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:
Jun. 19, 2012
Filed:
Apr. 09, 2008
Satoru Yamamoto, Abiko, JP;
Ichiro Sasaki, Toride, JP;
Naohisa Nagata, Moriya, JP;
Akinobu Nishikata, Abiko, JP;
Hiroshi Matsumoto, Toride, JP;
Satoru Yamamoto, Abiko, JP;
Ichiro Sasaki, Toride, JP;
Naohisa Nagata, Moriya, JP;
Akinobu Nishikata, Abiko, JP;
Hiroshi Matsumoto, Toride, JP;
Canon Kabushiki Kaisha, , JP;
Abstract
An image forming apparatus capable of reducing damage in a fixing section and printing a high-quality image on a sheet at low cost without reducing productivity. A sheet shifting mechanism is arranged upstream of a transfer roller and moves the sheet in a sheet lateral direction orthogonal to the sheet conveying direction. In order to change a position at which a sheet passes through a fixing roller, the sheet shifting mechanism is controlled for every conveyance of a predetermined number of sheets, whereby sheet movement in the sheet lateral direction is controlled. A correction amount for an error due to sheet shifting by the sheet shifting mechanism is stored for each of sheet shift positions. An image forming position in the sheet lateral direction of a photosensitive drum is shifted on the basis of the sheet shift position and the stored correction amount.