The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 1992
Filed:
May. 31, 1990
Joseph Mammino, Penfield, NY (US);
Oscar G Hauser, Rochester, NY (US);
Dennis A Abramsohn, Pittsford, NY (US);
Deborah Nichol-Landry, Rochester, NY (US);
Donald S Sypula, Penfield, NY (US);
Robert Anderson, Fairport, NY (US);
Richard L Schank, Pittsford, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An ionographic imaging member has a conductive layer overcoated by a charge accepting layer. Overcoating layers of acrylate, polycarbonate, polyester, polyurethane, acrylic homopolymer or copolymer and the like are provided. Blocking layers may be provided for preventing charge injection and reducing surface charge decay and bulk charge trapping. The charge accepting layer may be doped with a charge clocking material for preventing charge injection. The overcoating and blocking layers may be one and the same.