DRIVE CONTROLLER, ITS METHOD, ITS PROGRAM, RECORDING MEDIUM WHERE THE PROGRAM IS RECORDED, AND INFORMATION PROCESSOR

摘要

An information processing section provided with a pickup (242) is supported movably on a guide shaft so supported as to bridge step parts facing each other, and a movement regulating click engages with a lead screw of a motor for movement. At the time of initialization for recognizing the position of the pickup (242), the same number of driving pulses as that of pulses for moving the pickup over the whole movable range (W) between the step parts are supplied to the motor for movement, and the outermost circumference position (A) is recognized as the position of the pickup (242). After initialization or information processing, the innermost circumference position (B) opposite to the outermost circumference position (A) at the time of initialization is set as a waiting position, and the pickup is moved. Since the movement is started from the innermost circumference position (B) at the time of initialization, only driving pulses required to move the pickup over the whole movable range (W) is supplied, and noise due to so-called tooth skipping or step out can be prevented at the time of initialization.