Method and apparatus for purging a copier developer

Details Method and apparatus for purging a copier developer Method and apparatus for purging a copier developer

1982-12-20

1984-03-27

Prescott, A. C.

Photocopying

Including fiber optics

355 14D, 118658, 118652, 430122, G03G 1509

Patent

active

044390343

ABSTRACT:
Developer mix is purged from a magnetic brush developer in a xerographic copier or printer by moving the pick-up zone of a magnetic brush roller out of the throw-off zone of a magnetic transport roller. A purge door is located adjacent the throw-off zone. In a purge operation, a catching container is attached to the developer at the purge door. The purge door is opened, and the magnets of the magnetic brush roller are rotated so that the pick-up zone of the brush moves out of the throw-off zone of the transport. The developer is then driven, and the developer mix moves through the developer, out the purge opening and into the catcher.

REFERENCES:
patent: 3411932 (1968-11-01), Malone et al.
patent: 3590412 (1971-07-01), Gerbasi
patent: 3634077 (1972-01-01), Sullivan
patent: 3816157 (1974-06-01), Donohue et al.
patent: 3927640 (1975-12-01), Smith
patent: 3969785 (1976-07-01), Ogawa et al.
patent: 4351604 (1982-09-01), Karasawa et al.
IBM 3800 Model III Printer, Operators's Guide, pp. 4-21-4-22, Jun. 1977.

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