Patent ID: 7040233

Claim:
A method for controlling drive units of a printing press including: providing at least first and second printing groups and locating them successively in a web conveying direction; providing at least one drive unit for each of said at least first and second printing groups; passing a web through said at least first and second printing groups during a printing process; sensing a value of said web which affects the printing process; controlling said drive units in response to said web value; determining at least said web value of a fresh web to be used in said printing process prior to performing a web change; using said at least one fresh web value and determining a deviation of said fresh web value affecting said printing process from said web value prior to performing said web change; and controlling at least one of said drive units in response to said deviation of said value affecting said printing process at least coincidentally with the entry of a start of said fresh web into a second one of said at least first and second printing groups.