Abstract: A printing press includes a frame that supports one or more printing units. Each printing unit includes a retractable inker module cantileverly supported by the frame, an ink injection system having a pump, a sidelay registration mechanism for one or more plate cylinders of the printing unit, an extension sleeve extending a length of a plate cylinder sleeve, and an expandable layer for each blanket cylinder and plate cylinder that provides changing the inner diameter of the blanket cylinder and the plate cylinder.

Abstract: An inking unit includes a first smoothing roller, an ink feed unit constructed as an ink droplet generator for applying a metered quantity of ink to the first smoothing roller, by one of an indirect and a direct path, respectively, the indirect path being via at least one additional roller interposing the ink feed unit and the first smoothing roller, and the direct path being directly to the first smoothing roller, and further including a second smoothing roller operatively connected to the first smoothing roller for distributing the application of ink, each of the first and the second smoothing rollers having a hard smoothing surface with a hardness of one of at least 80 Shore A and at least 30 Shore D, respectively, for forming a uniform film of ink; and an offset printing machine including the inking unit.

Abstract: An inking unit for a printing machine, which includes at least one ink roller rolling on a plate cylinder of the printing machine, an ink jet printing apparatus with a plurality of ink jets that can be controlled selectively, and an ink transfer device with a rotating mantle surface for transferring printing ink from the ink jet printing apparatus to the at least one ink roller. A compact and stencil-free inking unit for high-quality printing is achieved and the at least one ink roller and the ink transfer device, and have the same outside circumference as the plate cylinder.

Abstract: A rotary printing machine having a cylinder, two doctor blades acting on the cylinder, and a gravity fed ink dispensing mechanism and a drum cleaning spray system provided on a reciprocating carriage. Ink is applied in excess to one of the doctor blades and excess ink is removed by the other. One of the ink dispensing mechanisms can be removed and replaced while printing is taking place using ink from the other ink dispensing mechanism.

Abstract: An inking unit includes a first smoothing roller, an ink feed unit constructed as an ink droplet generator for applying a metered quantity of ink to the first smoothing roller, by one of an indirect and a direct path, respectively, the indirect path being via at least one additional roller interposing the ink feed unit and the first smoothing roller, and the direct path being directly to the first smoothing roller, and further including a second smoothing roller operatively connected to the first smoothing roller for distributing the application of ink, each of the first and the second smoothing rollers having a hard smoothing surface with a hardness of one of at least 80 Shore A and at least 30 Shore D, respectively, for forming a uniform film of ink; and an offset printing machine including the inking unit.

Abstract: Method for metered transferring of ink to an ink roller in a printing unit of a rotary offset printing press, wherein the ink is applied under pressure to a casing surface of the ink roller, includes determining digital data for effecting a two-dimensional ink distribution on the casing surface corresponding to an ink consumption. The ink is ejected in droplets from an ink-jet unit to the ink roller. The ink-jet unit has nozzles which are aligned with one dimension of the two-dimensional ink distribution. The ink-jet nozzles of the ink-jet unit are controlled by a control device in accordance with the digital data.

Abstract: A running strip of cigarette paper or the like is provided with printed matter by the profiled peripheral surface of a printing roller which receives ink from one of several rollers including a pair of transfer rollers defining a nip which receives ink from an adjustable nozzle. The latter is movable back and forth longitudinally of the nip by an electric or other suitable motor receiving signals from a programmed control unit by way of an amplifier. The control unit regulates the speed of the nozzle and hence the distribution on, and the rate of delivery of printing ink to, the peripheral surface of the printing roller.

Abstract: An ink rail 1 for a printing press has an ink rail body 5 having an ink supplying surface 53 constucted by a concave curved surface able to be opposed to the outer circumferential surface of the fountain roller F at a suitable distance C; an inclination member 4 arranged on a lower face of the ink rail body 5 and having an angle of inclination a between upper and lower faces of the inclination member and an inclining direction set to a transversal direction of the ink rail body 5; a pedestal 3 for supporting the inclination member 4; a supporting member 2 for supporting the pedestal 3; first adjusting means 6 capable of moving the ink supplying surface 53 in a thickness direction of the inclination member 4 with respect to the outer circumferential surface of the fountain roller F; and second adjusting means 7 capable of moving the ink supplying surface 53 in a direction perpendicular to a moving direction provided by the first adjusting means with respect to the outer circumferential surface of the fountain