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. 12, 1996
Filed:
Oct. 13, 1995
Noritaka Okazaki, Osaka, JP;
Ryuji Wataki, Osaka, JP;
Michio Uchida, Osaka, JP;
Shigeo Fujita, Osaka, JP;
Yuzuru Nanjo, Osaka, JP;
Mita Industrial Co., Ltd., Osaka, JP;
Abstract
A transfer device for an image forming machine has a driving roller, a driven roller disposed at a distance from the driving roller, a transfer belt extending between the driving roller and the driven roller, a transfer roller disposed opposite an image bearing member, with the transfer belt interposed therebetween and pressing the transfer belt against the image bearing member, and a voltage source for applying a predetermined voltage onto the transfer roller. The transfer roller consists of a rotating shaft and a roller portion mounted on the rotating shaft, and the hardness of the roller portion is set to result in a compression of 0.45 to 2.00 mm at a linear pressure of 3 g/cm. The volume resistivity of the roller portion of the transfer roller is set at 10.sup.2 to 10.sup.9 ohm-centimeters.