Developing apparatus for improved charging of flying toner

Details Developing apparatus for improved charging of flying toner Developing apparatus for improved charging of flying toner

1982-09-23

1984-10-23

Prescott, A. C.

Photocopying

Including fiber optics

355140, 118620, G03G 1508

Patent

active

044785054

ABSTRACT:
In a developing apparatus, a conveyor for conveying developer particles supplied from developer supplying means defines a gap with the surface of a photosensitive body. A developer supplying passage for conveying the developer particles is provided between the developer supplying means and the gap. The developer supplying passage is defined by the conveyor and an electrode plate provided at a predetermined interval with the conveyor. An alternating electric field is applied to the developer supplying passage by an A.C. power source to reciprocate the developer particles between the conveyor and the electrode plate, thereby sufficiently and uniformly charging the developer particles by friction.

REFERENCES:
patent: 3908037 (1975-09-01), Bickmore
patent: 4007707 (1977-02-01), Buchan et al.
patent: 4194830 (1980-03-01), Ohnuma et al.
patent: 4385829 (1983-05-01), Nakahata et al.

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