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:
Aug. 02, 2016
Filed:
May. 04, 2015
Takamasa Hase, Shizuoka, 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;
Takeshi Uchitani, Kanagawa, JP;
Shuutaroh Yuasa, Kanagawa, JP;
Masaaki Yoshikawa, Tokyo, JP;
Hiroshi Yoshinaga, Chiba, JP;
Hiromasa Takagi, Tokyo, JP;
Naoki Iwaya, Tokyo, JP;
Takahiro Imada, Kanagawa, JP;
Hajime Gotoh, Kanagawa, JP;
Takuya Seshita, Kanagawa, JP;
Ryota Yamashina, Kanagawa, JP;
Yasunori Ishigaya, Kanagawa, JP;
Takamasa Hase, Shizuoka, 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;
Takeshi Uchitani, Kanagawa, JP;
Shuutaroh Yuasa, Kanagawa, JP;
Masaaki Yoshikawa, Tokyo, JP;
Hiroshi Yoshinaga, Chiba, JP;
Hiromasa Takagi, Tokyo, JP;
Naoki Iwaya, Tokyo, JP;
Takahiro Imada, Kanagawa, JP;
Hajime Gotoh, Kanagawa, JP;
Takuya Seshita, Kanagawa, JP;
Ryota Yamashina, Kanagawa, JP;
Yasunori Ishigaya, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
According to an embodiment, provided is a fixing device that includes: a rotatable fixing member that heats a recording medium on a side carrying an unfixed image; a rotatable pressing member that is pressed and is contacted with the fixing member to form a nip portion between the pressing member and the fixing member; a heat source heating the fixing member; a relay switch provided in an energizing path for the heat source; a temperature detection sensor detecting a temperature of the fixing member; and a control unit that controls energization of the heat source according to the temperature detected by the temperature detection sensor. The control unit keeps the relay switch in an off state if the temperature of the fixing member is equal to or more than a predetermined temperature when the fixing member has stopped rotation.