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:
Nov. 30, 2010
Filed:
Dec. 19, 2007
Makoto Higashiyama, Kanagawa, JP;
Yoshiaki Kawai, Kanagawa, JP;
Shingo Nishizaki, Kanagawa, JP;
Tomohide Kondoh, Kanagawa, JP;
Masashi Suzuki, Saitama, JP;
Makoto Higashiyama, Kanagawa, JP;
Yoshiaki Kawai, Kanagawa, JP;
Shingo Nishizaki, Kanagawa, JP;
Tomohide Kondoh, Kanagawa, JP;
Masashi Suzuki, Saitama, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A pattern generating unit generates correction patterns on a transfer belt. Detection sensors detect the correction patterns, and amounts of magnification correction, amounts of misregistration in the main- and the sub-scanning direction are calculated. The amount of skew between each of colors is then calculated, and a position where an image is divided and a direction for shifting a divided image are determined. Possible dividing-positions are also determined, and a calculated dividing position and each of the possible dividing positions are compared with one another. Then, a possible dividing position closest to the calculated dividing position is set as an actual dividing position.