Method and apparatus for correcting deviation of temperature sensor
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United States of America Patent
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-
Oct 2, 2007
Grant Date -
May 5, 2005
app pub date -
Jun 30, 2004
filing date -
Oct 29, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for correcting deviation of a temperature sensor placed in a header having a plurality of nozzles in an inkjet printer is provided. The deviation correcting method includes spraying ink through the nozzles a predetermined number of times, measuring a temperature of the temperature sensor corresponding to the number of sprayed times, measuring a voltage output from the temperature sensor, and determining a correction value of the temperature sensor using the measured temperature and the output voltage. According to the method and apparatus, it is possible to correct a large amount of deviation of a thermistor in a header without using an additional element, that is, an ambient sensor. Therefore, since an expensive ambient sensor is not used, costs can be reduced and a printer circuit configuration is simplified.
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