Thermal printhead control circuit

Details Thermal printhead control circuit Thermal printhead control circuit

1977-01-31

1978-05-16

Albritton, C. L.

Electric heating

Heating devices

Combined with diverse-type art device

346 76R, H05B 100

Patent

active

040900606

ABSTRACT:
A thermal printhead has heating elements arranged for multiplexing so as to limit the number of leads required to selectively energize the heating elements. Current diverting resistors are utilized to act as a shunt path to divert current from certain of the heating elements to prevent unwanted shadows from being produced on the thermal sensitive paper.

REFERENCES:
patent: 3725898 (1973-04-01), Canton
patent: 3965330 (1976-06-01), Williams
patent: 4032925 (1977-06-01), Kos

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