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. 13, 2012
Filed:
Aug. 11, 2010
Yujiro Nomura, Nagano, JP;
Yoshihisa Saka, Nagano, JP;
Yujiro Nomura, Nagano, JP;
Yoshihisa Saka, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An image forming apparatus including: an image carrier that has a belt-like shape and carries an image; an image forming section that forms the image on the image carrier; a driving roller around which the image carrier is looped, the driving roller being rotationally driven by a first driving source to drive the image carrier; a roller around which the image carrier is looped; a transfer roller having a partially hollow peripheral surface and being rotationally driven by a second driving source, the transfer roller abutting on the image carrier to form a transfer nip at a position at which the image carrier is looped around the roller; a first tension roller that abuts on the image carrier between a position of the driving roller and a position of the roller to adjust a tensile force of the image carrier; and a second tension roller that abuts on the image carrier to adjust a tensile force of the image carrier, the second tension roller abutting on the image carrier on an abutting position opposite to that of the first tension roller so as to interpose the transfer nip between the first and second tension rollers.