发明名称 |
Image forming apparatus with charge member |
摘要 |
<p>An image forming apparatus including an image bearing member (1); a charge member (2) contacted to the image bearing member to electrically charge the image bearing member; voltage applying means (20,21) for applying to the charge member an oscillating voltage including an AC voltage component; first detecting means (26) for detecting an AC current applied to the charge member from the voltage applying means; second detecting means (23) for detecting the AC current corresponding to a peak or a neighborhood of the peak of the AC voltage; control means for effecting control such that current detected by the second detecting means is a predetermined level when the current detected by the first detecting means is within a predetermined range and such that current detected by the first detecting means is a predetermined level when the current detected by the first detecting means is outside the predetermined range.</p> |
申请公布号 |
EP1148392(A2) |
申请公布日期 |
2001.10.24 |
申请号 |
EP20010109529 |
申请日期 |
2001.04.17 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
SHIMURA, MASARU;NAKAMORI, TOMOHIRO;TAKAMI, HIROSHI;SAKAI, HIROAKI;SAITO, SEIJI |
分类号 |
G03G15/02;G03G15/00;(IPC1-7):G03G15/02 |
主分类号 |
G03G15/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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