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:
Apr. 28, 2015
Filed:
Oct. 01, 2013
Masayuki Hayashi, Osaka, JP;
Tatsuya Miyadera, Kanagawa, JP;
Motohiro Kawanabe, Osaka, JP;
Yoshinori Shirasaki, Osaka, JP;
Masatoshi Murakami, Osaka, JP;
Masayuki Hayashi, Osaka, JP;
Tatsuya Miyadera, Kanagawa, JP;
Motohiro Kawanabe, Osaka, JP;
Yoshinori Shirasaki, Osaka, JP;
Masatoshi Murakami, Osaka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
Disclosed is an image forming apparatus including, at least, an image data storage unit that stores image data; an inclination amount detection unit that detects a first inclination amount of a portion of the image data spanning from one end to the other end relative to a main scanning direction; an inclination amount storage unit that stores, when a gradient of the image data changes at a point in the main scanning direction, a second inclination amount of a portion of the image data spanning from the one end to the point or from the other end to the point; a correction amount calculation unit that calculates correction amounts associated with the main scanning direction by switching, at the point, whether the first inclination amount is increased or decreased by the second inclination amount; and an image correction unit that corrects an image based on the correction amounts.