Abstract: The web-fed printing machine preferably intended for the printing of banknotes has two closely adjacent impression cylinders (2, 3), each of which interacts with several blanket cylinders (4, 6). Each blanket cylinder (4, 6) is inked by a plate cylinder (5, 7) which receives its ink from its own inking unit (9, 9'; 11, 11'). The paper web (P) runs between the respective impression cylinder (2, 3) and blanket cylinders (4, 6), partially looping first round one impression cylinder (2) and then in the opposite direction round the other impression cylinder (3), so that the two sides of the paper are successively printed directly with the individual colors. All the blanket and plate cylinders interacting with an impression cylinder (2, 3) are arranged on a respective common exchangeable machine stand (15, 16).

Abstract: The intaglio printing machine comprises a plate cylinder (4) with a plurality of engraved printing plates equipped with intaglio cuts representing the elements of a main design and with less deep and finer intaglio cuts representing the elements of a safety background, an impression cylinder (3), a wiping device (10) and a multicolor inking system. This inking system consists of a collector inking cylinder (5) having an elastic surface interacting with the engraved plates mounted on the plate cylinder (4) and having the same diameter as this. The collector inking cylinder (5) is inked by as many selective color inking cylinders (7) as there are colors to be printed, these selective color inking cylinders (7) having reliefs corresponding to the colored zones of the safety background and of the main design, an inking device (8) being associated with each selective color inking cylinder (7).