Patent ID: 6474767
Filing Date: 2002-11-05
Classification: B41J

Abstract:
A printing registration method for processing for performing printing registration in a first printing and a second printing with a printing apparatus for performing printing of an image by the first printing and the second printing with predetermined conditions of a dot forming position on a printing medium by using a printing head, said method comprising the steps of:pattern-forming for controlling the printing head to form a plurality of patterns having optical characteristics corresponding to a plurality of shifting amounts, the plurality of patterns being formed corresponding to the plurality of shifting amounts of relative printing positions of the first printing and the second printing, the patterns being formed by the first printing and the second printing; measuring, by an optical sensor, optical characteristics of the plurality of patterns formed; calibrating an optical sensor being used in order to perform the measurement, wherein said calibrating step includes forming patterns for performing the calibration; and acquiring an adjustment value of a dot forming position condition between the first printing and the second printing on the basis of optical characteristics of the plurality of patterns measured.