发明名称 |
Image forming apparatus which maintains a temperature of a charge roller |
摘要 |
An electrophotographic image forming apparatus using a charge roller for uniformly charging the surface of a photoconductive element, or image carrier, during image formation, and a charging device having the charge roller. The charging efficiency is enhanced, and a uniform charge distribution is set up by the application of a DC voltage only. This suppresses the increase in the cost of an apparatus, the increase in power source cost, and the generation of a great amount of ozone. As a result, a charging member and a photoconductive element are prevented from being deteriorated while environmental pollution is eliminated.
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申请公布号 |
US5689770(A) |
申请公布日期 |
1997.11.18 |
申请号 |
US19950506814 |
申请日期 |
1995.07.25 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
KUROKAWA, JUNJI;NOJIMA, KAZUO;CHIBA, MASAKO;NAKAHARA, TOSHIO |
分类号 |
G03G15/00;F16C13/00;G03G15/02;G03G15/06;G03G15/16;(IPC1-7):G03G15/02 |
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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