Charger maintaining a uniform charge in an image forming apparat

Details Charger maintaining a uniform charge in an image forming apparat Charger maintaining a uniform charge in an image forming apparat

1989-12-18

1992-12-29

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Electric charging of objects or materials

355221, 250324, G03G 1500

Patent

active

051756668

ABSTRACT:
In a charger, a plurality of rows of air openings are provided in a shield member. The rows are elongated in the longitudinal direction of stretched corona wires and each of the rows has a plurality of air openings. The air openings are arranged in such a manner that the numbers of the air openings in opposition to the same corona wire in the nearest position are the same when counted in the direction vertical to the length of the corona wire. As a result, soiled portions in the corona wires produced by air streams passing through the air openings are uniformly distributed throughout the whole length of the charger and each part of the charger has substantially the same charging power.

REFERENCES:
patent: 3978379 (1976-08-01), DelVecchio
patent: 4073587 (1978-02-01), Selwyn
patent: 4516848 (1985-05-01), Moriya
patent: 4521229 (1985-06-01), Baker et al.
patent: 4646196 (1987-02-01), Reale

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