Patent ID: 6647874
Filing Date: 2003-11-18
Classification: B41F,B41P,B65H

Abstract:
A process for register coordinating cylinders of a web-fed rotary printing press, the process comprising the steps of:providing a web; printing on one side of said web with a first cylinder print group; driving said first cylinder print group with a first motor; printing on said one side of said web with a second cylinder print group; driving said second cylinder print group with a second motor; sensing a registry of said first and second cylinder print groups and generating a registration signal; providing a controller for coordinating an angular position of said second cylinder print group in register with said fist cylinder print group according to one of a plurality of control characteristics, said controller receiving said registration signal and actuating one of said motors; changing a production condition from a first production condition to a second production condition; detecting said second production condition; changing said one of said control characteristics to another said control characteristic based on said second production condition; said control characteristics including a controller parameter based on one of a production-specific parameter basic value kP Basis, kD Basis, kI Basis, and kf Basis where said controller is a PID controller.