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:
Nov. 02, 1982
Filed:
Jan. 26, 1981
Applicant:
Inventors:
Kazuo Sugawa, Saitama, JP;
Norio Amemiya, Hachioji, JP;
Assignee:
Olympus Optical Company Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 / ; 355 / ; 355 25 ; 355 75 ;
Abstract
A copying machine includes a shutter mechanism comprising a light shield member which intercepts the incidence of extraneous light onto a photosensitive drum through an exposure window, and a detecting member which is operated by a cover which forms a conveyor unit for a sheet-shaped original or by a book carrier on which a thick original is placed. A movement of the light shield member into or out of an exposure light path is controlled by the operation of the detecting member.