Invention Grant
US07693471B2 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
- Patent Title: Sheet wrapping avoidable fixing apparatus and image forming apparatus
- Patent Title (中): 片材包装可避免的定影装置和图像形成装置
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Application No.: US12026291Application Date: 2008-02-05
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Publication No.: US07693471B2Publication Date: 2010-04-06
- Inventor: Hisashi Kikuchi , Shigeo Kurotaka , Kiyoshi Ohshima , Takashi Fujita , Toshihiko Baba , Atsushi Nakafuji , Hirokazu Ikenoue , Jun Yura , Echigo Katsuhiro , Hideki Kosugi
- Applicant: Hisashi Kikuchi , Shigeo Kurotaka , Kiyoshi Ohshima , Takashi Fujita , Toshihiko Baba , Atsushi Nakafuji , Hirokazu Ikenoue , Jun Yura , Echigo Katsuhiro , Hideki Kosugi
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- Priority: JP2001-167346 20010601; JP2001-222186 20010723; JP2001-261814 20010830
- Main IPC: G03G15/20
- IPC: G03G15/20

Abstract:
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.
Public/Granted literature
- US20080138124A1 SHEET WRAPPING AVOIDABLE FIXING APPARATUS AND IMAGE FORMING APPARATUS Public/Granted day:2008-06-12
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