CPC B41J 2/3556 (2013.01) [B41J 2/04563 (2013.01); B41J 2/365 (2013.01)] | 17 Claims |
1. A thermal printer, comprising:
a thermal head including a plurality of heating elements;
a temperature sensor configured to measure a temperature of the thermal head, the temperature sensor being provided in the thermal head; and
a controller configured to control an amount of heat generated from the plurality of heating elements by determining a pulse supply time for which a pulse signal is supplied to the thermal head based on the temperature of the thermal head measured by the temperature sensor and a cumulative heat generation time of the thermal head,
wherein when a printing operation is not executed, the controller subtracts the cumulative heat generation time per predetermined period of time.
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8. A method for a thermal printer, comprising:
supplying a pulse signal to a thermal head including a plurality of heating elements;
measuring a temperature of a thermal head; and
controlling an amount of heat generated from the plurality of heating elements by determining a pulse supply time for which the pulse signal is supplied to the thermal head based on the temperature of the thermal head measured and a cumulative heat generation time of the thermal head, wherein when a printing operation is not executed, subtracting the cumulative heat generation time per predetermined period of time.
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11. A POS terminal, comprising:
a roll paper holder;
a plurality of rollers;
a discharge port; and
a thermal printer, comprising:
a thermal head including a plurality of heating elements;
a temperature sensor configured to measure a temperature of the thermal head, the temperature sensor being provided in the thermal head; and
a controller configured to control an amount of heat generated from the plurality of heating elements by determining a pulse supply time for which a pulse signal is supplied to the thermal head based on the temperature of the thermal head measured by the temperature sensor and a cumulative heat generation time of the thermal head, wherein when a printing operation is not executed, the controller subtracts the cumulative heat generation time per predetermined period of time.
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