Patent ID: 6018385
Filing Date: 2000-01-25
Classification: B41F,G01J

Abstract:
A measuring system for registering reflectances from a measurement field on printed material, the measuring system comprising: a measuring head having a (1) densitometer with at least one illumination channel for producing a scanning spot at a point and a plurality of scanning channels for registering the reflectances of the spot, the scanning channels registering ink density values and calorimetric values (2) and a spectrophotometer that produces a further scanning spot on the printed material, the densitometer and the spectrophotometer mounted in the head one behind the other such that their scanning spots are spaced apart from each other by a distance (x) in a scanning direction (X) of the measuring head; an evaluation electronics connected downstream of the densitometer and the spectrophotometer for processing the measured values collected by the densitometer and in response thereto triggering the spectrophotometer.