Method of calculating the dot area rate, quality inspection of printed materials and control equipment and print quality inspection and control method

摘要

PROBLEM TO BE SOLVED: To provide a method for calculating an optimum screen tint percent in a method for controlling printing quality using a screen tint patch.;SOLUTION: An area (TRD) between the tone reduction curve of an OK sheet and the dot reduction curve of printed matter the reproducibility of which is changed by a dot gain is calculated, a solid density value is changed, and a dot percent of minimum TRD is made the optimum dot percent.;COPYRIGHT: (C)2001,JPO