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： US13286796申请日： 2011-11-01
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公开(公告)号： US08655211B2公开(公告)日： 2014-02-18
- 发明人: Ippei Fujimoto , Yuji Arai , Hiromasa Takagi , Yoshiki Yamaguchi , Naoki Iwaya , Arinobu Yoshiura , Toshihiko Shimokawa , Tetsuo Tokuda , Yutaka Ikebuchi , Kenji Ishii , Takahiro Imada , Hiroshi Yoshinaga , Takuya Seshita , Hajime Gotoh , Masaaki Yoshikawa
- 申请人： Ippei Fujimoto , Yuji Arai , Hiromasa Takagi , Yoshiki Yamaguchi , Naoki Iwaya , Arinobu Yoshiura , Toshihiko Shimokawa , Tetsuo Tokuda , Yutaka Ikebuchi , Kenji Ishii , Takahiro Imada , Hiroshi Yoshinaga , Takuya Seshita , Hajime Gotoh , Masaaki Yoshikawa
- 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： JP2010-251000 20101109
- 主分类号： G03G15/20
- IPC分类号： G03G15/20
摘要：
A fixing device includes a fixing belt; a pressing rotary body disposed outside a loop formed by the fixing belt; a nip formation pad disposed inside the loop formed by the fixing belt and pressed against the pressing rotary body via the fixing belt to form a fixing nip between the pressing rotary body and the fixing belt through which a recording medium bearing a toner image is conveyed. The nip formation pad includes a protrusion disposed downstream from the fixing nip in a conveyance direction of the recording medium and protruding toward the pressing rotary body without contacting the pressing rotary body. The fixing device further includes a pressing rotary body mover to contact and move the pressing rotary body bidirectionally in the conveyance direction of the recording medium to move the fixing nip toward and away from the protrusion.
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