Multicolor electrophotographic development system with detachabl

Details Multicolor electrophotographic development system with detachabl Multicolor electrophotographic development system with detachabl

1990-11-14

1992-10-06

Grimley, A. T.

Photocopying

Contact printing

Light boxes

118645, 118659, 222105, 222318, 222DIG1, 355245, 355260, 355326, G03G 1510

Patent

active

051536595

ABSTRACT:
A liquid electrophotographic development system has a plurality of removable cartridges mounted on a rotatable support for selective engagement with an electrophotographic member to be developed. Each cartridge has a liquid developer reservoir and a flexible toner concentrate container from which concentrate is supplied to the developer in the reservoir as needed. A fluted roll pumps developer in a uniform manner from the reservoir to the electrophotographic member. After depletion of the toner concentrate and developer, any developer remaining in the cartridge can be pumped into the flexible container to prevent spillage on disposal of the cartridge. The cartridge housing has only one opening and minimum-size passages between the reservoir and the opening to inhibit evaporation of developer liquid.

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patent: 4800839 (1989-01-01), Ariyama et al.
patent: 4931838 (1990-06-01), Ban et al.
patent: 4947215 (1990-08-01), Chuang

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