Two side multi roller toner station for electrographic non-impac

Details Two side multi roller toner station for electrographic non-impac Two side multi roller toner station for electrographic non-impac

1977-10-05

1979-07-17

Eickholt, E. H.

Printing

Embossing or penetrating

Special-article machines

101DIG13, 346153, 427145, 118647, G03G 1300, B41F 3500

Patent

active

041611411

ABSTRACT:
A method and apparatus for printing electrographically upon two sides of a chemically pre-treated recording medium, at comparatively high speed such as is required in a computer print-out apparatus.
A pre-treated paper medium comprised of a conductively treated paper base supporting a plastic dielectric coating on each of its sides, is positioned between electrode assemblies comprised of matrices of a plurality of styli which receive variable information from a data processor, or other equipment and by selectively changing the plurality of styli generating a latent image of alphanumeric characters or other variable printing by electrostatic discharge on the paper which is retained by the coating. The latent image is developed, i.e., made visible, by subjecting the paper medium to charged toning particles suspended in a liquid toning carrier. The image is then fixed, i.e., made permanent by vaporizing the liquid carrier with heat.

REFERENCES:
patent: 3081698 (1963-03-01), Childress et al.
patent: 3569982 (1971-03-01), Shebanow
patent: 3624661 (1971-11-01), Shebanow
patent: 3687107 (1972-08-01), Borelli et al.
patent: 3723645 (1973-03-01), Takami et al.
patent: 3791345 (1974-02-01), McCutcheon
patent: 3812780 (1974-05-01), Borelli
patent: 3820891 (1974-06-01), Kurakawa
patent: 3915874 (1975-10-01), Machida
patent: 3958251 (1976-05-01), Borelli
patent: 3983815 (1976-10-01), Borelli
"Hard Copy and Forms Printer", Hider, IBM Tech. Discl. Bulletin, vol. 9, No. 9, Feb. 1967, pp. 1074-1075.

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