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:
Dec. 21, 1976
Filed:
Mar. 10, 1975
Applicant:
Inventor:
Wayne L Kidd, Fairport, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355-4 ; 315201 ; 315324 ; 355 69 ; 355 70 ;
Abstract
An electrophotographic copying machine having a moving photoconductive member, in which an original document is illuminated by a pair of light sources, which are energized alternately to illuminate the document at a frequency of 240 hertz. This frequency of illumination prevents visible lines in the copy.