| 摘要 |
A method of controlling power supply and a printer adopting the same. The power supply controlling method includes the steps of obtaining information of on/off operation times of a power supply switch which supplies and interrupts the supply of power from an external power source to a power supply over a predetermined period, storing the information if a power supply off interval exceeds a predetermined off interval, determining the time of supplying and stopping power of the external power source to the power supply for each period based on the stored on/off operation time information, and connecting and separating a power supply line between the external power source and the power supply according to power supply and interruption times determined for each period. Also, the printer includes a power supply on/off operation information obtaining device generating on and off operation information of the power supply switch, and a power supply control module connecting or separating a power supply line of the external power source to the power supply according to power supply on and off operation time determined by an internal power supply on and off determining program of the power supply on and off operation information. Accordingly, power supply and interruption required for driving the printer can be automatically performed at set times without operation by a user, to thereby automatically reduce waste of power.
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