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.

Date of Patent:
Sep. 13, 2011

Filed:

Sep. 17, 2008
Applicants:

Fumitoshi Okuda, Yatomi, JP;

Seijiro Kadowaki, Nagoya, JP;

Inventors:

Fumitoshi Okuda, Yatomi, JP;

Seijiro Kadowaki, Nagoya, JP;

Assignee:

Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

In an image forming apparatus, an image forming portion forms an image on a rotator. A storage portion stores change characteristics information relevant to correction parameters corresponding to phase points of the rotator. A designating portion designates a correction parameter from the correction parameters based on the change characteristics information. A correcting portion corrects an image forming position on the rotator based on the correction parameter designated by the designating portion. When a first determining portion determines, based on a detecting phase point of the rotator detected by a detecting portion, that the current phase of the rotator corresponds to a shifting phase point, and further a second determining portion determines that the image forming portion is in inactive time, the designation by said designating portion is shifted to the correction parameter corresponding to the shifting phase point.


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