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.

Date of Patent:
Nov. 25, 2014

Filed:

Jul. 05, 2012
Applicants:

Takehiro Oishi, Kanagawa, JP;

Takashi Hoshino, Kanagawa, JP;

Nobuhiro Hiroe, Kanagawa, JP;

Kiichiro Iijima, Kanagawa, JP;

Junji Hanatani, Kanagawa, JP;

Inventors:

Takehiro Oishi, Kanagawa, JP;

Takashi Hoshino, Kanagawa, JP;

Nobuhiro Hiroe, Kanagawa, JP;

Kiichiro Iijima, Kanagawa, JP;

Junji Hanatani, Kanagawa, JP;

Assignee:

Fuji Xerox., Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image forming apparatus includes an image holding member on which an image is held, and a transfer unit transferring the held image to a recording material, wherein the transfer unit includes, a transfer roll disposed to be opposite to the image holding member, forming a transfer electric field, and transferring the image to the recording material, a drive unit applying driving force to the transfer roll, a torque limiting machanics limiting an upper limit of torque which acts on the transfer roll, and an inertia member provided to increase an amount of inertia with respect to the transfer roll and moving the transfer roll with inertia in a direction in which a speed difference between the image holding member and the transfer roll is decreased when the upper limit of torque acts on the transfer roll.


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