发明授权
US5499080A Image forming apparatus having a voltage controlled contact charger
失效
具有电压控制接触充电器的图像形成装置
- 专利标题： Image forming apparatus having a voltage controlled contact charger
- 专利标题（中）： 具有电压控制接触充电器的图像形成装置
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申请号： US172108申请日： 1993-12-23
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公开(公告)号： US5499080A公开(公告)日： 1996-03-12
- 发明人: Tadashi Furuya , Junji Araya , Hideyuki Yano , Harumi Kugoh
- 申请人： Tadashi Furuya , Junji Araya , Hideyuki Yano , Harumi Kugoh
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX4-359139 19921224
- 主分类号： G03G15/02
- IPC分类号： G03G15/02 ; G03G21/00
摘要：
A charging apparatus includes a charging member for charging the member to be charged; a power source for supplying electric power to the charging member; a power source for supplying a constant small DC current to the charging member; and a device for determining a voltage to be applied to the charging member; wherein while the constant small DC current is supplied to the charging member, a voltage supplied to the charging member is detected and in response to the detected voltage, the voltage determining device determines the voltage to be applied to the charging member.
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