Thermal printer contrast control
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 17, 1985
Grant Date -
N/A
app pub date -
Mar 2, 1984
filing date -
Mar 2, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for controlling the voltage and hence the power delivered to a thermal print head heater. The voltage and hence the power delivered to a thermal print head heater is controlled in response to the ambient temperature surrounding the thermal print head so as to produce printed characters with uniform contrast between the character and the paper surrounding the character independent of the ambient temperature surrounding the print head.
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