发明授权
US07390995B2 Image forming apparatus, fixing device and image heater having an adjustable exciting member
失效
图像形成装置，定影装置和具有可调激励部件的图像加热器
- 专利标题： Image forming apparatus, fixing device and image heater having an adjustable exciting member
- 专利标题（中）： 图像形成装置，定影装置和具有可调激励部件的图像加热器
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申请号： US11444412申请日： 2006-06-01
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公开(公告)号： US07390995B2公开(公告)日： 2008-06-24
- 发明人: Motokazu Hasegawa , Norihiko Aze
- 申请人： Motokazu Hasegawa , Norihiko Aze
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Limited
- 当前专利权人： Ricoh Company, Limited
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP2005-161908 20050601
- 主分类号： H05B6/14
- IPC分类号： H05B6/14 ; G03G15/20
摘要：
An image forming apparatus includes a fixing device which fixes a toner image on a recording medium. The fixing device includes a heating device. The heating device includes a heat-generating member, an exciting member, and a changing device. The heat-generating member is subjected to electromagnetic induction heating. The exciting member is placed to sandwich a front surface and a rear surface of the heat-generating member, without contacting the heat-generating member. The changing device changes an opposing distance of the exciting member to at least one of the front surface and the rear surface of the heat-generating member.