Developing device provided with three developer transport member

Details Developing device provided with three developer transport member Developing device provided with three developer transport member

1998-06-16

1999-09-07

Pendegrass, Joan

Electrophotography

Image formation

Development

G03G 1508

Patent

active

059500565

ABSTRACT:
A developing device capable of preventing a reduction of image quality due to disparities in image density or fogging and the like that result from an nonuniform toner concentration or static charge status due to inadequate mixing of a developer. The developing device is provided with a mixing screw for mixing a developer separately from a supply screw for supplying a developer to a developing roller and a collection screw for collecting a developer from the developing roller, the transport direction of the mixing screw being opposite to the transport direction of the supply screw and collection screw.

REFERENCES:
patent: 4800412 (1989-01-01), Ueda
patent: 4864349 (1989-09-01), Ito

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