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, 2009
Filed:
Feb. 21, 2008
Kuniyasu Kimura, Toride, JP;
Eiichi Motoyama, Shinjuku-ku, JP;
Yoshihito Osari, Chuo-ku, JP;
Hiroaki Tomiyasu, Toride, JP;
Takahiko Yamaoka, Kashiwa, JP;
Yuichi Yamamoto, Abiko, JP;
Kuniyasu Kimura, Toride, JP;
Eiichi Motoyama, Shinjuku-ku, JP;
Yoshihito Osari, Chuo-ku, JP;
Hiroaki Tomiyasu, Toride, JP;
Takahiko Yamaoka, Kashiwa, JP;
Yuichi Yamamoto, Abiko, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus changes over an electric potential on an image bearing member in response to an attenuation region in which a remaining potential on a developing member is attenuating after a developing bias applied to the developing member has been turned off after completion of an image forming operations. Accordingly, it is possible to mitigate adherence of developer due to a large potential difference between the developing member and the image bearing member.