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:
Apr. 29, 1986
Filed:
Aug. 27, 1984
Applicant:
Inventor:
Vittal U Shenoy, Fairport, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 / ; 355 / ; 355 / ; 271154 ;
Abstract
An electrophotographic printing machine in which a variable magnification optical system is controlled so that information being reproduced from an original document fits on a copy sheet. The size of the original document is sensed. The device sensing the size of the original document has a minimum number of detectors to measure a maximum number of different size original documents. The size of the copy sheet is compared to the size of the original document and an error signal generated indicative of the difference therebetween. This error signal controls the magnification of the optical system.