Patent ID: 6456311
Filing Date: 2002-09-24
Classification: B41F,G03G

Abstract:
A method for registration of print separations in a printer comprising:(a) printing a first pattern, for which at least one image characteristic varies with misregistration in either direction of misregistration to a first degree, using said at least one first and second separations; (b) printing a second pattern, for which said at least one image characteristic varies with misregistration, in either direction of misregistration, to a second degree, using at least one of the first and second separations, said second degree being smaller in both directions, than said first degree, or zero; (c) determining said at least one image characteristic for the first and second patterns; and (d) correcting the mutual registration of said at least one first and second separations responsive to a difference in the determined at least one image characteristic for the first and second patterns.