Temperature control device for head of thermal printer
First Claim
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1. A device for controlling temperature of a head of a thermal printer by compensating for a difference between an actual temperature of the head and a sensed temperature, comprising:
- temperature sensing means for sensing an actual temperature of the head to produce the actual temperature as first temperature data; and
temperature compensating means for detecting a rate of variation of the first temperature data which has occurred within a predetermined period of time, compensating the first temperature data based on the detected rate, and producing the compensated first temperature data as second temperature data.
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Abstract
In a thermal printer, a difference between an actual temperature of a head of the printer and a sensed temperature is compensated for to accurately control temperature of the head. A rate of variation in the temperature of the head which has occurred within a predetermined period of time is detected so that an overheat temperature of the head is set up according to the detected rate.
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Citations
4 Claims
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1. A device for controlling temperature of a head of a thermal printer by compensating for a difference between an actual temperature of the head and a sensed temperature, comprising:
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temperature sensing means for sensing an actual temperature of the head to produce the actual temperature as first temperature data; and temperature compensating means for detecting a rate of variation of the first temperature data which has occurred within a predetermined period of time, compensating the first temperature data based on the detected rate, and producing the compensated first temperature data as second temperature data. - View Dependent Claims (2, 3, 4)
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Specification