Patent ID: 6429945
Filing Date: 2002-08-06
Classification: B41F

Abstract:
Method for image position correction in printing on a printing material, wherein the printing material is traveling along a travel path through a printing machine by means of a transporting arrangement, and wherein a positioning device is provided for aligning distances and parallelities of a printed image in relation to the edges of the printing material, the method which comprises the steps of:generating by means of at least one image pickup device disposed in the travel path of the printing material image signals from the entire printing material and the printed image of at least one surface of the printing material, wherein the image signals contain information pertaining to the distances and parallelity of the printed image in relation to the edges of the printed material; transmitting the image signals to a steering- or control device; comparing the image signals with pre-entered nominal values in the steering- or control device; and adjusting the printed image with the steering- or control device by means of the image signals applied to the positioning device so as to attain alignment of the printed image in relation to the distances from and parallelity with the edges of the printing material.