Patent ID: 8218995

Claim:
An image forming apparatus to receive print data and perform printing, comprising: a print engine unit to perform the printing; a print controller to output a power control signal to control driving voltages provided to the print engine unit; and a power supply to supply the driving voltages to a plurality of components of the print engine unit, the power supply comprising: a transformer to transform an input voltage and to output the transformed voltage as one of the driving voltages to one of the plurality of components; a voltage distributor connected to an output end of the transformer to detect the driving voltage, and to reduce the detected driving voltage; a comparer to compare the reduced driving voltage of the voltage distributor with the power control signal, and to output a comparison result; and an amplifier to amplify the comparison result of the comparer and to output the amplified result to at least one of the remaining components of the print engine of the print engine.