COLOR SENSOR COUNTERFEIT INK DETECTION

摘要

PROBLEM TO BE SOLVED: To provide a highly reliable counterfeit ink detection device and counterfeit ink detection method.

SOLUTION: The counterfeit ink detection device has a color printer calibrated by determining authentic ink color values for several authentic inks used by the color printer. A multi-color pattern is printed by use of multi-color inks of a print cartridge. A light source outputs light to the color pattern. A color sensor detects light from the light source reflected from the color pattern. A processor processes the detected light to calculate pattern color values for color components of the color pattern, and compares the pattern color values with the authentic ink color values. A counterfeit ink signal is output by the processor if the difference between the pattern color values and the authentic ink color values is greater than a threshold value so as to indicate counterfeit ink.

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