发明授权
- 专利标题： Fixing device and image forming apparatus incorporating same
- 专利标题（中）： 固定装置和包含其的图像形成装置
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申请号： US13293794申请日： 2011-11-10
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公开(公告)号： US08676103B2公开(公告)日： 2014-03-18
- 发明人: Masaaki Yoshikawa , Yuji Arai , Hiromasa Takagi , Yoshiki Yamaguchi , Arinobu Yoshiura , Toshihiko Shimokawa , Tetsuo Tokuda , Yutaka Ikebuchi , Kenji Ishii , Naoki Iwaya , Takahiro Imada , Hiroshi Yoshinaga , Takuya Seshita , Hajime Gotoh , Ippei Fujimoto
- 申请人： Masaaki Yoshikawa , Yuji Arai , Hiromasa Takagi , Yoshiki Yamaguchi , Arinobu Yoshiura , Toshihiko Shimokawa , Tetsuo Tokuda , Yutaka Ikebuchi , Kenji Ishii , Naoki Iwaya , Takahiro Imada , Hiroshi Yoshinaga , Takuya Seshita , Hajime Gotoh , Ippei Fujimoto
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2010-253983 20101112; JP2010-280118 20101216
- 主分类号： G03G15/20
- IPC分类号： G03G15/20
摘要：
A fixing device includes a tubular belt holder, a rotatable, flexible fuser belt, a heater, a fuser pad, and a pressure member. The belt holder extends in an axial direction. The fuser belt is looped around the belt holder to rotate in a circumferential direction of the belt holder. The heater is disposed adjacent to the belt holder to heat the belt holder. The fuser pad is accommodated in the belt holder inside the loop of the fuser belt. The pressure member is disposed opposite the belt holder with the fuser belt interposed between the fuser pad and the pressure member. The pressure member presses in a load direction against the fuser pad through the fuser belt to form a fixing nip therebetween. The belt holder includes, along a circumferential dimension thereof, an upstream, first circumferential portion, a downstream, second circumferential portion, and a midstream, third circumferential portion.
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