Abstract: A method for operating a printing machine having a positioning device with a cylinder that is adjustable into different positions along an adjustment path and cooperating with a cylinder for guiding printing material, which includes performing at least two of the following method steps of adjusting the rotational angle of the cylinder guiding the printing material into a given position; adjusting the rotational angle of the cylinder that is adjustable along the adjustment path into a given position; adjusting the circumferential register of the cylinder that is adjustable along the adjustment path; and adjusting the cylinder that is adjustable along the adjustment path, from a first cylinder position into a second cylinder position along the adjustment path.

Abstract: A device for locking a carrier carrying a cylinder in a printing machine, the cylinder being rotatably mounted in the carrier, and a pivoting lever by which the carrier is lockable to a frame, includes a pivot bearing about which the locked pivoting lever is pivotable while the locking action is maintained; and a printing machine including the locking device.

Abstract: A device for selectively positioning at least one cylinder in a printing machine, the cylinder being rotatably mounted in a carrier and, together with the carrier, forming a unit that is adjustable into different positions, includes a pull mechanism drive for adjusting one of the cylinder and the unit into the different positions, the pull mechanism drive including a pull mechanism, the unit being held on and suspended from the pull mechanism.