Abstract: A multicolor printing press incorporating a plurality of plate cylinders (3, 4) capable of winding dampening-waterless plates (50) onto themselves at the predetermined positions of the printing press body (1). The multicolor printing press is provided with a plurality of inking devices (7, 8) and plate feeding/discharging devices (5, 6) which are commonly made available for these plate cylinders (3, 4) so that these devices can individually be mounted onto and removed from the positions of printing press body (1) opposite the plate cylinders (3, 4), thus allowing the printing plate (50) to be automatically fed to and discharged from the plate cylinders (3, 4) and the printing operation to be quickly and easily changed as required.

Abstract: An impression cylinder (11) and a blanket cylinder (2) are made in contact with/separated from each other at prescribed timing. Continuous paper (12) inserted between the impression cylinder (11) and the blanket cylinder (2) is intermittently fed in association with the said timing for printing. A pin feed tractor (13) arranged on an inlet side of a printing position forward/reversely feeds and stops the continuous paper (12) at timing previously set in relation to the said timing for contact/separation. A suction conveyer (14) arranged on an outlet side of the printing position sucks and conveys the printed continuous paper (12) while switching its suction force in plural of stages in relation to the said paper feeding timing.