Image forming apparatus and charging device thereof

Details Image forming apparatus and charging device thereof Image forming apparatus and charging device thereof

1994-03-21

1995-12-26

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355274, 355296, G03G 1500

Patent

active

054792436

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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