DRIVING CONTROL CIRCUIT IN DEVELOPING DEVICE OF X-RAY FILM

PURPOSE:To improve a driving control circuit by operating the first monostable multivibrator with the output of a self-holding circuit and operating an oscillator with the inverted output of a flip flop circuit and the output of the self-holding circuit. CONSTITUTION:The signal from an analog switch 3 is inputted to an OR gate circuit 8, and the second monostable multivibrator 9 outputs a single pulse by the output, and this pulse is inputted to an OR gate circuit 11. Since the output of a timer circuit 10 is '1' and signal '0' is inputted to an AND gate circuit 12 through an inverter 13, the inputs of the AND gate circuit 12 are '0' and '1', and a flip flop circuit 14 is inverted, and the circuit of a motor 15 is opened to stop the driving, and the output of the flip flop circuit 14 is inputted to an AND gate circuit 21. The output of the circuit 21 is inputted to an oscillating circuit 5, and the oscillating circuit 5 is oscillated with a frequency set hby an oscillation frequency adjusting circuit 4 in a development process A. Thus, automatic development is performed smoothly and surely.