Patents Represented by Attorney, Agent or Law Firm Leslie Weise
  • Patent number: 5416572
    Abstract: An agglomerate spot cleaning blade is supported to cleaning housing, thereby forming a substantially enclosed chamber, in sealing engagement with respect to the photoreceptor surface. Contact is maintained between a cleaning brush, located within a cleaning housing, and a blade, whereby rotating brush fibers remove accumulated agglomerate debris particles from the blade. A substantially air-flow free environment is maintained for removal of residual toner and debris from the photoreceptor surface and the blade, without the need for a separate vacuum/air removal system assist, or a separate manual maintenance step.
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: May 16, 1995
    Assignee: Xerox Corporation
    Inventors: Steven E. Kolb, John C. DeMott, Carl F. Oresick
  • Patent number: 5349428
    Abstract: A thin scraper blade member is arranged in interference with, and at a low angle of attack with respect to the photoreceptor so that a maximum shearing force can be applied by the blade to the spot-causing agglomerate particles for removal thereof. A slit extends laterally from one side of the blade and parallel to the edge of the blade, so that blade tuck occurrence is minimized. The slits serve to reduce the load and eliminate forces on the ends of the blade that cause the blade to tuck under. The slit also improves the range of tolerance of interference of the blade surface with respect to the photoreceptor surface before blade tuck occurs. A relatively low load is applied to the blade, so that the problems associated with the frictional sealing contact that must occur in the normal cleaning engagement of blades with a charge retentive surface are avoided.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: September 20, 1994
    Assignee: Xerox Corporation
    Inventor: John F. Derrick