Method and apparatus for evaluation of the electrically conductive printed structures and printing machine comprising such a device

The invention relates to a method for the evaluation of the electrically conductive printed patterns, and means, in particular for carrying out such a method, and a printing machine comprising such a device. The invention provides for the printing of electrically conductive structures such. B. of transistors, for the production of electronic circuits and in a LINLINE conductivity test, preferably transversely to the direction of the current through the printing machine sheet material using one or more measuring rolls in front of which is provided with spaced ring electrodes to measure the electrical resistance or even to a short-circuit resistance in contact with the printed electrically conductive structure. The measurement signals are transmitted wirelessly to a receiver device and can also be used in a closed control loop for influencing the pressure parameter and the control technology of the printing press.