发明授权
- 专利标题： Image forming apparatus including means for controlling the flight of toner or visualizing particles in accordance with an image signal
- 专利标题（中）： 图像形成装置包括根据图像信号控制调色剂或可视化颗粒的飞行的装置
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申请号： US715514申请日： 1996-09-18
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公开(公告)号： US5825384A公开(公告)日： 1998-10-20
- 发明人: Hirokazu Fujita
- 申请人： Hirokazu Fujita
- 申请人地址： JPX Osaka
- 专利权人： Sharp Kabushiki Kaisha
- 当前专利权人： Sharp Kabushiki Kaisha
- 当前专利权人地址： JPX Osaka
- 优先权： JPX7-244790 19950922; JPX7-244803 19950922
- 主分类号： B41J2/415
- IPC分类号： B41J2/415 ; G03G15/34 ; B41J2/06 ; G03G15/06 ; G03G15/08
摘要：
An image forming apparatus of the present invention includes a toner carrier, a counter electrode, and a control electrode, which have the same potential as a ground potential of the image forming apparatus during a non-operational period while a flight electric field-use operational voltage and control voltages are not applied. During an operational period while the operational voltage and the control voltages are applied, a flight suppressing voltage for suppressing flight of the toner in the control voltages is first applied to the control voltage, and thereafter the operational voltage is applied to the counter electrode. When the application of the operational voltage and the control voltage are suspended, the flight suppressing voltage is first applied as the control voltage, then the application of the operational voltage is suspended, and thereafter the application of the flight suppressing voltage is suspended. With the control thus carried out, the flight of unnecessary toner is suppressed, thereby ensuring that images of high quality are obtained.
公开/授权文献
- US5118832A Process for the preparation of alkyl 3-chloroanthranilates 公开/授权日：1992-06-02