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:
Aug. 05, 1986
Filed:
Oct. 22, 1984
Gregory B Swistak, Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A charge scorotron having a U-shaped shield positionable opposite a photoreceptor, a corona discharge wire in the shield, a grid between the wire and the photoreceptor for controlling the emission of ions to the photoreceptor, the grid being electrically subdivided into a first grid segment with a length substantially equal to the dimension of the smallest size copy sheet with subsequent grid segments having lengths chosen when combined with the first grid segment and each other to substantially equal various larger size copy sheets, switches responsive to the position of an adjustable sheet guide in the copy sheet supply tray connecting each of the other grid segments with the grid bias selectively, the switches when not actuated coupling the grid segment associated therewith to ground whereby the area of the photoreceptor charged is determined by the number of grid segments coupled to the grid bias in response to the size copy sheet being processed.