Ionographic color printer with plural print heads removable tone

Details Ionographic color printer with plural print heads removable tone Ionographic color printer with plural print heads removable tone

1996-06-20

1998-05-12

Fuller, Benjamin R.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

347117, 347139, B41J 2385, G03G 908, G03G 1501, G01D 1506

Patent

active

057513295

ABSTRACT:
A color printer incorporating the invention hereof includes an ionographic image projection head which employs AC and DC potentials to provide an ion pool from which ions may be projected onto a movable dielectric surface. Plural developer modules are arranged about the dielectric surface, each developer module including an ion imaging head and a color toner module. Each developer module, after ion-beam imaging the movable dielectric surface, develops the charge image on the dielectric surface by bringing it into contact with a single color toner module. A processor controls each ionographic image projection head and each associated toner module to immediately apply the color toner after imaging of the dielectric surface. A transfer station is located downstream from the plural developer modules and enables transfer of the full color toned image from the dielectric surface to a sheet after a single pass of the dielectric surface past the plural developer modules.

REFERENCES:
patent: 4160257 (1979-07-01), Carrish
patent: 4939543 (1990-07-01), Barker
patent: 5121167 (1992-06-01), Gundlach
patent: 5176974 (1993-01-01), Till et al.
patent: 5537199 (1996-07-01), Takai et al.

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