Charging apparatus

Details Charging apparatus Charging apparatus

1998-11-06

2000-01-11

Moses, Richard

Electrophotography

Control of electrophotography process

Control of charging

399176, 361221, 361225, G03G 1502

Patent

active

060145293

ABSTRACT:
A charging apparatus includes a rotatable charging roller contactable to a member to be charged to electrically charge the member to be charged. The eharging roller includes a foam member and is supplied with a voltage including an oscillating component. A control means is provided for constant-current-control of the oscillating component. When the constant-current-control is carried out, a response time of the constant-current-control is longer than time required for a width to be charged to pass through a discharge area between the charging roller and the member to be charged.

REFERENCES:
patent: 5420671 (1995-05-01), Kisu et al.
patent: 5646717 (1997-07-01), Hiroshima et al.
patent: 5701551 (1997-12-01), Honda et al.

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