Patents by Inventor Christopoher D. Jones

Christopoher D. Jones 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).

  • Electronic systems and methods for reducing laser beam process direction position errors
    Patent number: 7375738
    Abstract: Systems and methods are provided for electronically adjusting an image to compensate for laser beam process direction position errors in an electrophotographic device. Initially, a bow profile is defined that characterizes the process direction position errors of a laser beam across a scan line. The device subsequently reads an image to be printed from a first memory location, performs pixel shifts on select columns thereof based upon the bow profile, and temporarily stores the adjusted image data to a second location of memory. The adjusted image data is then communicated to a printhead of the device.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: May 20, 2008
    Assignee: Lexmark International, Inc.
    Inventors: William P. Corbett, Thomas A. Fields, Allen P. Johnson, Christopoher D. Jones