Three electrode system in the generation of electrostatic images

Details Three electrode system in the generation of electrostatic images Three electrode system in the generation of electrostatic images

1978-07-17

1979-07-03

Lucas, Jay P.

Recorders

Electric recording

Electrochemical

313207, 3151694, G03G 15044, H01J 6106

Patent

active

041602579

ABSTRACT:
Generation of charged particles by extracting them from a high density source provided by an electrical gas breakdown in an electrical field between two conducting electrodes separated by a solid insulator, subject to the influence of a third electrode. The ions are generated by a high frequency alternating potential between a "driver" electrode and a "control" electrode. The ions are employed in charging a dielectric member to form a latent electrostatic charge image. A "screen" electrode between the control electrode and dielectric member isolates the potential on the dielectric member from the ion generating means, and provides an electrostatic lensing action.

REFERENCES:
patent: 3438053 (1969-04-01), Howell
patent: 3450929 (1969-06-01), Dibbern
patent: 3513351 (1970-05-01), Kelley
patent: 3569756 (1971-03-01), Reifenschweiler
patent: 3715762 (1973-02-01), Magill
patent: 3765027 (1973-10-01), Bresnick
patent: 3787876 (1974-01-01), Pressman
patent: 4087807 (1978-05-01), Miauecz

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