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US 4,407,003 AGranted
Thermal printer
AssigneeCanon Kabushiki Kaisha
InventorHiroshi Fukui
Life of this patent
Estimating the term…
Abstract
A thermal printer is provided in which a source voltage is detected and the driving time of a thermal head as well as the driving time of a motor for driving the thermal head, are suitably controlled according to the result of the detection.
Claims5
A thermal printer, comprising:
- a thermal head;
- a motor for driving said thermal head;
- a power source for heating said thermal head and for driving said motor;
- and
- means for detecting a voltage of said power source used in a printer, for controlling a period of time for heating said thermal head and for driving said motor in accordance with the result of said detection.
2 more elements
A thermal printer, comprising:
- a thermal head;
- a power source for energizing said thermal head;
- means for detecting a voltage of said power source, and for calculating a mean voltage value from the detected voltage;
- and
- means for controlling the energization of said thermal head in accordance with the mean voltage value calculated.
2 more elements
Dependencies are inferred from the claim text.