Pneumatic delivery system for liquid toner hard copy apparatus

Details Pneumatic delivery system for liquid toner hard copy apparatus Pneumatic delivery system for liquid toner hard copy apparatus

1994-05-24

1996-05-21

Brase, Sandra L.

Photocopying

Contact printing

Light boxes

118659, 347 24, 355326R, G03G 1510

Patent

active

055194745

ABSTRACT:
A pneumatically powered toner delivery system for a hard copy machine is disclosed which is particularly adaptable to color printing and plotting in which liquid toner is used to produce electrophotographic images. A diaphragm pump is connected by a controllable rotary valve (or a manifold) to each toner reservoir of the system. Pneumatic pressure is selectively applied to the cartridges. The cartridges are connected to respective developer subsystems where toner of a particular color under pneumatic pressure from a reservoir is delivered to a developer subsystem for transfer to a photoconductor bearing a latent image.

REFERENCES:
patent: 3693661 (1972-09-01), Aurenge et al.
patent: 4987429 (1991-01-01), Finley et al.
patent: 5003352 (1991-03-01), Duchesne et al.
patent: 5117263 (1992-05-01), Adam et al.
patent: 5231455 (1993-07-01), Day
patent: 5255058 (1993-10-01), Pinhas et al.
Terrence Lynch, "Do-It-Yourself Dialysis", Design News, Jun. 7, 1993, pp. 60-63.

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