Toner remixing developing unit

Details Toner remixing developing unit Toner remixing developing unit

1997-10-21

1999-10-05

Royer, William

Electrophotography

Image formation

Development

G03G 1508

Patent

active

059637684

ABSTRACT:
A developing unit for an electrophotographic apparatus that uses a cleaning roll, oppositely charged from the toner remaining on the developing roller, to clean a developing roller after a latent electrostatic image has been developed into a latent toner image. The ink is removed from the developing roller and mixed with fresh toner from the toner cartridge to maintain a uniform charge throughout the toner that is applied to the developing roller and to increase the quality of resolution obtained when printing for an extended period of time.

REFERENCES:
patent: 3918808 (1975-11-01), Narita
patent: 4989037 (1991-01-01), Nagatsuna
patent: 5057871 (1991-10-01), Hirose et al.
patent: 5223668 (1993-06-01), Takaya et al.
patent: 5317370 (1994-05-01), Kohyama et al.
patent: 5387963 (1995-02-01), Kajimoto et al.
patent: 5387967 (1995-02-01), Brewington et al.
patent: 5404211 (1995-04-01), Hashimoto et al.
patent: 5570164 (1996-10-01), Yamamoto et al.

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