Developing device with magnetic pole having magnetic spacer memb

Details Developing device with magnetic pole having magnetic spacer memb Developing device with magnetic pole having magnetic spacer memb

1980-11-21

1982-10-19

Smith, John D.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

355 3DD, G03G 1509

Patent

active

043544541

ABSTRACT:
A magnetic roll developing device comprising a magnet for forming a developing main magnetic pole and divided into a plurality of magnet portions so as to form spaces therebetween and spacer members fitted in said spaces and forming weak magnets, the plurality of magnet portions forming a plurality of independent brush fur-like portions of the developing agent.

REFERENCES:
patent: 3402698 (1968-09-01), Kojima et al.
patent: 3703395 (1972-11-01), Drexler et al.
patent: 3939801 (1976-02-01), Tanaka
patent: 4171900 (1979-10-01), Brugger et al.
patent: 4273800 (1981-06-01), Reid

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