Corona discharging device

Details Corona discharging device Corona discharging device

1989-04-19

1990-10-09

Berman, Jack I.

Radiant energy

Corona irradiation

250326, 250325, 361229, H01T 1900

Patent

active

049623079

ABSTRACT:
A corona discharging device for an electrophotographic copier, laser printer or similar image forming equipment of the type using an electrophotographic procedure. The device has a corona wire, a rear electrode, and a dielectric plate intervening between the corona wire and the rear electrode. A pulse voltage is applied across the corona wire and rear electrode, while a DC bias voltage is applied across the corona wire and a photoconductive element which is located in close proximity to the corona discharging device. A current for charging the photoconductive element is controlled to a predetermined constant value. When the charging current is lowered below a predetermined value or when the DC bias voltage is increased above a predetermined value or decreased below a predetermined value, a high-tension power supply stops feeding a high voltage by deciding that an output is open or short-circuited.

REFERENCES:
patent: 3742237 (1973-06-01), Barker
patent: 3961193 (1976-06-01), Hudson
patent: 4339783 (1982-07-01), Kinashi et al.
patent: 4446371 (1984-05-01), Cobb
patent: 4456825 (1984-06-01), Kuge et al.
patent: 4672505 (1987-06-01), Tsuchiya
patent: 4700261 (1987-10-01), Nagase et al.
patent: 4709298 (1987-11-01), Hosono et al.
patent: 4783716 (1988-11-01), Nagase et al.

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