| 摘要 |
PROBLEM TO BE SOLVED: To enhance imaging by stabilizing the rotational speed of a stepping motor subjected to feedback control. SOLUTION: A motor driver being mounted on an imaging apparatus comprises a stepping motor, means for detecting the rotational speed of the stepping motor, means for detecting the rotational direction of the stepping motor, and means for controlling the rotational speed of the stepping motor by the output signals from the rotational speed detecting means and the rotational direction detecting means. |
