Patents by Inventor Clement J. Nagley

Clement J. Nagley 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).

  • Electrostatic target recalculation in a xerographic imaging apparatus
    Patent number: 5138378
    Abstract: Recalculation of electrostatic target values in a tri-level imaging apparatus are utilized to extend the useful life of the photoreceptor (P/R). The increase in residual voltage due to P/R aging which would normally necessitate P/R disposal is obviated by resetting the target voltage for the full ROS exposure when it reaches its exposure limit with current P/R conditions. All contrast voltage targets are then recalculated based on this new target.The new targets are calculated based on current capability of the overall system and the latitude is based on voltage instead of exposure.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: August 11, 1992
    Assignee: Xerox Corporation
    Inventors: Daniel W. MacDonald, Robin E. Berman, Carl B. Hurwitch, Mark A. Scheuer, Clement J. Nagley