul, Edward Alan Rush, David William Shuman