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Control a charter

In this tutorial, we will learn how to control an IT8 type chart by measuring the lines in one or more times.

The control of a large chart can be useful in the following cases:
- More in-depth quality control of your prints
- Verification of charts intended for the creation of a profile to characterize an offset machine.

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Importing the Print Control file

To control a large chart, it is first necessary to import the Print Control file created previously in the " Creating a reference from ... " chapters:

Then select the Print Control file and right click to select the " Start Control " option.

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The range used when creating the Print Control file is displayed.
It is possible, at this stage, to modify the format of the test chart in order to print it.

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To find out more, see the chapter:  Customizing charts

Printing of the charter

If the chart is not already printed, export it in Tiff or Pdf format to print it.

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Charter measurement

Once the chart (s) have been printed, let them rest before starting to read.
To start the measurements, click on the " Start measurement " button

Print Control Read.png

Select the reading and calibration mode, then click on " I'm ready "

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Position the spectrophotometer in its calibration position

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Then click on the " Start calibration " button

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Multiple measurements

At this step, it is possible to define the number of measurements carried out per line by clicking on the " + reading "
button. This is in order to detect reading errors or to average the measurements for greater precision.

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Then start reading the charter.

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Measure the line framed by the 2 blue cursors

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Hovering over the measured patches will show you the values of Delta E, H and Ch

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When the staff is completely measured, click on the " Reading done " button.

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Viewing Reading Report

The measurement report is displayed.

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If you wish to measure other ranges, right click on the Print Control file then click on the " Start measurement " button.
Each new measurement will be added to the "Print Control" file and can be viewed later.

To find out more, see the chapter: Carry out a check

 

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