| 摘要 |
PURPOSE:To automatically perform registering without looking printed matter by detecting the position of the register mark on the surface of a plate and the rotary position of a printing cylinder. CONSTITUTION:A means 8 detecting the rotary position of a plate cylinder 1 of each color or the rotary positions of both of the plate cylinder 1 and an impression cylinder 3, a means operating the shift quantity of the rotary position of the plate cylinder 1 of each color from the detected position or the shift quantities of the rotary positions of both cylinders 1,3 from the detected positions, a means 7 detecting the register mark on the surface of the plate of each color plate cylinder and a means operating the shift quantity of the position of each color Plate surface from the detected position of the mark are provided. Next, from the rotary position shift quantity, the register mark shift quantity and a preliminarily inputted shift quantity judging standard, it is judged whether shift quantity is corrected by a judging means. The shift quantity is corrected on the basis of the signal of the judging means. |
