Patents by Inventor Jacqueline M. Christensen

Jacqueline M. Christensen 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: 5930569
    Abstract: An image development system for developing a latent image on an imaging surface, such as a xerographic photoreceptor, with plural development rollers having internal axially extending developer magnets with relatively offset axial end positions, and wherein at least one development roller has a smooth surface area at that same end, to reduce edge banding image defects from the interaction of the axial ends of the magnets of adjacent development rollers, especially for large size copy sheets being printed, such as B4 size. The image developer unit may have three development rollers with three different lengths of developer magnets to provide three different magnetic end positions staggered on opposite sides of the end position of the large sheet (relative to the imaging surface).
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: July 27, 1999
    Assignee: Xerox Corporation
    Inventors: Norman L. Roof, Jr., Timothy P. Foley, Daniel R. Maurer, Jacqueline M. Christensen, Cho Y. Sze, Raymond L. Mongeon