Patent ID: 6496678
Filing Date: 2002-12-17
Classification: G03G,H04N

Abstract:
A method of setting registration in a multicolor printing machine (1) having a number of exposure devices (2, 2â€²) for the digital production of color separations (3, 3â€²), the print results being registered and used to control the production of the color separations (3, 3â€²) in such a way that in-register prints are achieved, and a change in dimensions (7, 8, 7â€², 8â€²) of printing substrates (4) being determined by the print, in order to take the change in dimensions into account for renewed printing, wherein changes in the dimensions (7, 8, 7â€², 8â€²) of a recto print (6) from transfer to a printing substrate (4) up to the completion of said recto print (6) are determined and used to control the digital production of color separations (3, 3â€²) for the verso print (5) to be registered on such substrate of said recto print, whereby after being printed, said verso print coincides with said recto print (6) on such substrate.