Surface potential control device of photoconductive member

Details Surface potential control device of photoconductive member Surface potential control device of photoconductive member

1988-07-29

1990-04-24

Grimley, A. T.

Photocopying

Contact printing

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355204, 355221, 355225, G03G 1502, G03G 2100

Patent

active

049203800

ABSTRACT:
When a photoreceptor provided in an image forming apparatus is electrified for image formation, the output of a charger starts with a different value from a predetermined value and it is controlled to gradually match up to the predetermined value. It is also controlled in a way to start with a lower value than a predetermined value corresponding to the time a charger suspended its operation and gradually match up to the predetermined time. Such control is carried out by controlling grid voltage which flows into grid electrode disposed between a photoreceptor and wire electrode provided for discharging.

REFERENCES:
patent: 3604925 (1971-12-01), Snelling
patent: 4019102 (1977-04-01), Wallot
patent: 4290690 (1981-09-01), Noda et al.
patent: 4353970 (1982-10-01), Dryczynski et al.
patent: 4480909 (1984-11-01), Tsuchiya
patent: 4512652 (1985-04-01), Buck et al.
patent: 4757345 (1988-07-01), Ohashi et al.

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