Method for adjusting crop mark of web rotary press, involves detecting actual position of crop mark by theme, where crop mark actual position is compared with crop mark reference position

摘要

The method involves detecting an actual position of the pattern by a theme. The crop mark actual position is compared with a crop mark reference position. A crop mark error is estimated depending on detected, determined or predetermined variables. The position deviation or the adjustment of the crop mark is corrected by the estimated additional crop mark errors. An independent claim is included for a web rotary press.