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:
Oct. 07, 2014

Filed:

Jan. 31, 2013
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Nobuhiko Zaima, Kashiwa, JP;

Tomohisa Itagaki, Abiko, JP;

Takahiro Ishihara, Maebashi, JP;

Yasuhito Shirafuji, Kashiwa, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/47 (2006.01); B41J 2/435 (2006.01); G03G 15/00 (2006.01); G03G 13/04 (2006.01); G03G 15/043 (2006.01);
U.S. Cl.
CPC ...
G03G 13/04 (2013.01); G03G 15/5025 (2013.01); G03G 15/043 (2013.01);
Abstract

An image forming apparatus includes; an exposure unit configured to perform, based on the image data, first exposure for a photosensitive member and second exposure for the photosensitive member exposed by the first exposure; a determination unit configured to determine a type of the image to be formed based on image data; and a control unit configured to control the exposure unit such that a difference in an exposure amount between the first exposure and the second exposure performed based on the image data when the type of the image is a character is larger than the difference in the exposure amount between the first exposure and the second exposure performed based on the image data when the type of the image is a picture.


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