Printing head for resistive ribbon type printing apparatus

Details Printing head for resistive ribbon type printing apparatus Printing head for resistive ribbon type printing apparatus

1991-04-30

1991-12-03

Fuller, Benjamin R.

Recorders

Thermal recording

346155, 427 98, 427103, 427289, 29620, G01D 1510, B05D 512, H01C 1706

Patent

active

050703439

ABSTRACT:
A printing head which comprises an insulating substrate and a plurality of printing electrodes for a resistive ribbon type printing apparatus, in which a ribbon composed of a layer of thermal transferable ink and an electrical resistive layer is supplied with an electric current through selected printing electrodes so that the current passes through a portion of the resistive layer to generate Joule heat and melt a portion of the ink layer, and the molten ink is transferred to a paper. The ceramic substrate is provided with a plurality of U-shaped grooves, and each of the printing electrodes is formed in each of the grooves and has a thickness smaller than the depth of the grooves.

REFERENCES:
patent: 3744611 (1973-07-01), Montanari et al.
patent: 4170728 (1979-10-01), Flasck
patent: 4350449 (1982-09-01), Countryman et al.
patent: 4456915 (1984-06-01), Crooks et al.
patent: 4679054 (1987-07-01), Yoshikawa et al.
patent: 4983992 (1991-01-01), Nakazawa

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