Patent ID: 6053107
Filing Date: 2000-04-25
Classification: B41F,B65H

Abstract:
A method of registering a plurality of second printed images with a plurality of preprinted first images on a flexible web in a printing press, the preprinted first images being separated by a repeat length, comprising the steps of:applying a plurality of register marks on the web, the register marks being applied at a predetermined interval,winding the web into a roll,unwinding the web from the roll and advancing the web through a dancer assembly to a means for printing the web, the dancer assembly being the only means for controlling the tension of the web between the roll and the printing means,printing the web at the printing means with a plurality of second printed images while sensing the locations of the register marks, the second printed images being printed at intervals defined by a repeat length,comparing the relative positions of the register marks and the second printed images, andadjusting the dancer assembly to adjust the tension of the web to maintain said relative positions substantially constant.