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. 22, 1988
Filed:
May. 09, 1986
Applicant:
Inventors:
Gary S Beardsley, Morgan Hill, CA (US);
Michael H Lee, San Jose, CA (US);
Assignee:
International Business Machines Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 / ; 355 / ; 355 15 ;
Abstract
An electrophotographic apparatus is provided with an electrically conductive voltage control bar between the photoconductor drum or belt and the developer or developer/cleaner roll. The voltage control bar prevents toner filming on said cleaning roll, and makes it possible for that roll to be made of an insulating material such as molded plastic.