| 摘要 |
PROBLEM TO BE SOLVED: To fix the rotary position of a drum surely. SOLUTION: Firstly, the drum 13 is stopped at a fixed rotational position. Then, it is judged whether a third hole IC62 detects the N pole or the S pole. When the N pole is detected, an engaging groove 25 may deviate to the left side of a lock pin 212 and hence, a drum motor 20 is rotated counterclockwise (direction A). When the third hole IC62 detects the S pole, the drum motor 20 is stopped. As the detection by the third hole IC62 is switched at the position where the lock pin 212 meets with the engaging groove part 25, such an operation may cause the engaging groove part 25 to be initially deviated to the left side of the lock pin 212. Even when this happens, the initial deviation is eliminated. COPYRIGHT: (C)2004,JPO |
