Patents by Inventor Stephen A. Oleksa

Stephen A. Oleksa 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).

  • Electrophotographic reproduction apparatus having improved fuser to prevent wrinkling of envelopes using intermittent pressure
    Patent number: 5268726
    Abstract: An electrophotographic printer (11) including a fuser (16, 17) for fusing a toned image onto an envelope (13) passing through a fuser nip (14). Wrinkling and treeing of the envelope (13) is substantially eliminated by removing the pressure on the envelope (13) in the fuser nip (14) for one or more brief intervals during the fusing process. To do this, a solenoid (21) is intermittently driven to remove the force of a spring (18) urging the fuser rolls (16, 17) together.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: December 7, 1993
    Assignee: Lexmark International, Inc.
    Inventors: Stephen A. Oleksa, Larry J. Rice, John O. Schaefer