Patent ID: 7481165

Claim:
Method for controlling inking in at least one inking unit of an offset press, the inking unit having inking zone actuating elements which control zonal inking of a printing material printed with a subject and measurement regions, wherein the subject comprises inking zones corresponding to respective inking zone actuating elements, each inking zone covering a circumferential strip and having a width, at least one measurement region being measured for each said inking zone, each said measurement region covering a circumferential strip and having a width which is less than the width of the respective said inking zone, said method comprising: measuring inking parameters of said measurement regions; determining actual values based on the measured inking parameters including determining an area coverage value from data from the subject in the circumferential strip covered by the measurement region; comparing the actual values with predefined limiting values to obtain control deviations including comparing the area coverage value to a predefined limiting value; modifying the control deviations on the basis of at least one of a model of the respective inking unit and data from the subject including, when said area coverage value is smaller than said predefined limiting value, modifying the control deviations by at least one of increasing a predefined intended value for the corresponding inking zone actuating element, and reducing the measured actual value; and generating actuating signals for the inking zone actuating elements based on the modified control deviations.