Magnetic brush developing apparatus

Details Magnetic brush developing apparatus Magnetic brush developing apparatus

1974-08-23

1976-02-24

Feldbaum, Ronald

Coating apparatus

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

With electromagnetic and/or electrostatic removal of...

B05B 502

Patent

active

039398013

ABSTRACT:
A magnetic brush developing apparatus for use in a dry process electrophotographic copying apparatus which includes a developing roller rotatably provided adjacent to a movable photoreceptor surface and comprising a rotatable outer cylinder and a plurality of pairs of stationary magnets fixedly disposed around the outer cylinder at predetermined angles from one another with a first pair of the stationary magnets directed toward the photoreceptor and with a second pair directed toward a sump of developing material. In each pair of magnets, especially in the first pair for development, two magnets are spaced from each other at a predetermined distance to form soft magnetic brush bristles for uniform quality of copied images.

REFERENCES:
patent: 3145122 (1964-08-01), Streich
patent: 3152924 (1964-10-01), Wanielista et al.
patent: 3392432 (1968-07-01), Naumann
patent: 3402698 (1968-09-01), Kojima et al.
patent: 3457900 (1969-07-01), Drexler
patent: 3626898 (1971-12-01), Gawron
patent: 3783828 (1974-01-01), Forgo et al.
patent: 3822139 (1974-07-01), Westdale

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