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:
Sep. 27, 2016
Filed:
Jul. 28, 2015
Sho Sekiguchi, Tokyo, JP;
Takeshi Kojima, Kanagawa, JP;
Tomoya Ohmura, Kanagawa, JP;
Hiroomi Tamura, Kanagawa, JP;
Tetsuto Ueda, Kanagawa, JP;
Kazuya Saitoh, Kanagawa, JP;
Taichi Urayama, Kanagawa, JP;
Takuya Moriyama, Kanagawa, JP;
Naoyuki Ozaki, Kanagawa, JP;
Sho Sekiguchi, Tokyo, JP;
Takeshi Kojima, Kanagawa, JP;
Tomoya Ohmura, Kanagawa, JP;
Hiroomi Tamura, Kanagawa, JP;
Tetsuto Ueda, Kanagawa, JP;
Kazuya Saitoh, Kanagawa, JP;
Taichi Urayama, Kanagawa, JP;
Takuya Moriyama, Kanagawa, JP;
Naoyuki Ozaki, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus is provided in which, during a continuous sheet passing, in the case where a between-sheets time is short, none of a cleaning mode and a drive OFF mode is performed; in the case where the between-sheets time is of a medium length of time, the cleaning mode is performed but the drive OFF mode is not performed; and in the case where the between-sheets time is long, both the cleaning mode and the drive OFF mode are performed. As a result, degradation of an image bearer due to the cleaning bias is alleviated, decreased productivity due to the cleaning mode is alleviated, a problem is alleviated in which a back surface of a recording medium gets dirty due to toner adhered to a transfer rotation body, and another problem is alleviated in which the service life of a driven member is shortened.