IC chip, print apparatus, and heat generation warning method

摘要

A printer ( 1 ) comprises a motor driver ( 34 ) for driving a carriage motor ( 20 ) and a paper feed motor ( 22 ). The motor driver ( 34 ) has a thermal shutdown circuit ( 43 ). If internal temperature T of the motor driver exceeds threshold value Ta, the thermal shutdown circuit shuts down the power of the motor driver. The motor driver has an internal temperature detection circuit ( 45 ). If the internal temperature T exceeds threshold value Tb (<Ta) before thermal shutdown processing operates, the internal temperature detection circuit outputs a HW signal. A CPU ( 29 ) executes heat generation stop processing based on the HW signal and controls the motor driver to stop the carriage motor and the paper feed motor for a predetermined time.