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

1989-06-20

1991-01-08

Reynolds, Bruce A.

Recorders

Thermal recording

219216, 346155, G01D 1510, H05B 300

Patent

active

049839926

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 Jule heat and melt a portion of the ink layer, and the molten ink is transferred to a paper. The printing electrodes are made of a plating material and the substrate is made of a machinable ceramic having a hardness equal to or lower than the hardness of the printing electrodes.

REFERENCES:
patent: 3744611 (1973-07-01), Montanari et al.
patent: 4350449 (1982-09-01), Countryman et al.
patent: 4456915 (1984-06-01), Crooks et al.

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