发明授权
- 专利标题： Belt-type fixing device and image forming apparatus using same
- 专利标题（中）： 带式定影装置和使用该固定装置的成像装置
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申请号： US12923231申请日： 2010-09-10
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公开(公告)号： US08428502B2公开(公告)日： 2013-04-23
- 发明人: Tetsuo Tokuda , Masaaki Yoshikawa , Akira Shinshi , Kenichi Hasegawa , Hiroshi Yoshinaga , Naoki Iwaya , Yoshiki Yamaguchi , Yutaka Ikebuchi , Shuntaroh Tamaki , Toshihiko Shimokawa , Ippei Fujimoto , Kenji Ishii
- 申请人： Tetsuo Tokuda , Masaaki Yoshikawa , Akira Shinshi , Kenichi Hasegawa , Hiroshi Yoshinaga , Naoki Iwaya , Yoshiki Yamaguchi , Yutaka Ikebuchi , Shuntaroh Tamaki , Toshihiko Shimokawa , Ippei Fujimoto , Kenji Ishii
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Limited
- 当前专利权人： Ricoh Company, Limited
- 当前专利权人地址： JP Tokyo
- 代理机构： Harness, Dickey & Pierce, P.L.C.
- 优先权： JP2009-209164 20090910
- 主分类号： G03G15/20
- IPC分类号： G03G15/20
摘要：
A fixing device includes an endless flexible fixing member, a supporting member having a pipe shape disposed inside a loop formed by the fixing member to support the fixing member, a pressing member disposed opposite the supporting member via the fixing member, and a nip formation member disposed opposite the pressing member via the fixing member to form a fixing nip between the fixing member and the pressing member. The fixing member contacts an outer circumferential face of the supporting member at a side opposite a side at which the fixing member contacts the nip formation member at the fixing nip. The fixing member has slack portions formed upstream and downstream from the fixing nip in a conveyance direction of a recording medium. The slack portions extend toward the pressing member over the fixing nip without contacting either the supporting member or the pressing member.
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