Charging method and charging device

Details Charging method and charging device Charging method and charging device

1997-07-08

1999-03-09

Pendegrass, Joan H.

Electrophotography

Image formation

Charging

399176, 430702, 361225, G03G 1502

Patent

active

058813438

ABSTRACT:
A contact charging device, in which a contact member for charging has a surface including a contact portion to be in contact with a charge receiving member as well as a charge contributing portion having a surface resistivity (.rho.s) of 1.times.10.sup.5 .OMEGA./.quadrature. or less. A maximum distance between the contributing portion and the charge receiving member is in a range from 5 .mu.m to 60 .mu.m. Alternatively, an electric power formed of a DC component is applied to the contact member to produce a potential difference in a range from 550 v to 750 v between the applied power and a potential at the surface of the charge receiving member before being charged by the electric power.

REFERENCES:
patent: 5504561 (1996-04-01), Ikegawa et al.

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