Patents by Inventor Ray Wartinger

Ray Wartinger 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).

  • Thermal inkjet print head with blended enable trains
    Patent number: 6808243
    Abstract: A series of enable trains are designed to provide a predetermined increment of heat to the heating element of a thermal ink jet printer printhead. The enable trains are stored in tabular form in memory according to printhead temperature. The printhead temperature is sensed during the printing cycle and read by the printhead controller. The controller selects a enable train from the table and applies it to the heating element. When subsequent cycles call for a change in the enable train, the current enable train is blended with the new enable train to provide an average increment of heat.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: October 26, 2004
    Assignee: Xerox Corporation
    Inventors: Roger Guy Markham, Ray Wartinger