Patents by Inventor Eric L. Ziercher

Eric L. Ziercher 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).

  • Photoconductor for abrasion in liquid systems
    Patent number: 5500724
    Abstract: In a liquid toner electrophotographic printer (1), an abrasive blade (5), located between the cleaning station (19) and the charging station (9) disturbs the outer, photoconductive surface of drum (3) to continuously rejuvenate that surface. The abrasion merely disturbs the surface and may be accomplished by alternative abrasive mechanisms.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: March 19, 1996
    Assignee: Lexmark International, Inc.
    Inventors: Alan S. Campbell, Donald L. Elbert, William C. McCornack, Eric L. Ziercher
  • Liquid toner imaging with contact charging
    Patent number: 5406356
    Abstract: An electrophotographic device (1) in which a photoconductor drum (3) is charged by a charging roller (5). Insulating liquid (19, 30) is applied at their initial nip. The charging roller both charges and squeegees largely dry the photoconductor member. The liquid (19) may be produced by incomplete cleaning by a cleaning blade (21). Excess liquid is collected at the sides.This results in reduction in foreign gasses, and reduction in the operating potential between photoconductor drum and charging roller.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: April 11, 1995
    Assignee: Lexmark International, Inc.
    Inventors: Alan S. Campbell, Curt J. Claflin, Randy L. Fagerquist, Tracy G. Floyd, Brenda M. Kelly, Ronald L. Roe, Eric L. Ziercher