Combined sheet-fed rotary printing machine for securities, especially banknotes

Abstract From the Canadian patent

The printing machine is composed of an indirectly printing printing unit , and a sheet transport device , composed solely of drums and of a following intaglio printing unit . The indirectly printing printing unit has two interacting blanket cylinders , each of which is inked with several colors by several plate cylinders . The sheets are passed onto one of the blanket cylinders from a carry over drum and after passing through the nip between two blanket cylinders , thereby being printed on both sides are, taken over by a transfer drum of the sheet transport device. The circumferential region which is located between the carry-over drum and transfer drum and over which the sheet passes …