Patent ID: 6999200
Filing Date: 2006-02-14
Classification: B41F,B41M,B41P

Abstract:
1. A method of managing print colors in a process for carrying out printing while using a printing press, said printing press including plate generating mechanisms for recording a printing plate on the basis of image data obtained by subjecting multi-value image data to RIP and printing mechanisms for carrying out printing by supplying ink on said printing plate, said method comprising: a step of determining a first printing condition including at least one of an ink kind condition and a condition of a kind of a printing medium used in said printing mechanisms; a recording step of recording a color chart on a printing plate while using said plate generating mechanisms; a printing step of adjusting a second printing condition including at least one of a condition of the amount of said ink and a condition of the amount of damping water, and printing said color chart on a printing medium in accordance with said first printing condition while using said printing mechanisms; an image pickup step of picking up an image of said printing medium which is transported with its leading edge being pinched and its rear edge being sucked; a detecting step of detecting a print color on said color chart on said printing medium from image data obtained by the image pickup step; a profile data generating step of generating profile data in accordance with characteristics of both of said plate generating mechanisms and said printing mechanisms of said printing press based upon said print color; and a profile data storage step of storing said profile data in association with both of said first and second printing conditions, wherein, when a printing process is newly carried out using said printing press in accordance with said first printing condition, a color correction prior to a RIP process is carried out on multi-value image data with reference to said profile data, and at least one of said condition of the amount of said ink and said condition of the amount of said damping water is adjusted in accordance with said second printing condition in association with said profile data.