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:
Aug. 05, 2014
Filed:
Apr. 24, 2012
Takashi Harashima, Sagamihara, JP;
Hideaki Tanaka, Fussa, JP;
Katsuyuki Hirata, Toyokawa, JP;
Toru Yamaguchi, Koganei, JP;
Takaaki Kooriya, Hachioji, JP;
Takashi Harashima, Sagamihara, JP;
Hideaki Tanaka, Fussa, JP;
Katsuyuki Hirata, Toyokawa, JP;
Toru Yamaguchi, Koganei, JP;
Takaaki Kooriya, Hachioji, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
Image forming apparatus () creates a toner pattern on intermediate transfer belt () as a preprocessing of gradation correction, and calculates a cycle at which density unevenness is largest. Then, a toner image for gradation correction is formed so as to cancel cyclic unevenness at a cycle at which the largest density unevenness occurs. As a result of this, it becomes possible to suppress the deterioration of density detection accuracy and perform a highly accurate gradation correction even if density unevenness of any cycle occurs.