| 摘要 |
<p>PURPOSE:To prevent a read sensor from misreading marks by preventing a step-out. CONSTITUTION:Reading operation is started by reading a read start mark with a 1st read sensor 7 and the contents of the output signal of a read sensor 8 are stored and held at the timing of inversion between the output signals of both the read sensors 7 and 8, thereby reading in the correction code of a position correcting means. Cornsequently, no step-out is caused and the correction code can securely be read in; and marks are prevented from being misread and the current of this cart can precisely be corrected.</p> |
