Abstract: A flexographic printing press comprising a plurality of inking units and plate cylinders and at least one impression cylinder, which is driven by a coaxial central gear in mesh with the gears of the plate cylinders rotatably mounted on plate cylinder carriages, which are adapted to move toward and away from the impression cylinder on tracks provided in the machine frame. That printing press is characterized in that each plate cylinder gear has a projection or hub provided on its periphery with angularly spaced detent bores equal in number to the plate cylinders and disposed on respective axially spaced peripheral lines. The plate cylinder carriages have detent pins, which are axially or angularly movable and are disposed in respective radial planes and are offset relative to each other so that each pin is adapted to enter that detent bore of that plate cylinder, which has a detent bore at a corresponding axial location.

Abstract: In an inking mechanism for a rotary printing press, an inked distributing channel is defined between an ink applicator roller, a doctor blade holder and two doctor blades, the blade holder being articulated to a shaft so that the blades rest on the surface of the applicator roller.