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:
Jul. 12, 2016

Filed:

Apr. 03, 2013
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Takashi Sekiguchi, Yokohama, JP;

Shinri Watanabe, Mishima, JP;

Takeshi Shimba, Kawasaki, JP;

Ken Nakagawa, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 15/01 (2006.01);
U.S. Cl.
CPC ...
G03G 15/5041 (2013.01); G03G 15/0189 (2013.01); G03G 15/5058 (2013.01); G03G 2215/0161 (2013.01); G03G 2215/0164 (2013.01);
Abstract

An image forming apparatus includes: an image forming unit configured to form, on an image carrier, a first correction pattern including developer images of a plurality of colors, and a second correction pattern including developer images of the plurality of colors; a registration correction unit configured to perform registration correction control based on a detection result of the developer images of the first correction pattern; and a density correction unit configured to perform density correction control based on a detection result of the second correction pattern. The density correction unit is further configured to decide a detection result of the developer image of at least one color of the second correction pattern used for the density correction control based on a detection result of the developer image of the first correction pattern.


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