Inkjet printer with an electric curtain force

Details Inkjet printer with an electric curtain force Inkjet printer with an electric curtain force

1991-08-14

1992-09-01

Fuller, Benjamin R.

Recorders

Markers and/or driving means therefor

With ink supply to marker

B41J 201, B41J 206

Patent

active

051443406

ABSTRACT:
An inkjet printer which comprises a nozzle having an exit opening; an electric field curtain forming unit for causing an electric field curtain force or a travelling-wave electric field curtain to act on inking material located in the vicinity of the exit opening of the nozzle; a charge injecting unit disposed in the vicinity of the exit opening of the nozzle for injecting an electric charge into the inking material; and an image control unit operable in response to image information to control the charge injecting unit to vary the amount of electric charge to be injected into the inking material. The inking material located in the vicinity of the nozzle can be expelled outwardly from the nozzle by the action of the electric field curtain force in a quantity dependent on the amount of the electric charge injected by the charge injecting unit.

REFERENCES:
patent: 3809980 (1974-05-01), Nottingham
patent: 4364054 (1982-12-01), Kelly
patent: 4618809 (1986-10-01), Maeda
patent: 4717926 (1988-01-01), Hotomi
patent: 4943818 (1990-07-01), Hotomi
patent: 4962723 (1990-10-01), Hotomi

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