Patent ID: 7290847
Filing Date: 2007-11-06
Classification: B41J

Abstract:
1. An apparatus: a motor driver for outputting a drive signal responsive to a control signal for driving a motor, wherein when an internal temperature of the motor driver exceeds a first threshold value, output of the drive signal is shut down, the motor driver comprising: a temperature detection unit for detecting the internal temperature of the motor driver; a signal output unit for outputting a warning signal when the internal temperature detected by the temperature detection unit exceeds a second threshold value set to a lower temperature than the first threshold value; and a control unit for controlling the motor driver connected thereto by using the control signal and for detecting a stop of the motor in a normal operation mode and the warning signal, wherein the control unit determines whether or not to activate a heat generation stop mode based on the warning signal when detecting the stop of the motor in the normal operation mode.