Digital printing apparatus

Details Digital printing apparatus Digital printing apparatus

1988-09-26

1989-08-08

Evans, Arthur G.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346155, 346105, G01D 1500

Patent

active

048557684

ABSTRACT:
The digital printing apparatus of this invention including ink retaining member of which the surface has a multiplicity of minute ink-wettable dot surfaces being formed as arranged with a fixed pitch in the direction of width of the recording paper. These dot surfaces are enclosed with ink-repellent surfaces. When ink is applied to the entire surface of the ink retaining member, the ink is raised only on the dot surfaces. The digital printing apparatus of this invention is provided with a multiplicity of control electrodes arranged in at least one line as spaced with a fixed pitch equalling the pitch with which the dot surfaces are spaced in the aforementioned direction. When an electrostatic force is applied between selected ones of the control electrodes and the corresponding dot surfaces, the prominences of ink held on the dot surfaces are caused to fly toward the control electrodes and land on the recording paper held between the control electrodes and the ink retaining member.

REFERENCES:
patent: 4208965 (1980-06-01), Fichler et al.
patent: 4573061 (1986-02-01), Fujii et al.
patent: 4725860 (1988-02-01), Kohyama et al.
patent: 4725861 (1988-02-01), Oda
Proceedings of 1st Non-Impact Printing Technologies Symposium at Hattsuei Kaikan Hall, Toranomon, Tokyo, Jul. 24 and 25, 1984.

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