Printing – Embossing or penetrating – Special-article machines
Patent
1977-10-05
1979-08-28
Eickholt, E. H.
Printing
Embossing or penetrating
Special-article machines
101DIG13, 346155, 355 3CH, 118648, 118651, G03G 1300, B41F 3500
Patent
active
041656865
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 charging 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: 3624661 (1971-11-01), Shebanow
patent: 3687107 (1972-08-01), Borelli et al.
patent: 3723645 (1973-03-01), Takami et al.
patent: 3812780 (1974-05-01), Borelli
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.
Borelli Ronald F.
Lakhani Kishor M.
Eickholt E. H.
Honeywell Information Systems Inc.
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