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.:
Date of Patent:
Jan. 01, 2019
Filed:
Jun. 21, 2017
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Akihiko Uchiyama, Mishima, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/01 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0178 (2013.01); G03G 15/5008 (2013.01); G03G 15/5041 (2013.01);
Abstract
An image forming apparatus includes a CPU configured to change a parameter value used to control a developer bearing amount and form a plurality of patches for different parameter values changed, and a color sensor configured to measure the plurality of patches thereby acquiring color information thereof. The CPU detects, from values of color information of the plurality of patches, a value of the color information at which a change greater than or equal to a predetermined threshold value occurs, and the CPU sets a parameter used in forming an image based on the detected value of color information.