- 专利标题： Fixing device including a pressure pad with at least one mouth, and image forming apparatus incorporating same
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申请号： US15447709申请日： 2017-03-02
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公开(公告)号： US10025247B2公开(公告)日： 2018-07-17
- 发明人: Kazunari Sawada , Ippei Fujimoto , Kenji Ishii , Takashi Seto , Takayuki Seki , Hiroshi Yoshinaga , Ryohei Matsuda
- 申请人： Kazunari Sawada , Ippei Fujimoto , Kenji Ishii , Takashi Seto , Takayuki Seki , Hiroshi Yoshinaga , Ryohei Matsuda
- 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： JP2016-048112 20160311; JP2017-008283 20170120; JP2017-026752 20170216
- 主分类号： G03G15/20
- IPC分类号： G03G15/20
摘要：
A fixing device includes fixing rotator, a heater to heat the fixing rotator, a pressure rotator disposed opposite an outer circumferential surface of the fixing rotator, a pressure pad disposed opposite an inner circumferential surface of the fixing rotator, a support to support the pressure pad, and a thermal conduction aid to conduct heat in an axial direction of the fixing rotator. The pressure pad presses against the pressure rotator via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. The pressure pad includes a nip-side face disposed opposite the inner circumferential surface of the fixing rotator. The thermal conduction aid covers the nip-side face of the pressure pad. The nip-side face of the pressure pad includes at least one mouth therein defining a non-contact area in which the pressure pad does not contact the thermal conduction aid.