Abstract: A printing unit of a printing machine is configured having at least two frame parts, a spacing between which can be modified. Several form cylinders and several transfer cylinders, which cooperate to print a web, are located on each of the at least two frame parts. The distance between the two frame parts is less when the printing unit is closed than it is when the printing unit is open. The printing unit includes at least two web guiding elements. A first tangent is established by a transfer cylinder of a stationary one of the frame parts. A second tangent is established by the at least two web guiding elements. The first tangent and the second tangent are spaced from each other at a distance.

Abstract: A printing unit of a printing machine is configured having at least two frame parts, a spacing between which can be modified. Several forme cylinders and several transfer cylinders, which cooperate to print a web, are located on each of the at least two frame parts. The distance between the two frame parts is less when the printing unit is closed than it is when the printing unit is open. The printing unit includes at least two web guiding elements. A first tangent is established by a transfer cylinder of a stationary one of the frame parts. A second tangent is established by the at least two web guiding elements. The first tangent and the second tangent are spaced from each other at a distance.

Abstract: A printing tower is comprised of at least two superimposed printing groups and at least two lateral frames A distance between the two lateral frames can be varied in a horizontal direction. Each of these two lateral frames accommodates at least two of the superimposed printing groups. At least one of the two lateral frames can be moved horizontally between a functional position, in which the lateral frames adjoin each other; and an open position in which the two lateral frames are spaced apart from each other. An elevating platform is situated between the two lateral frames when they are in their open position. The elevating platform can be lowered into a bottom resting position so that the two frame sets can be moved into their closed functional position.

Abstract: A drive mechanism for a rotating component of a printing machine uses a drive motor. The drive motor is connected to the rotating component by a coupling and is supported for axial displacement between coupled and uncoupled positions.