发明授权
- 专利标题: Fixing device and image forming apparatus including same
- 专利标题(中): 固定装置及其成像装置
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申请号: US14152057申请日: 2014-01-10
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公开(公告)号: US09280107B2公开(公告)日: 2016-03-08
- 发明人: Motokazu Hasegawa , Yukari Isoe , Susumu Matsusaka
- 申请人: Motokazu Hasegawa , Yukari Isoe , Susumu Matsusaka
- 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: JP2013-008252 20130121
- 主分类号: G03G15/20
- IPC分类号: G03G15/20
摘要:
A fixing device includes a rotary fixing member; a pressure roller pressed against the fixing member to form a nip in association with the fixing member; and an induction heater, as a heat source, to heat the fixing member. The induction heater includes an excitation coil to induction-heat the fixing member; a side core disposed along an outer circumference in a longitudinal direction of the excitation coil; and a plurality of arch-shaped cores disposed to cover the excitation coil in the longitudinal direction thereof. The arch-shaped cores include center portions corresponding to an inner side of the excitation coil and bent to the fixing member; and outer end portions extending in the direction leading to the side core without interfering with the excitation coil.
公开/授权文献
- US20140205333A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME 公开/授权日:2014-07-24