发明授权
US5398099A Image forming apparatus with bias means for preventing toner particles
from clouding optical components
失效
具有用于防止调色剂颗粒使光学部件混浊的偏压装置的图像形成装置
- 专利标题： Image forming apparatus with bias means for preventing toner particles from clouding optical components
- 专利标题（中）： 具有用于防止调色剂颗粒使光学部件混浊的偏压装置的图像形成装置
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申请号： US35954申请日： 1993-03-23
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公开(公告)号： US5398099A公开(公告)日： 1995-03-14
- 发明人: Katsuya Nagamochi , Rintaro Nakane
- 申请人： Katsuya Nagamochi , Rintaro Nakane
- 申请人地址： JPX Kawasaki
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX4-277700 19920924
- 主分类号： G03G15/00
- IPC分类号： G03G15/00 ; G03G15/04 ; G03G21/00
摘要：
An image forming apparatus includes a conductive transparent member arranged between a photoconductive drum and a laser optical system for exposing the drum. The transparent member is electrically connected to a bias voltage power supply. In reversal development, the bias voltage power supply supplies the transparent member with a voltage ranging from a charging voltage to a developing voltage so as to generate an electric field between the transparent member and the drum. In normal development, the power supply supplies the transparent member with a voltage ranging from the developing voltage to ground so as also to generate an electric field between the transparent member and the drum.
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