Patent ID: 8814344
Filing Date: 2014-08-26
Classification: B41J,B41M,C09D

Abstract:
1. A method useful in printing comprising: applying one or more ultraviolet inks to a substrate to form an uncured image; determining, with a processor, a color of the uncured image formed on the substrate; exposing the uncured image formed on the substrate to ultraviolet light produced by an ultraviolet curing station to cause the one or more ultraviolet inks to change color to form a curing indication image on the substrate; determining, with the processor, a color of the curing indication image on the substrate; comparing the determined color of the curing indication image on the substrate with the determined color of the uncured image on the substrate to determine an amount of ultraviolet radiation absorbed by the curing indication image; determining a target amount of ultraviolet radiation absorption for the curing indication image; comparing, with the processor, the determined amount of ultraviolet radiation absorbed by the curing indication image with the determined target amount of ultraviolet radiation absorption for the curing indication image; determining, with the processor, an intensity of the ultraviolet light produced by the ultraviolet light curing station associated with the determined amount of ultraviolet radiation absorbed by the curing indication image; and adjusting, with the processor, the intensity of the ultraviolet light produced by the ultraviolet light curing station to cause an amount of ultraviolet radiation absorbed by another curing indication image to match the target amount of ultraviolet radiation absorption for the curing indication image, the adjusting being based on a selectively controlled percentage of the determined intensity.