Method for controlling voltage and providing temperature compens

Details Method for controlling voltage and providing temperature compens Method for controlling voltage and providing temperature compens

1976-10-27

1978-09-12

Eickholt, E. H.

Typewriting machines

Typing by other than type-face or type-die

Thermal

400578, 219216, 219483, 346 76R, B41J 124, B41J 320, G08B 2300

Patent

active

041133919

ABSTRACT:
A method and apparatus is provided for controlling the period or pulse width of pulses applied to exothermic printing elements of a thermal printer to effect printing. Control of the period or pulse width is in response to variations in applied voltage and ambient temperature. A pulse generator for this purpose may include such elements as a varistor, a constant voltage element and a thermistor.

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