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. 04, 1987
Filed:
Sep. 27, 1985
Wayne A Buchar, Holcomb, NY (US);
James P Russell, Ontario, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A scanning system for an electrophotographic printing machine is adapted to alleviate the problem of platen overheating when the machine is operated in a mode wherein documents are stream-fed past an exposure zone formed by a stationary scan/illumination assembly. The scanning system includes a scan/illumination assembly which moves beneath a stationary platen during a first, copying mode. When the mode of operation changes and the documents are stream-fed along the platen surface, the illumination/scan assembly is held stationary during each exposure cycle but is periodically moved to new positions during subsequent exposure cycles. A system controller monitors the stream-fed mode of operation and adjusts system timing and registration functions to compensate for the alternate scan/illumination exposure positions.