Invention Grant
- Patent Title: Fixing device and image forming apparatus
- Patent Title (中): 固定装置和成像装置
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Application No.: US14267169Application Date: 2014-05-01
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Publication No.: US09158248B2Publication Date: 2015-10-13
- Inventor: Yuji Arai , Masaaki Yoshikawa , Takayuki Seki , Takeshi Yamamoto , Ryuuichi Mimbu , Yutaka Ikebuchi , Takuya Seshita , Shuntaro Tamaki , Hajime Gotoh , Takahiro Imada , Kazuya Saito , Toshihiko Shimokawa , Shuutaroh Yuasa , Kensuke Yamaji , Akira Suzuki , Hiroshi Yoshinaga
- Applicant: Yuji Arai , Masaaki Yoshikawa , Takayuki Seki , Takeshi Yamamoto , Ryuuichi Mimbu , Yutaka Ikebuchi , Takuya Seshita , Shuntaro Tamaki , Hajime Gotoh , Takahiro Imada , Kazuya Saito , Toshihiko Shimokawa , Shuutaroh Yuasa , Kensuke Yamaji , Akira Suzuki , Hiroshi Yoshinaga
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2013-102184 20130514
- Main IPC: G03G15/20
- IPC: G03G15/20
Abstract:
A fixing device includes a fixing rotary body and a heater disposed opposite and heating the fixing rotary body. A nip formation assembly presses against an opposed body via the fixing rotary body to form a fixing nip between the fixing rotary body and the opposed body, through which a recording medium is conveyed. A movable heat shield movable in a circumferential direction of the fixing rotary body is interposed between the heater and the fixing rotary body to shield the fixing rotary body from the heater in a variable axial span of the fixing rotary body. A stationary heat shield, interposed between the heater and the fixing rotary body to shield the fixing rotary body from the heater, is disposed outboard from a lateral edge of a heat generator of the heater in an axial direction of the fixing rotary body.
Public/Granted literature
- US20140341624A1 FIXING DEVICE AND IMAGE FORMING APPARATUS Public/Granted day:2014-11-20
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