Toner separation and recovery apparatus

Details Toner separation and recovery apparatus Toner separation and recovery apparatus

1980-01-03

1982-03-16

Moses, Richard L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

1525651, 118652, G03G 2100

Patent

active

043198325

ABSTRACT:
A cylindrical electrode (26) is disposed in a tubular housing (22) and applied with an electric potential opposite in polarity to a charge on usable toner particles removed from a photoconductive drum (13). A fur brush (21) bifunctions to remove the toner and foreign matter from the drum (13) and create an air flow which carries the toner and foreign matter through a passageway (41) defined between the housing (22) and cylinder (26). The foreign matter is carried into a foreign matter chamber (29) by centrifugal force while the toner adheres to the cylinder (26) which is rotated in the same direction as the air flow. The toner is carried past a blade (34) which extends closely adjacent to the cylinder (26) into a toner recovery chamber (31) from which it is scrapingly removed from the cylinder (26) and recycled.

REFERENCES:
patent: 3917397 (1975-11-01), Tanaka et al.
patent: 3955235 (1976-05-01), Meyer
IBM Tech. Disc. Bull., vol. 19, No. 3, Aug. 1976, p. 808.
IBM Tech. Disc. Bull., vol. 16, No. 7, Dec. 1973, p. 2112.

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