| 摘要 |
PURPOSE:To perform a stable paper sending by after performing a paper sending of a determined quantity by positively rotating a pulse motor, stopping it after making a reverse rotation only certain constant distances and then making a positive rotation from that position. CONSTITUTION:Providing two each flip flops F1, F2 making synchronizing with a clock input line 5 and reversing, utilizing this output and a reversed output as a driving pulse of a pulse motor PM, moreover a signal from a control circuit PMC is supplied to AND circuits AN1, AN2 to which an output of F2 is given, AND circuits are changed over with high or low of this signal level and a positive rotation or a reverse rotation of this motor PM is controlled. Accordingly after making a positive rotation and performing a determined quantity paper sending, makes a reverse rotation to stop and then performing a paper sending, during rotating to a positive direction for only a reversed distance an operational stabilization necessary for rising up time of a motor PM can be performed and a stable paper sending can be performed always. |
