Patent ID: 6925278

Claim:
A process for avoiding compass and/or register errors in a printing machine, comprising the steps of: imprinting marks ( 12 ) on a carrying element ( 1 ); detecting the marks ( 12 ) on the carrying element ( 1 ) with a first sensor ( 8 ), detecting a seam ( 11 ) on the carrying element ( 1 ) with a second sensor ( 7 ); and discarding detected sensor values read by the first sensor ( 8 ) in the area of the seam ( 11 ), that is detected by the second sensor ( 7 ), wherein the area in which the sensor values read by the first sensor ( 8 ) are discarded, is 18.5 mm long upstream of the seam ( 11 ) and 18.5 mm long downstream of the seam ( 11 ), in relation to the direction of travel of the carrying element ( 1 ).