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:
Sep. 25, 2007
Filed:
Feb. 11, 2003
Applicant:
Nobuatsu Sasanuma, Chiba, JP;
Inventor:
Nobuatsu Sasanuma, Chiba, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/00 (2006.01); G06F 3/08 (2006.01); G06K 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In an image forming apparatus which forms a color image by superposing cyan, magenta, yellow and black toners on a recording medium, a circuit to limit image signals is provided immediately before a gamma correction circuit which corrects an output characteristic inherent in the apparatus so that the sum total of the signal levels of the image signals of the respective colors does not exceeds a predetermined value. Thus, even if a user arbitrarily sets color profile data for color management, a toner spread amount can be controlled not to exceed the predetermined value.