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:
May. 08, 2012
Filed:
Sep. 02, 2009
Seiji Shiraki, Saitama, JP;
Yasuo Komatsu, Saitama, JP;
Kiyoshi Une, Saitama, JP;
Takumi Nishikata, Saitama, JP;
Seiji Shiraki, Saitama, JP;
Yasuo Komatsu, Saitama, JP;
Kiyoshi Une, Saitama, JP;
Takumi Nishikata, Saitama, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes: print data generating unit for generating gradation correction test chart print data to juxtapose and draw a basis density pattern having a basis density of a yellow color and plural reference density patterns having respective densities of the yellow color compared with the basis density and additionally draw a contrast effect pattern composed of colors having a contrast effect on the yellow color; printing unit for printing a gradation correction test chart including a yellow color gradation correction pattern in which the basis density pattern and the plurality of reference density patterns are juxtaposed and printed and the contrast effect pattern is additionally printed; receiving unit for receiving an input of a density adjustment value of any pattern based on a shading comparison of the basis density pattern and the reference density patterns; and gradation correcting unit for performing a gradation correction.