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. 10, 1993
Filed:
Aug. 29, 1991
Applicant:
Inventors:
Hideki Tada, Yokohama, JP;
Hisayoshi Kojima, Yokohama, JP;
Masanori Yamagata, Yokohama, JP;
Toshiki Nagase, Hoya, JP;
Akira Ito, Tokyo, JP;
Mitsugu Inomata, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
355200 ; 355210 ; 355260 ; 355326 ; 355327 ;
Abstract
A process cartridge integrally supports an electrophotographic photosensitive member and a plurality of developing units and removable with respect to an image forming apparatus. The driving force from the image forming apparatus can be selectively transmitted to any one of the developing units and the transmission of the driving force to all of the developing units is blocked during the non-image forming process. Thus, the operability of dismounting of the cartridge from the image forming apparatus is improved.