Thermal printer

Electric heating – Heating devices – Combined with diverse-type art device

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Details

346 76PH, 400120, H05B 100, G01D 1510

Patent

active

044343540

ABSTRACT:
A thermal printer has a circuit arrangement for extending a duty cycle of a thermal head as a battery voltage drops in order to maintain a record density at a constant level.

REFERENCES:
patent: 3874493 (1975-04-01), Boyd
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patent: 4168421 (1979-09-01), Ito
patent: 4219824 (1980-08-01), Asai
patent: 4262188 (1981-04-01), Beach
patent: 4305080 (1981-12-01), Cunningham
patent: 4309712 (1982-01-01), Iwakura
patent: 4330786 (1982-05-01), Hatabe
patent: 4360819 (1982-11-01), Saito et al.
patent: 4370666 (1983-01-01), Noda

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