| 摘要 |
<p>In an intaglio printing press, a sheet 1 printed by an impression cylinder 5 impressed on a plate cylinder 8, ink rollers (7a, 7b, 7c) for transferring ink impressed on said plate cylinder and the sheet transmitted with held by the impression cylinder 5 and the plate cylinder 8 after the sheet fed from a feeder 2 transmitted from an upstream of a feeder board 3 to a downstream of the feeder board, the ink rollers 7a,7b,7c are impressed on when the first sheet from starting sheet supply is positioned at the upstream of the feeder board 3 and the impression cylinder is impressed on when the first sheet is arrived at the down stream of the feeder board 3 so that an impression-on timing is hastened so as to transfer an ink on the plate cylinder 8 to the first sheet when the first sheet is arrived between the impression cylinder 5 and the plate cylinder 8, and the sheet supplying is stopped and the ink rollers 7a,7b,7c and the impression cylinder 5 are thrown off impression when an irregular register occurrs in a printing operation. <IMAGE></p> |
