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. 09, 2014
Filed:
Jan. 31, 2011
Tadashi Matsumoto, Tokyo, JP;
Sumitoshi Sootome, Yachiyo, JP;
Yasumi Yoshida, Yokohama, JP;
Shinji Yamamoto, Kawasaki, JP;
Takashi Hiratsuka, Tokorozawa, JP;
Toshihiro Fukasaka, Kawasaki, JP;
Tadashi Matsumoto, Tokyo, JP;
Sumitoshi Sootome, Yachiyo, JP;
Yasumi Yoshida, Yokohama, JP;
Shinji Yamamoto, Kawasaki, JP;
Takashi Hiratsuka, Tokorozawa, JP;
Toshihiro Fukasaka, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a rotatable belt member, a plurality of image forming members opposing the belt in an image forming region, a first detecting member configured to detect a position of the belt member with respect to a widthwise direction, a second detecting member configured to detect a moving direction, an adjusting roller configured to adjust the moving direction in the image forming region, the adjusting roller configured to adjust the moving direction in the image forming region, and a control portion configured to control a position of the adjusting roller on the basis of outputs of the first detecting member and the second detecting member without changing a position of the belt member in the image forming region in a direction perpendicular to a surface of the belt member.