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:
Feb. 05, 2008
Filed:
Nov. 22, 2005
Koji Kitazawa, Nagano-ken, JP;
Yujiro Nomura, Nagano-ken, JP;
Ken Ikuma, Nagano-ken, JP;
Kunihiro Kawada, Nagano-ken, JP;
Koji Kitazawa, Nagano-ken, JP;
Yujiro Nomura, Nagano-ken, JP;
Ken Ikuma, Nagano-ken, JP;
Kunihiro Kawada, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
Prior to the formation of registration pattern images (Step S), base information is acquired by means of a test pattern sensor detecting a surface of an intermediate transfer belt or particularly a surface of a pattern formation region thereof. A surface condition of the pattern formation region is acquired based on the base information thus acquired, while the formation of the registration pattern images is controlled based on the surface condition. In this manner, the registration pattern images are formed with an adequate consideration given to the surface condition of the pattern formation region where the registration pattern images are to be formed (Step S). Hence, the positions of the registration pattern images may be detected with high accuracies. As a result, a proper correction of color registration offset may be accomplished, assuredly preventing the occurrence of the color registration offset or degraded color tone.