Cartridge utilizing a plurality of contact charging members

Details Cartridge utilizing a plurality of contact charging members Cartridge utilizing a plurality of contact charging members

1995-06-07

1996-06-11

Ramirez, Nestor R.

Photocopying

Contact printing

Light boxes

355210, G03G 1502

Patent

active

055260977

ABSTRACT:
Cartridge (1) contains a brush charger (32) and printer (40) contains a charge roller (30). Upon installation of the cartridge a top shutter (7) is moved downward and the charge roller is moved by a pivoted arm (44) through the opening left by the shutter to contact a photoconductor drum (24) in the cartridge. In operation the roller functions after charging by the brush at a potential to control the final charge on a photoconductor prior to xerographic imaging. The precharging by the brush greatly reduces deterioration of the charge roller, permitting long machine life with the accurate and uniform operation of a charge roller.

REFERENCES:
patent: 4387980 (1983-06-01), Ueno et al.
patent: 5017964 (1991-05-01), Sadwick
patent: 5095335 (1992-03-01), Watanabe et al.
patent: 5289234 (1994-02-01), Asano et al.
patent: 5323215 (1994-06-01), Ohtaka et al.
patent: 5365315 (1994-11-01), Baker et al.
patent: 5430526 (1995-07-01), Ohkubo et al.

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