| 摘要 |
PURPOSE:To make it possible to print multiple colors wherein a color mixture scarcely occurs by providing a blanket cylinder and an impression cylinder wherein the peripheral surface of the blanket cylinder is equally divided into a plurality of areas, plate cylinders arranged to abut selectively against the areas such that a plate cylinder to abut varies at every area, and inking sections on each plate cylinder. CONSTITUTION:A blanket cylinder 2 and an impression cylinder 1 are provided. The peripheral surface of the blanket cylinder 2 is equally divided into a plurality of areas, and plate cylinders 3a-3d having different colors arranged to abut selectively against the areas such that a plate cylinder to abut varies at every area are provided. The plate cylinders 3a-3d are provided with inking sections 5, respectively. The impression cylinder 1 has a plurality of holder claws 1a-1e on the peripheral surface thereof at equal intervals. The number of the claws is set to be higher than that of the plate cylinders by 1. Each claw holds a printing paper 10 sequentially for printing. One color is printed on each paper 10 at every 1 rotation of the impression cylinder 1. One printing paper is rotated as many times as the number of the plate cylinders 3a-3d and a printed paper is delivered by a delivery cylinder 7 sequentially after necessary colors are printed. Thus, a color mixture can be avoided. |
