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. 16, 2014
Filed:
Dec. 05, 2012
Hideaki Tanaka, Tokyo, JP;
Takashi Harashima, Tokyo, JP;
Katsuyuki Hirata, Tokyo, JP;
Daiki Yamanaka, Tokyo, JP;
Kazuhiro Saito, Tokyo, JP;
Hideaki Tanaka, Tokyo, JP;
Takashi Harashima, Tokyo, JP;
Katsuyuki Hirata, Tokyo, JP;
Daiki Yamanaka, Tokyo, JP;
Kazuhiro Saito, Tokyo, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
An image forming apparatus and a gradation correction method for the same are provided. An image forming apparatus includes an image forming section that forms a plurality of patch bands in a plurality of positions in a main scanning direction on an image bearing member, each of the plurality of patch bands having a plurality of gradation patches disposed in a sub-scanning direction; a density detection section that detects densities of the plurality of patch bands; and a control section that performs gradation correction based on detection results from the density detection section. The plurality of patch bands differs from each other.