Developing apparatus

Details Developing apparatus Developing apparatus

1988-06-23

1990-05-29

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

118658, G03G 1509

Patent

active

049299816

ABSTRACT:
A developing apparatus wherein a magnet is stationarily disposed within a sleeve for carrying a developer. Adjacent an outer periphery of the magnet, only two magnetic poles having different polarities. They are diametrically opposed with respect to a center of the sleeve. One of the magnetic poles form a magnetic field in the developing zone, whereas the other magnetic pole forms a magnetic field in the zone for regulating the thickness of the layer of the developer on the sleeve.

REFERENCES:
patent: 3923034 (1976-01-01), Takahashi
patent: 4174903 (1979-11-01), Snelling
patent: 4185916 (1980-01-01), Miller et al.
patent: 4548489 (1985-10-01), Yoshikawa

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