Image forming apparatus having a transfer electrode

Details Image forming apparatus having a transfer electrode Image forming apparatus having a transfer electrode

1999-01-08

2000-10-17

Moses, Richard

Electrophotography

Image formation

Transfer

399314, 399176, 361225, G03G 1516

Patent

active

061344168

ABSTRACT:
An image forming apparatus, such as a color image forming apparatus using a transfer roller or similar transfer electrode, and a constant current power source. The transfer roller is made of a material to which ion agents are added. The constant current power source applies the electric current to the transfer electrode so as to implement an image transfer operation. An electric resistance of the material satisfies a formula log R (Va)-log R (10.times.Va).ltoreq.0.5, such that a quality of the image transfer operation is not corrupted when a relatively little amount of toner is transferred, or a relatively large amount of toner is transferred.

REFERENCES:
patent: 5438398 (1995-08-01), Tanigawa et al.
patent: 5570162 (1996-10-01), Sohmiya
patent: 5596391 (1997-01-01), Matsushita et al.
patent: 5599645 (1997-02-01), Tamiya et al.

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