Multiple applicator roller toner station

Details Multiple applicator roller toner station Multiple applicator roller toner station

1977-10-05

1979-02-27

Schroeder, Werner H.

Coating apparatus

Control means responsive to a randomly occurring sensed...

118651, 118652, 101DIG13, G03G 1510

Patent

active

041413172

ABSTRACT:
A method and apparatus for developing an electrographic-latent image on a pre-treated paper medium, by utilizing multiple rollers partially dipped in a liquid carrier.
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 in the form of electronic signals from a data processor, or other equipment and by selectively changing the plurality of styli generating a latent electrographic 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. Multiple rollers, one each at predetermined locations, are partially submerged in a liquid toning carrier and pick up sufficient toning so as to form a meniscus between the upper portions of each roller and the paper medium. The image is then fixed i.e., made permanent by vaporizing the liquid carrier with heat.

REFERENCES:
patent: 3256855 (1966-06-01), Oliphant
patent: 3367791 (1968-02-01), Lein
patent: 3596635 (1971-08-01), Smitzer
patent: 3774574 (1973-11-01), Sato et al.
patent: 3816114 (1974-06-01), Fukushima et al.
patent: 3817212 (1974-06-01), Fukushima et al.
patent: 3893417 (1975-07-01), York

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