Abstract: A printing machine has at least one printing unit on which a web of material, which is to be imprinted, is imprinted by offset printing in a variable cut length. A folder is mounted downstream, in the direction of travel of the printed web, of the at least one printing unit. The folder may be located directly or indirectly from the at least one printing unit and has a variable cut length.

Abstract: A printing form is either raised or is lowered by the use of a pressure device which includes a roller. The roller is arranged on a cross-beam in such a way that the roller can selectively be placed on, or taken off the forme cylinder, or a forme that is supported on the forme cylinder, by a device. The pressure device, or the cross-beam which supports the roller can be displaced in a manner such that the distance of the roller from the cylinder can selectively be increased.

Abstract: A printing group of a printing machine includes a printing cylinder and an associated inking system which includes first, second and third ink distributing cylinders, in addition to a plurality of inking cylinders and rollers. Ink can be fed by the first distributing cylinder, along a first, front inking path, to the second distributing cylinder and along a second, rear inking path to the third distributing cylinder. An inking cylinder is displaceably arranged in the inking system such that the color of the inking system is maintained due to contact of the inking cylinder with the first distributing cylinder or the second distributing cylinder in accordance with the length of the roller of the second inking path.

Abstract: A device is used to influence the fan-on effect of a web in a web-fed rotary printing press. Sensors are used to sense and to monitor a side register control or adjustment of the web. The values provided by the sensor are supplied to the device which controls the fan-out effect.