Method and apparatus for thermal printer temperature control
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United States of America Patent
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-
Jan 10, 1989
Grant Date -
N/A
app pub date -
Apr 24, 1986
filing date -
Apr 24, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method and apparatus for control of the temperature of a thermal printing device. Thermoelectric heat pumps are used to cool a thermal print head which does not cool between cycles sufficiently below the threshold temperature for the thermal paper or thermal transfer ribbon being used, due to heat build-up, particularly during high-speed operation. A sensed thermal print head temperature is digitized and compared to a reference temperature for a determination of whether or not operation of the heat pumps should be initiated or halted.
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