Malcolm - A New Partner in Graphic Art Quality Control

Driven by a need for a new versatile system for quality control in graphic arts the Malcolm concept has been developed. The basis for the Malcolm concept is a new method for analysis and control of color. The printed result on paper is stripped color by color into different pictures in e.g. a 4-color print. The color classification is made by artificial neural net algorithms. These pictures, now in a digital form, can then be used for calculations of different properties of the printed result for each one of the separate printing cylinders. In an application specially designed for work in the printing plant a new measure is introduced which expresses a measure directly related to each one of the very inks used in the press. The measurement can be made in an almost arbitrary part of a picture. One advantage with this concept is that the corrections for the values for each color which are needed for the optimal result can be directly related to adjustments necessary on the press.