Image forming apparatus utilizing discharge current of charger

Details Image forming apparatus utilizing discharge current of charger Image forming apparatus utilizing discharge current of charger

1995-06-30

1997-09-09

Royer, William J.

Electrophotography

Control of electrophotography process

Control of charging

399 55, G03G 1502, G03G 1506

Patent

active

056665911

ABSTRACT:
An image forming apparatus having a voltage generating circuit for generating a bias voltage which is supplied to a developing unit upon reception of a discharge voltage from the charger, for charging a photosensitive drum, based on the discharge voltage. The voltage generating circuit is controlled by a timing signal supplied from the CPU, so that the bias voltage is applied to the developing unit when the photosensitive drum rotates by a predetermined angle and is set at a position where development is carried out.

REFERENCES:
patent: 5309207 (1994-05-01), Omori

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