| 摘要 |
<p>PURPOSE: To improve the efficiency of a print cutting by advancing a web backward for a prescribed length based on the assumption that the position of a web as an unnecessary part when the cut mark is not defected. CONSTITUTION: At the time the web 2 progresses through the print cutter, a sensor 7 detects the presence or absence of the cut mark 4. In case there is no cut mark 4, a print cutter controller 6 controls a print traveling device 5 to progress the web 2 until the cut mark 4 is detected or the web 2 progresses to the length of the max. extent. The length of the max. extent is the length at which the web 2 can progress without being withdrawn into a sorter mechanism by a sorter device 9. The web 2 is advanced backward to the length of the prescribed reverse direction in case the cut mark 4 is not detected after the web 2 progresses to its length. The length in the backward direction is the length at which the web may be processed by a sorter driving device without entanglement. The web 2 is cut by the instruction to a knife 8 after the backward advance of the web 2.</p> |
