Technical data
Densitometric functions
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4
4.4 – 4.4.1
4.4 Density difference
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Select paper white or absolute white base under Settings k Measurement parameters k
White base.
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For density difference measurements, it is necessary to measure or enter reference values.
Preset tolerance values can be overwritten. Four jobs with four to eight references each can
be defined. The names of the jobs can be freely selected under Settings
k Jobs. The names
of the references one to four are preset; the names of the references five to eight can be
freely selected under Settings k Reference k Reference input or in the density difference
function under Reference input.
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Use the references black, cyan, magenta, yellow for the corresponding process-colors and the
other references for special-colors. If there are 5 or more references defined in a job, you can
define the assignment of the references.
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4.4.1 Procedure if reference values have to be entered first:
• Select the menu line Density difference by turning the <Control ball>.
• Activate the selected function by pressing the <Measurement key>.
• Select the menu line Reference input by turning the <Control ball>.
• Activate the reference entry by pressing the <Measurement key>.
• Select the menu line Measure paper white by turning the <Control ball>.
• Position the measuring aperture on the paper white and initiate a measurement by pressing the
<Measurement key>.
• The display White measurement done is shown for about 1 second.
• Select the menu line Measure color by turning the <Control ball>.