Alternating current electrostatic recording process

Details Alternating current electrostatic recording process Alternating current electrostatic recording process

1977-10-25

1979-04-17

Lucas, Jay P.

Recorders

Electric recording

Electrochemical

346164, G03G 1500

Patent

active

041503872

ABSTRACT:
In the electrostatic recording process comprising relatively scanning a recording electrode on an electrostatic recording material electrically connected between said recording electrode and a counter electrode, applying a high frequency alternating current or asymmetric alternating current recording signal formed by amplifying and modulating an image signal by a high frequency carrier wave between said two electrodes to form an electrostatic image on the electrostatic recording material, developing the so formed electrostatic image with a developer and, if desired, fixing the developed image, when an electrostatic recording material including an electroconductive substrate having a specific multi-layer distribution structure is used and if a dielectric layer is disposed on this electroconductive substrate in a specific arrangement selected according to the kind of the recording signal to be applied, such problems as blurring, tailing and fogging can be effectively eliminated and recorded images excellent in the density and sharpness can be obtained without substantial influences of the humidity in the recording atmosphere.

REFERENCES:
patent: 2251742 (1941-08-01), Kline
patent: 3493427 (1970-02-01), Takagi
patent: 3622468 (1971-11-01), Turner
patent: 3831179 (1974-08-01), Brill
patent: 3967959 (1976-07-01), Goffe et al.

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