| http://www.w3.org/ns/prov#value | - he ink color of a color printer in which a color patch is also printed on a print in order to identify the ink color, the apparatus comprising at least one light irradiation means for directing light at a specific angle to a specific irradiation area in the passing zone of a color patch on a moving print, a spectral unit including a spectral sensor and an optical system for measuring the spectral
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