Patent ID: 6464319
Filing Date: 2002-10-15
Classification: B41J

Abstract:
A printing registration method for performing printing registration in a first printing and a second printing with respect to a printing apparatus for printing an image on a printing medium by the first printing and the second printing with predetermined conditions of dot forming positions by using a print head, in which a dot can be changed in at least two kinds of large and small sizes, said method comprising the steps of:forming a plurality of patterns according to a plurality of shifting amounts of relative printing positions between the first printing and the second printing by controlling the print head, the pattern being formed with at least either one of the large and small dots by the first printing and the second printing; acquiring an adjustment value of a dot forming position condition between the first printing and the second printing on the basis of the shifting amounts of the relative printing positions among the plurality of formed patterns; and correcting the adjustment value according to an offset amount of the forming position caused by printing operation by the first printing and the second printing with at least the other of the large and small dots.