Patent ID: 7444935

Claim:
A process for adjusting the print image of a rotation printing machine, comprising ink transfer rollers including a plate roller, and actuators assigned to them, with which it is possible to change a position of the rollers, and in which at least one sensor measures and records a value of an intensity of light experiencing an interaction with a printed material and that the recorded measured values are fed to a control and regulation unit, that compares the recorded measured values with set values and that generates corrective signals for the actuator of at least one part of the rollers involved in the printing process based on which the actuator changes a relative position of the roller assigned to it until the measured values once again lie within a tolerance range wherein during the printing process at least one sensor records measurements of the intensity of light experiencing an interaction with the printed material, during the printing operation the measured values are assigned to the ink transferred in at least one inking unit, during the printing operation the control and regulation unit generates corrective signals for the actuator of at least one part of the rollers of the respective inking unit involved in the printing process, such that for a variation in the printing speed, the control and regulation unit generates additional corrective signals based on which the actuators adjust the roller positions in relation to the printing speed, so that the variations in the ink quantity transferred onto a unit of area of the print image remain within a set range, the control and regulation unit determining the additional corrective signals based on stored calibrations that associate a plate roller speed with a plate roller position.