Thermal head

Details Thermal head Thermal head

1986-10-31

1987-12-15

Goldberg, E. A.

Recorders

Thermal recording

219216, 219543, 338308, 338309, G01D 1510, H05B 300

Patent

active

047136715

ABSTRACT:
A thermal head having a glass glaze layer, a heat generating resistance layer, an electric power supplying conductor layer and a protecting layer formed on an insulating substrate, wherein the glass glaze layer is so formed that the lower portion thereof is embedded in the insulating substrate and the upper portion thereof is protruded from the surface of the insulating substrate, and a metal layer is disposed in contact with the lower surface of the glass glaze layer.
The heat generating portion can effectively be protruded to render the contact with the recording paper or ink ribbon favorable, thereby improving the heat efficiency. Further, temperature falling rate once after the temperature of the heat generating portion has been raised can be increased.

REFERENCES:
patent: 4259564 (1981-03-01), Ohkubo et al.
patent: 4516136 (1985-05-01), Willcox

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