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： US12857953申请日： 2010-08-17
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公开(公告)号： US08401414B2公开(公告)日： 2013-03-19
- 发明人: Masaaki Yoshikawa , Yoshiki Yamaguchi , Toshihiko Shimokawa , Kenji Ishii , Naoki Iwaya , Takahiro Imada , Yutaka Ikebuchi , Takamasa Hase , Tetsuo Tokuda , Hiroshi Yoshinaga , Kenichi Hasegawa , Ippei Fujimoto , Akira Shinshi
- 申请人： Masaaki Yoshikawa , Yoshiki Yamaguchi , Toshihiko Shimokawa , Kenji Ishii , Naoki Iwaya , Takahiro Imada , Yutaka Ikebuchi , Takamasa Hase , Tetsuo Tokuda , Hiroshi Yoshinaga , Kenichi Hasegawa , Ippei Fujimoto , Akira Shinshi
- 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： JP2009-203497 20090903; JP2010-107357 20100507
- 主分类号： G03G15/20
- IPC分类号： G03G15/20
摘要：
In a fixing device, a pressing member rotates in a predetermined direction of rotation. A flexible endless fixing member rotates in accordance with rotation of the pressing member. A nip formation member is provided inside a loop formed by the fixing member and pressed against the pressing member via the fixing member to form a nip between the fixing member and the pressing member through which a recording medium bearing a toner image passes. A first heat generator faces an inner circumferential surface of the fixing member at a position other than the nip to heat the fixing member. A second heat generator faces the inner circumferential surface of the fixing member at a position other than the nip to heat the fixing member, and is disposed adjacent to the first heat generator along the inner circumferential surface of the fixing member.