Thermoelectric printing apparatus

Details Thermoelectric printing apparatus Thermoelectric printing apparatus

1985-03-25

1987-08-04

Evans, Arthur G.

Recorders

Thermal recording

346163, G01D 1510

Patent

active

046849602

ABSTRACT:
An electrothermal transfer printing apparatus employing an electrothermal transfer film having an ink layer and a resistive layer is used with a print head having a substrate which carries recording electrodes. The recording electrodes are fabricated on the substrate by thick film printing process so as to have a hardness which is controlled relative to that of the substrate. The print head is held in sliding contact with the resistive layer in the transfer film to effect selective heating of the resistive layer for the transfer of ink to a recording body. The angle at which the print head contacts the recording body depends upon the relative hardnesses of the substrate and the electrodes. The print head is cleaned after a predetermined travel of the transfer film over the print head, so that clarity of printing is maintained in spite of the passage of long lengths of electrothermal transfer film.

REFERENCES:
patent: 4329075 (1982-05-01), Applegate et al.

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