Patent ID: 8826819

Claim:
A method for controlling inking units having a plurality of zones and/or dampening units in printing presses, the method comprising the following steps: providing a printing press with a computer; calculating reference values dependent on a surface area coverage and/or location based on presetting values with the computer for the inking zones in the inking unit; producing printing material in the printing press and detecting color measuring values on the printing material with a color measuring instrument; calculating deviations of detected color measuring values from the reference values for each inking zone with the computer; storing the calculated deviations as data in the form of curves; comparing, in the computer, the calculated deviations stored as data in the form of curves with stored data in the form of curves corresponding with causes of color problems; and determining, with the computer, causes for color problems in the inking unit and/or dampening unit by comparison between the stored curves of the calculated deviations and the stored curves corresponding to the color problems.