发明授权
US06862422B2 Image forming apparatus and image forming method having pressing members for pressing a belt-like member
失效
图像形成装置和图像形成方法具有用于按压带状构件的按压构件
- 专利标题： Image forming apparatus and image forming method having pressing members for pressing a belt-like member
- 专利标题（中）： 图像形成装置和图像形成方法具有用于按压带状构件的按压构件
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申请号： US10364461申请日： 2003-02-12
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公开(公告)号： US06862422B2公开(公告)日： 2005-03-01
- 发明人: Shinji Aoki , Masashi Hiroki , Takeshi Watanabe , Masashi Takahashi
- 申请人： Shinji Aoki , Masashi Hiroki , Takeshi Watanabe , Masashi Takahashi
- 申请人地址： JP Tokyo JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba,Toshiba Tec Kabushiki Kaisha
- 当前专利权人： Kabushiki Kaisha Toshiba,Toshiba Tec Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo JP Tokyo
- 代理机构： Foley & Lardner LLP
- 主分类号： G03G15/16
- IPC分类号： G03G15/16 ; G03G15/01
摘要：
In a transfer unit of an image forming apparatus, an auxiliary transfer roller and a main transfer roller are provided relative to a photosensitive drum, with a transfer belt interposed. A low voltage for avoiding occurrence of a high electric field is applied to the auxiliary transfer roller, while a high transfer voltage for realizing sufficient transfer is applied to the main transfer roller.
公开/授权文献
- US20040156658A1 Image Forming Apparatus and Image Forming Method 公开/授权日：2004-08-12
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