发明授权
US08131198B2 Image forming apparatus, fixing unit, and image forming method with improved heating mechanism
失效
图像形成装置，定影单元和具有改进的加热机构的图像形成方法
- 专利标题： Image forming apparatus, fixing unit, and image forming method with improved heating mechanism
- 专利标题（中）： 图像形成装置，定影单元和具有改进的加热机构的图像形成方法
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申请号： US11485395申请日： 2006-07-13
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公开(公告)号： US08131198B2公开(公告)日： 2012-03-06
- 发明人: Kenji Ishii , Keizo Yasuda , Akiyasu Amita , Kenichi Hasegawa , Yasuhiro Kohira , Yasutada Tsukioka , Masaya Shitami , Satoshi Ueno
- 申请人： Kenji Ishii , Keizo Yasuda , Akiyasu Amita , Kenichi Hasegawa , Yasuhiro Kohira , Yasutada Tsukioka , Masaya Shitami , Satoshi Ueno
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Co., Ltd.
- 当前专利权人： Ricoh Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Harness, Dickey & Pierce PLC
- 优先权： JP2005-207838 20050715
- 主分类号： G03G15/20
- IPC分类号： G03G15/20
摘要：
An image forming apparatus includes an image forming mechanism to form a toner image on a recording medium according to image data and a fixing mechanism to fix the toner image on the recording medium. The fixing mechanism includes a fixing member and an external heater. The fixing member applies heat to the recording medium having the toner image. The external heater heats the fixing member and is formed in a shape corresponding to a surface of the fixing member. The external heater is disposed as if to engage and yet be spaced apart from the fixing member by a distance which is variable according to movement of the external heater.
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