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.:

US 8854407 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 07, 2014

Filed:

Nov. 29, 2012
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Yasuo Kamei, Toride, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/45 (2006.01); B41J 2/435 (2006.01); B41J 2/47 (2006.01); G03G 15/043 (2006.01); G03G 15/04 (2006.01);
U.S. Cl.
CPC ...
G03G 15/04054 (2013.01); G03G 15/043 (2013.01);
Abstract

An image-forming position displaces from an ideal position occurring due to a portion of a support substrate bending in a direction approaching a photosensitive drum. This displacement is set as a first gap data. Spot size expansion caused by bending of the support substrate can be reduced by using light amount control data that has been corrected in response to this first gap data. Furthermore, by using light amount control data corrected in response to second gap data that indicates displacement to an ideal position from exposure areas occurring due to decentering of the photosensitive drum, spot size expansion caused by decentering of the photosensitive drum can be reduced.


Find Patent Forward Citations

Kamei, Yasuo. (2014). Image forming apparatus that forms image using multiple light emitting elements (U.S. Patent No. 8854407). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8854407

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