OPTICAL RECOGNITION CODE MARKING METHOD AND DEVICE, AND RELATED METHOD AND RELATED DEVICE

摘要

A multiple-color coupler agent is attached to a print subject material. After the multiple-color coupler agent is attached to the print subject material, a coloration inducing stimulus, such as a laser light stimulus, for example, is given to a coloring target position on the multi-color coupler agent. A coloration inducing control means (computer) controls a position alignment of a color induced by the coloration inducing stimulus (laser light stimulus) and the coloring target position. The coloration inducing control means seeks an optical recognition code based on information desired to express and gives the multiple-color coupler agent a corresponding stimulus sequentially based on a color of the optical identification code. This way can make a predetermined color arrangement based on the color of the optical recognition code desired to attach emerge on the multiple-color coupler agent.