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Manual TECHKON SpectroDens
InkCheck
The measurement function
InkCheck
combines in a very easy way the advantages of
colorimetry with the familiar densitometry. Thanks to this helpful function, working
with the process standard ISO 12647 is simply achieved. The colorimetric deviations
are reported and additionally recommendations for amounts of ink supplied in terms
of density values are given.
In contrast to the measurement function ISO-Check (see p. 63) the measurement
function InkCheck is not only able to check the CMYK print ink, but also spot colors,
provided that the appropriate spot colors were chosen as references in advance. In ad-
dition to the color books which are included in the contents of delivery, for example
the HKS-color books, you can create your own color books for spot colors and use
them as a reference.
The recommendations for amounts of ink supplied in terms of density values for spot
colors are based on CIE L*a*b* measurements.
First, a color book which holds the reference
color data has to be selected in the reference
menu. The reference values for the 5 paper
classes defined in the ISO standard are pre-set
in the device memory. The data set “Proof” is
for measurements on white backing and the
data set “Print” for measurements on black
backing.
Notice: If they can not be found in the device
memory, they can be uploaded with the Win-
dows software SpectroConnect.
First, a calibration on paper white has to be
made. Position the device on the paper white
and confirm the request to measure the pa-
per white by pressing the green measure-
ment button.
