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:
Oct. 07, 2008
Filed:
Feb. 01, 2006
Michio Kikuchi, Kanagawa, JP;
Hitoshi Ogatsu, Kanagawa, JP;
Masahiko Kubo, Kanagawa, JP;
Shinsuke Sugi, Kanagawa, JP;
Yoshifumi Takebe, Kanagawa, JP;
Michio Kikuchi, Kanagawa, JP;
Hitoshi Ogatsu, Kanagawa, JP;
Masahiko Kubo, Kanagawa, JP;
Shinsuke Sugi, Kanagawa, JP;
Yoshifumi Takebe, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes: an image processing section for performing tone correction of an image signal; and an image output section for outputting an image in accordance with an image recording signal output, wherein the image processing section includes: a tone correction processing unit which, in accordance with an input image signal, outputs the image signal having undergone tone correction; a density calculation unit for calculating a density value at a given position in a scanning direction of a test pattern image in accordance with an image signal pertaining to the input test pattern image; and a discrimination unit for discriminating whether or not density inconsistencies having arisen at the given position in the scanning direction can be corrected by the tone correction processing unit, on the basis of the density value calculated by the density calculation unit and a predetermined threshold value.