| 摘要 |
<p>PURPOSE:To enable winding a blank form on the optional position of a rotary drum by controlling the recording by a nozzle on the basis of the information on the time required for the end part of the blank form to arrive at the position opposite to that of the nozzle after the rotary drum having reached a basic position. CONSTITUTION:When a slits S2 formed in one in a slit disc 11 arrives at the position 15-1 where a light-emitting element 14 for generating standard pulse signals and a light-receiving element are arranged, the time required for reaching the position of a nozzle 6-1 from the positions FE-1 and PE-1 of the front end FE and the rear end RE of a recording blank form 1 (the number of rotation pulse signals) is calculated. The results thus obtained are stored in a calculation storing circuit respectively. And when the standard pulse signal is generated, they are read out and pre-set in a counter. Then the rotation pulse signals are impressed sequentially and when they become equal to the number of the above pre-set pulse signals, carry pulses are generated to form a signal to indicate the position of paper synchronized with twice rotations of the drum, thereby a recording signal being controlled.</p> |
