发明名称 |
Degradation compensation of photoreceptor sensitivity for electrophotographic copying machine |
摘要 |
An electrophotographic copying machine is provided having a photoreceptor, a corona discharger, a lamp, and a compensation circuit. The corona discharger is activated to provide a corona discharge toward the photoreceptor to uniformly and initially charge the surface of the photoreceptor. The lamp is illuminated at the same time as the corona discharge of the corona discharger to improve the charging on the photoreceptor. The compensation circuit is activated to provide an exponential voltage to be applied to the lamp in proportion to the sensitivity degradation of the photoreceptor, to thereby compensate the sensitivity degradation of the photoreceptor.
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申请公布号 |
US4542981(A) |
申请公布日期 |
1985.09.24 |
申请号 |
US19840587112 |
申请日期 |
1984.03.07 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
ANZAI, SHUNJU;IMANAKA, YOSHIAKI |
分类号 |
G03G15/00;G03G15/02;G03G15/04;G03G15/05;G03G21/00;G03G21/08;(IPC1-7):G03G15/00;G03G15/06 |
主分类号 |
G03G15/00 |
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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