Abstract: A ticket issuing device includes a thermal head, a temperature detector circuit for detecting the temperature of the thermal head, and a printing control circuit for driving the thermal head to repeatedly print boarding ticket information on paper a number of times, corresponding to the number of tickets to be issued, and issuing the printed paper as tickets.

Abstract: A stepping motor drive circuit includes a power source terminal and a reference potential terminal, a plurality of switching transistors, respectively connected between the reference potential terminal and ends of a plurality of excitation coils, for controlling currents flowing through the excitation coils, and a constant current control circuit for setting the currents flowing through the power source terminal and the excitation coils to a constant value.

Abstract: A stepping motor driving circuit includes a plurality of switching transistors having their emitter-collector paths connected to the corresponding ends of motor coils, a plurality of diodes having their anodes connected to the above-mentioned ends of the motor coils and their cathodes connected to a common terminal, and a braking circuit connected between the cathode of the diodes and the other end of the motor coils, in which the switching transistors are sequentially turned ON to permit excitation currents to pass through the corresponding motor coils. The braking circuit has a variable effective impedance.