Corona discharging unit for use in copying machine

Details Corona discharging unit for use in copying machine Corona discharging unit for use in copying machine

1988-01-25

1989-05-30

Moses, R. L.

Photocopying

Contact printing

Light boxes

355274, 355276, 355315, G03G 1502

Patent

active

048355712

ABSTRACT:
A corona discharging unit comprises a control grid to which a diode is attached and a high voltage AC power is applied to its discharge line. A single unit of this design with a single power source, when used in an electrophotographic copying machine with a rotating photosensitive drum, can perform more than one of the functions required in a copying process such as preliminary charging of the drum, transferring images, discharging and cleaning.

REFERENCES:
patent: 4141648 (1979-02-01), Gaitten et al.
patent: 4183653 (1980-01-01), Satomi et al.
patent: 4400081 (1983-08-01), Yamashita et al.
patent: 4408865 (1983-10-01), Camis et al.

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