Patent ID: 7497163
Filing Date: 2009-03-03
Classification: B41F,B41P

Abstract:
1. A printing unit of a printing press, comprising: a forme cylinder configured to receive a printing plate, a transfer cylinder and an inking unit, a drive configured to rotate the forme cylinder to a suitable position to effect a printing-plate change on the forme cylinder, and a regulating or control device connected to the drive to supply an actuating signal to the drive to rotate the forme cylinder into the suitable position, wherein the regulating or control device is arranged to receive a circumferential register offset value of the forme cylinder as an input variable, the actuating signal being determined as a function of the circumferential register offset value, and wherein the regulating device or control device determines an intermediate actuation signal independent of the circumferential register offset value, and combines in a calculation the intermediate actuating signal with the circumferential register offset value.