Two-sided non-impact printing system

Details Two-sided non-impact printing system Two-sided non-impact printing system

G - Physics

03

G

314/15

G03G 15/23 (2006.01) B41J 2/39 (2006.01) B41J 3/60 (2006.01)

Patent

CA 1105982

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 re- tained 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. -1-

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