Electrographic recording apparatus and method

Details Electrographic recording apparatus and method Electrographic recording apparatus and method

1979-09-24

1981-02-03

Moses, R. L.

Photocopying

Including fiber optics

355 3CH, 355 14CH, G03G 1500

Patent

active

042485215

ABSTRACT:
An improved electrographic recording apparatus and method. An electrographic recording medium has a charge retaining front surface on which charge is distributed in a pattern representing a desired image to be recorded, and a field permeable conductive layer. While charge is being deposited on the charge retaining surface of the electrographic medium, a field is established and maintained behind the rear surface of the medium, said field penetrating the conductive layer and having a field strength on the charged side of the medium that opposes a field that causes charge to be deposited on the charge retaining surface of the medium. In another aspect of this invention, the recording apparatus has a toner application station that is located apart from the charge depositing means, and a second field, having the same polarity as the first field, is established and maintained behind the rear surface of the electrographic medium at the toner station.

REFERENCES:
patent: 4167325 (1979-09-01), Plumadore

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