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. 15, 2009
Filed:
Sep. 28, 2006
Noriyoshi Chizawa, Moriya, JP;
Yoshihito Osari, Tokyo, JP;
Michio Kawase, Abiko, JP;
Masashi Oyumi, Abiko, JP;
Shigeo Hata, Toride, JP;
Kiyoshi Okamoto, Moriya, JP;
Noriyoshi Chizawa, Moriya, JP;
Yoshihito Osari, Tokyo, JP;
Michio Kawase, Abiko, JP;
Masashi Oyumi, Abiko, JP;
Shigeo Hata, Toride, JP;
Kiyoshi Okamoto, Moriya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a position detection circuit which detects the registration error amount between a recording medium conveyance unit and an image forming unit positioned by a positioning mechanism, on the basis of reading of a reference pattern arranged on either unit, and a controller which calculates a correction amount on the basis of the detected registration error amount and controls the operation timings of the image forming unit and recording medium conveyance unit in accordance with the correction amount.