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:
Apr. 10, 2018

Filed:

Apr. 17, 2017
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Takahiro Kamikura, Tokyo, JP;

Satoru Takezawa, Abiko, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 15/043 (2006.01);
U.S. Cl.
CPC ...
G03G 15/043 (2013.01);
Abstract

An image forming apparatus including: a setting unit configured to set light intensity correction data stored in a storage unit according to an exposure position while a light beam is being scanned on a photosensitive member at a first scan speed; and a light intensity controller configured to control a light intensity based on the correction data set by the setting unit, wherein the setting unit calculates a light intensity correction data corresponding to a position between a plurality of positions based on the stored correction data, set the correction data according to the exposure position while the light beam is being scanned at a second scan speed lower than the first scan speed; and fixes a switching period for switching the correction data according to the exposure position while the light beam is being scanned on an image forming area of the photosensitive member regardless of the scan speed.


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