发明授权
US07346305B2 Sheet wrapping avoidable fixing apparatus and image forming apparatus
有权
片材包装可避免的定影装置和图像形成装置
- 专利标题: Sheet wrapping avoidable fixing apparatus and image forming apparatus
- 专利标题(中): 片材包装可避免的定影装置和图像形成装置
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申请号: US11557238申请日: 2006-11-07
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公开(公告)号: US07346305B2公开(公告)日: 2008-03-18
- 发明人: Hisashi Kikuchi , Shigeo Kurotaka , Kiyoshi Ohshima , Takashi Fujita , Toshihiko Baba , Atsushi Nakafuji , Hirokazu Ikenoue , Jun Yura , Katsuhiro Echigo , Hideki Kosugi
- 申请人: Hisashi Kikuchi , Shigeo Kurotaka , Kiyoshi Ohshima , Takashi Fujita , Toshihiko Baba , Atsushi Nakafuji , Hirokazu Ikenoue , Jun Yura , Katsuhiro Echigo , Hideki Kosugi
- 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, P.C.
- 优先权: JP2001-167346 20010601; JP2001-222186 20010723; JP2001-261814 20010830
- 主分类号: G03G15/20
- IPC分类号: G03G15/20
摘要:
A fixing apparatus includes a fixing member to be heated and a pressure-contacting member for pressure contacting the fixing member. The fixing apparatus directs and conveys a recording member through a nip formed between the fixing member and pressure applying member in such a manner that a toner image carried on a recording member contacts the fixing member in order to be fixed thereto with heat and pressure. The fixing apparatus is configured to direct a tip margin of the recording member toward the pressure applying member across a virtual linear extension line drawn from a downstream end to upstream end of the nip when only the tip margin exits from the nip. A fixing member side separation device may be separately provided from the surface of the fixing apparatus so as to separate the recording member exiting from the nip. A gap formed between the downstream end of the nip and the tip of the fixing member side separation device is set smaller than the width of the tip margin.
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