Electrostatic recording apparatus

Details Electrostatic recording apparatus Electrostatic recording apparatus

1979-06-04

1981-03-03

Miller, Jr., George H.

Recorders

Markers and/or driving means therefor

Stylus feature

346 11, 346155, 346136, G01D 1516, G01D 1524

Patent

active

042544246

ABSTRACT:
The present disclosure is directed to electrostatic recording devices wherein a latent electrostatic image is recorded on a dielectric coated sheet by a stylus array spaced apart from the sheet to form an ionization gap. There is now taught a means to accurately establish the distance between the recording stylus and the dielectric surface upon which the latent image is created. A dielectric sheet containing a conductive layer is passed over a fixed recording head containing an array of styli. The fixed recording head is provided with a source of fliuid which maintains positive pressure in a cavity with the recording head, which cavity has outlets facing the dielectric sheet passing over the head. The length of the gap between the dielectric sheet and the recording head is maintained by the fluid pressure emanating from the head.

REFERENCES:
patent: 2959636 (1960-11-01), Lemelson
patent: 4124854 (1978-11-01), Kirtikar
patent: 4137536 (1979-01-01), Hinz et al.
patent: 4168506 (1979-09-01), Corsover

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