Patent ID: 7219606

Claim:
A method for measuring, setting and controlling longitudinal and lateral register as well as parallelness of a printing register in a multicolor printing machine comprising a plurality of printing units each printing unit having an adjustable feed roller for correcting print image parallelness, the method comprising: sensing, at a first position of a print web located before a last print unit, a first plurality of register marks for determining a first set of data on a register deviation in a circumferential and a lateral direction of each printing unit; using the first set of data for automatically controlling the printing register in the circumferential and lateral direction; sensing, at a second position located after a last print unit, a second plurality of register point marks for determining a second set of data on the parallelness of the print images among one another; and using the first and second sets of data obtained for automatically controlling the printing register in lateral and circumferential direction and for controlling print parallelness, respectively.