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:
Mar. 31, 2015
Filed:
Aug. 17, 2011
Applicants:
Takuya Kitamura, Numazu, JP;
Hideo Kihara, Suntou-gun, JP;
Yuji Kawaguchi, Mishima, JP;
Kouki Yano, Kawasaki, JP;
Yuta Isobe, Susono, JP;
Inventors:
Takuya Kitamura, Numazu, JP;
Hideo Kihara, Suntou-gun, JP;
Yuji Kawaguchi, Mishima, JP;
Kouki Yano, Kawasaki, JP;
Yuta Isobe, Susono, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 21/00 (2006.01);
U.S. Cl.
CPC ...
G03G 21/0047 (2013.01);
Abstract
In an image forming apparatus, when no image is being formed, an image bearing member is rotated at least one rotation, in a state in which a transfer bias is controlled such that a potential on a surface of the image bearing member on the upstream side in the rotational direction of a cleaning apparatus is a polarity opposite to that of a developer.