发明授权
US5776544A Charging device and an image forming apparatus using a charging device
失效
充电装置和使用充电装置的图像形成装置
- 专利标题： Charging device and an image forming apparatus using a charging device
- 专利标题（中）： 充电装置和使用充电装置的图像形成装置
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申请号： US608527申请日： 1996-02-28
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公开(公告)号： US5776544A公开(公告)日： 1998-07-07
- 发明人: Teruyuki Naka , Yoshio Umeda , Toshiki Yamamura , Akira Kumon , Seiichi Suzuki , Junichi Nawama , Hisanori Nagase
- 申请人： Teruyuki Naka , Yoshio Umeda , Toshiki Yamamura , Akira Kumon , Seiichi Suzuki , Junichi Nawama , Hisanori Nagase
- 申请人地址： JPX Osaka
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX5-336370 19931228; JPX6-147003 19940607; JPX6-281543 19941021; JPX6-299347 19941202
- 主分类号： G03G15/02
- IPC分类号： G03G15/02 ; B05D3/15
摘要：
A charging device for charging a movable object to be charged. A charging member contacts the object to be charged. A power source applies a voltage to the charging member, wherein the power spectrum PS satisfies the following relation when the space frequency of the profile of the surface of the charging member is analyzed. In the section of 10.ltoreq.f.ltoreq.100 (cycles/mm): PS.ltoreq.-2.5.times.log(f/2)(.mu.m.sup.2) In this way, the charging device prevents charge unevenness due to undulations on the surface of the charging member and charges uniformly while generating very little ozone.
公开/授权文献
- US5067928A Coin and/or token operated and handling apparatus 公开/授权日：1991-11-26
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