Temperature compensated continuous tone thermal printer

Details Temperature compensated continuous tone thermal printer Temperature compensated continuous tone thermal printer

1986-07-24

1987-12-01

Shaw, Clifford C.

Recorders

Thermal recording

358298, 400120, G01D 1510, H04N 123, B41J 320

Patent

active

047107839

ABSTRACT:
A continuous tone temperature compensated thermal printing apparatus is described which uses a thermistor that produces a signal representative of the average temperature of a print head. This signal is used to control the pulse width of constant current pulses which are used to energize heating elements of a print head in printing an image pixel.

REFERENCES:
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patent: 4370666 (1983-01-01), Noda et al.
patent: 4391535 (1983-07-01), Palmer
patent: 4475114 (1984-10-01), Koyama et al.
patent: 4494126 (1985-01-01), Todoh
patent: 4532523 (1985-07-01), Tanaka
patent: 4574293 (1986-03-01), Inui et al.
patent: 4594501 (1986-06-01), Culley et al.
patent: 4621271 (1986-11-01), Brownstein

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