| 摘要 |
In the present invention, a web end (1E), which is an end in the width direction perpendicular to the travel direction of a web (1), and a picture end (1A1), which is an end in the width direction of each picture (1A) repeatedly printed along the travel direction on the web (1), are detected at a first position in the web travel direction. A web end detection signal (G1) showing the detected web end (1E) and a picture end detection signal (G2) showing the detected picture end (1A1) are captured, and a control signal for aligning the picture end (1A1) with a preset picture end reference position (P1) is generated. The web is moved in the width direction by the control signal. |
