Patent ID: 6257143
Filing Date: 2001-07-10
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 which performs printing of an image on a printing medium by said first printing and said second printing with predetermined conditions of a dot forming position by using a printing head, said method comprising:a first pattern forming step of forming a plurality of patterns respectively having different area factor of dot formation area by said first and/or second printing using said print head;a first measuring step of measuring respective optical characteristics of said plurality of patterns formed;a function determining step of determining a function showing the relationship between the printing position offset between said first and second printings and the optical characteristics, on the basis of the measured optical characteristics;a second pattern forming step of forming a pattern having a predetermined area factor of dot formation area by said first printing and second printing;a second measuring step of measuring the optical characteristics of the pattern formed by said second pattern formation step; andan adjustment value acquiring step of acquiring an adjustment value of a dot forming position condition between said first printing and said second printing, by applying the optical characteristics measured by said second measuring step to said function.