Abstract: A method for operating a printing machine in a print operating mode and another operating mode, for example a maintenance mode. In the print operating mode, bringing a vibrating roller periodically into contact with a first roller of an inking unit, driving the first roller rotationally by a first motor, driving a second roller of the inking unit rotationally by a second motor, transmitting no torque from the first motor to the second roller through a clutch therebetween, and activating the first motor by a control device causing the first roller to rotate at a rotational speed in a constant ratio to a rotational speed of the second roller. In the other operating mode, driving the first and second rollers rotationally by the first motor and transmitting torque from the first motor to the second roller through the clutch. A printing machine for carrying out the method Is also provided.

Abstract: A printing press and a method for controlling a printing press include rotatably mounted cylinders. At least two adjacent cylinders roll on one another through bearer rings. At least one of the adjacent cylinders can be rotated actively relative to at least one of the bearer rings by a setting device.

Abstract: A method of controlling an ink profile in an inking unit of a lithographic offset printing press having printing units with cylinders for transporting printing material or for applying printing ink to the printing material. One of the cylinders is a plate cylinder in the printing unit. An operating speed of the inking unit is reduced in relation to an operating speed of the cylinders for transporting printing material or for applying printing ink to the printing material when the printing press is running and the transport of printing material is switched off. The inking unit continues to operate at a reduced speed and the inking unit is disengaged from the plate cylinder during operation at a reduced speed.

Abstract: A method for operating a printing machine in a print operating mode and another operating mode, for example a maintenance mode. In the print operating mode, bringing a vibrating roller periodically into contact with a first roller of an inking unit, driving the first roller rotationally by a first motor, driving a second roller of the inking unit rotationally by a second motor, transmitting no torque from the first motor to the second roller through a clutch therebetween, and activating the first motor by a control device causing the first roller to rotate at a rotational speed in a constant ratio to a rotational speed of the second roller. In the other operating mode, driving the first and second rollers rotationally by the first motor and transmitting torque from the first motor to the second roller through the clutch. A printing machine for carrying out the method Is also provided.

Abstract: A printing press and a method for controlling a printing press include rotatably mounted cylinders. At least two adjacent cylinders roll on one another through bearer rings. At least one of the adjacent cylinders can be rotated actively relative to at least one of the bearer rings by a setting device.