Thermal recording apparatus

Details Thermal recording apparatus Thermal recording apparatus

1976-11-10

1978-02-14

Hartary, Joseph W.

Recorders

Thermal recording

219216, G01D 1510

Patent

active

040742806

ABSTRACT:
A thermal recording apparatus for recording an information signal on the heat-sensitive recording medium in a form of visible information comprises a plurality of heat-generating resistance elements, a drive circuit for supplying selectively drive current to said heat-generating resistance elements in response to the information signal, a recording medium disposed in contact with the plurality of heat-generating resistance elements and adapted to change color upon sensing heat, means for driving the plurality of heat-generating resistance elements and the recording medium relative to each other, and a switching circuit means for inverting the direction of the drive current applied to the heat-generating resistance elements in a predetermined manner.

REFERENCES:
patent: 3467810 (1969-09-01), Cady
patent: 3984844 (1976-10-01), Tanno

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