Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Charging simultaneous with imaging
Patent
1977-10-21
1980-04-01
Martin, Jr., Roland E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Charging simultaneous with imaging
361225, G03G 1502, G03G 1302
Patent
active
041959914
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: 2952241 (1960-09-01), Clark et al.
patent: 3332396 (1967-07-01), Gundlach
patent: 3626260 (1971-12-01), Kimura
patent: 3697172 (1972-10-01), Ohta
patent: 3914460 (1975-10-01), Maksymiak
patent: 3958988 (1976-05-01), Bixby
Brown Lee R.
Jose L. Herrera
Plumadore John D.
Foley William J.
Goodrow John L.
James River Graphics Inc.
Kane, Jr. John W.
Martin Jr. Roland E.
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