- 专利标题: Fixing device with nip forming member having a high thermal-conductive layer with a low thermal conductive portion
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申请号: US14657656申请日: 2015-03-13
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公开(公告)号: US09599940B2公开(公告)日: 2017-03-21
- 发明人: Motoyoshi Yamano , Kohichi Utsunomiya , Hiromasa Takagi , Kenji Ishii , Takayuki Seki , Keitaro Shoji , Hideo Nagafuji , Yuji Arai , Arinobu Yoshiura , Shohei Saito , Qifeng Cui , Yutaka Ikebuchi
- 申请人: Motoyoshi Yamano , Kohichi Utsunomiya , Hiromasa Takagi , Kenji Ishii , Takayuki Seki , Keitaro Shoji , Hideo Nagafuji , Yuji Arai , Arinobu Yoshiura , Shohei Saito , Qifeng Cui , Yutaka Ikebuchi
- 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, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JP2014-053225 20140317; JP2014-093882 20140430
- 主分类号: G03G15/20
- IPC分类号: G03G15/20
摘要:
A fixing device includes: a fixing member that is rotatable and in an endless shape; a heat source that heats the fixing member; a nip forming member that is arranged inside the fixing member; and a pressurizing member that is pressurized to be in contact with the nip forming member through the fixing member, to form a fixing nip. The fixing device fixes an unfixed image on a recording medium by passing the recording medium that carries the unfixed image through the fixing nip. The nip forming member includes a base layer, and a high thermal-conductive layer that is arranged on a surface layer of the base layer on a fixing nip side, and that has higher thermal conductivity than the base layer, and in the high thermal-conductive layer, a low thermal-conductive portion is arranged near an end portion in an axial direction of the fixing member.
公开/授权文献
- US20150261157A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 公开/授权日:2015-09-17