Electrophotography – Image formation – Charging
Patent
1997-06-17
1999-03-09
McCamish, Marion
Electrophotography
Image formation
Charging
399168, 399338, 399101, 430 45, 430109, 430110, 361225, 428364, 428451, 428212, G03G 1500
Patent
active
058813446
ABSTRACT:
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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Chiba Masako
Kurokawa Junji
Nakahara Toshio
Nojima Kazuo
McCamish Marion
Ricoh & Company, Ltd.
Singh Arti R.
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