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:
Oct. 22, 2002
Filed:
Dec. 22, 1997
Applicant:
Inventor:
Hayato Shinohara, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 1/500 ;
U.S. Cl.
CPC ...
G03G 1/500 ;
Abstract
A color image forming apparatus for forming images in a mono-chromatic and full-color mode on an image bearing member by an electrophotographic system controls a cleaning device to operate for a time period according to a specific weighting factor corresponding to whether the image forming apparatus is in the mono-chromatic or full-color mode. In this manner, excess operating time of the cleaning device is eliminated to thereby enable the image forming speed to be improved. The image bearing member is an intermediate transfer member.