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:
Nov. 22, 2016
Filed:
Nov. 13, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Kenji Karashima, Tokyo, JP;
Satoshi Tsuruya, Mishima, JP;
Yoshikuni Ito, Tokyo, JP;
Yasuhiro Horiguchi, Kawasaki, JP;
Takeshi Fujino, Abiko, JP;
Takahiro Kawamoto, Yokohama, JP;
Takayuki Tanaka, Tokyo, JP;
Osamu Iwasaki, Yokohama, JP;
Kazunari Hagiwara, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention relates to an image forming apparatus that forms an image by consecutively superposing toner images that have been formed on a plurality of photosensitive drums, on an intermediate transfer member or a transfer medium. The image forming apparatus is made compact and operates at a low cost. Since a current supply member supplies a current in a rotational direction of an intermediate transfer belt, multiple first transfer portions do not need corresponding voltage sources. Even in the case where a charging member supplies a current, the potential of the intermediate transfer belt is maintained at a predetermined potential by a constant-voltage element connected to support rollers.