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:
Mar. 27, 2012
Filed:
Mar. 17, 2010
Applicants:
Shinichi Tanaka, Shiojiri, JP;
Satoshi Chiba, Suwa, JP;
Koichi Kamijo, Matsumoto, JP;
Inventors:
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/01 (2006.01); G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image forming apparatus includes: a transfer belt to which an image is transferred; a belt tension roller around which the transfer belt is looped; a transfer roller that includes a shaft and a recessed portion which is formed in an axial direction of the transfer roller and has a first edge formed in an opening edge in one side of a rotation direction of the transfer roller and a second edge formed in an opening edge in the other side opposite to the one side; and a support member that is arranged in the shaft of the transfer roller.