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:
Jul. 25, 2017

Filed:

Dec. 11, 2015
Applicant:

Ricoh Company, Ltd., Tokyo, JP;

Inventors:

Takeshi Uchitani, Kanagawa, JP;

Masahiko Satoh, Tokyo, JP;

Kenji Ishii, Kanagawa, JP;

Tadashi Ogawa, Tokyo, JP;

Teppei Kawata, Kanagawa, JP;

Arinobu Yoshiura, Kanagawa, JP;

Toshihiko Shimokawa, Kanagawa, JP;

Kensuke Yamaji, Kanagawa, JP;

Takamasa Hase, Shizuoka, JP;

Shuutaroh Yuasa, Kanagawa, JP;

Masaaki Yoshikawa, Tokyo, JP;

Hiromasa Takagi, Tokyo, JP;

Takahiro Imada, Kanagawa, JP;

Hajime Gotoh, Kanagawa, JP;

Akira Suzuki, Tokyo, JP;

Takuya Seshita, Kanagawa, JP;

Hiroshi Yoshinaga, Chiba, JP;

Kazuya Saito, Kanagawa, JP;

Shinichi Namekata, Kanagawa, JP;

Takayuki Seki, Kanagawa, JP;

Yuji Arai, Kanagawa, JP;

Ryuuichi Mimbu, Kanagawa, JP;

Yoshiki Yamaguchi, Kanagawa, JP;

Shuntaroh Tamaki, Kanagawa, JP;

Yutaka Ikebuchi, Kanagawa, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
G03G 15/2064 (2013.01); G03G 15/205 (2013.01); G03G 15/2039 (2013.01); G03G 15/2078 (2013.01); G03G 2215/2035 (2013.01);
Abstract

A fixing device includes a heat source; a fixing member looped into a generally cylindrical shape to rotate in a circumferential direction thereof and partially heated by the heat source and to heat a surface of a recording medium bearing an unfixed toner image to fix the unfixed toner image thereon in a fixing process; a rotary pressing member disposed facing the fixing member to form a nip therebetween, through which the recording medium is transported in a transport direction; and a rotation driver to rotate one of the fixing member and the pressing member. In a case in which the fixing member is halted for a reason other than the fixing process while power of the fixing device is on, electric power is not supplied to the heat source and the fixing member is rotated by a predetermined amount or more after the fixing member is halted.


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