> For the complete documentation index, see [llms.txt](https://docs.coraye.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coraye.com/quality-control/untitled-1.md).

# Create a reference from a printed chart

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**In drafting process**
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In this tutorial we will create a "Print Control .pctrl" file from the measurement of an ECI2002R test pattern supplied by Coraye.

### Selection of the reference range

The chart offered by Coraye are available in the form of a color table in the profile creation module (Characterization).

Click on the "**Create Profile**" icon at the top left, then click on the "**Create a characterization**" button

![](/files/-MHbUMvmQt4Jn3jV8z65)

Since we have chosen to carry out the control on an ECI2002R CMYK chart, we will look for it among the CMYK ranges \
Click on "CMYK"

![](/files/-MHbUPxfkhQ_qFuVx3EV)

Click on the "Choose reference" button corresponding to the ECI2002R test pattern of 1485 patches.

![](/files/-MHbUTtOaQFcdeMMwh-4)

When the pattern is displayed, click on the export button located at the bottom of the pattern and select the option "**Export to table**"

![](/files/-MHbUXzXZCEVExTL4KPK)

Save the .table file to a folder for easy retrieval.

![](/files/-MHbUaBwJrcwF_UayV8o)

### Creation of the Print Control file

Import the .table file you just saved so that it appears in the left column.

![](/files/-MHeDzSnCRIZw8xR3CBm)

Click "**Print control**" located at the top left, then on the "**Create a reference**" button.

![](/files/-MHbUd1jx8G0wthLFL79)

Select "CMYK".

![](/files/-MHbUfs6B-BLQKhV8LG_)

Drag the "ECI2002R" table into the "**Drag a color table here**" box.

![](/files/-MHbUifP9xXDq9BTntSV)

The ECI2002R chart appears in the window.

{% hint style="info" %}
At this step, the pattern format can be modified using the tools to the right of "**Edit target format**".
{% endhint %}

Click on the export button (located at the bottom of the test chart), to export the test pattern in Tiff or Pdf format.

![](/files/-MIFXzpkA7i4VQ51RGwl)

Save the files in a folder to print them later.

{% hint style="info" %}
The number of files will depend on the number of patches and the layout.
{% endhint %}

![](/files/-MHbUtCEwQnr51efdsil)

### Measurement of the reference chart

Once the reference targets have been printed, we will be able to start the reading by clicking on the "**Start Reading**" button.

![](/files/-MIF_YM3-oV1FFbY9Fws)

Position the spectrophotometer in its calibration position Then click on the "**Start calibration**" button

![](/files/-MBmacetMFAnXH6pkv2I)

![](/files/-MIF_bQ0SguiXC8hWYNL)

Once the calibration is complete, start measuring the chart. The blue arrows will show you which line to measure.

{% hint style="info" %}
At this stage, it is possible to measure the chart several times or to measure several charts to average the readings. Just click on the "**+ reading**" button to define the number of readings you want to take.
{% endhint %}

{% hint style="info" %}
If the measurements have already been saved in .table format, it is possible to drag / drop them into the Reading # 1, Reading # 2, etc
{% endhint %}

![](/files/-MIF_z7Jom_tIi4nSJ76)

When you have finished reading the charter, click on the "**Reading done**" button

![](/files/-MIFXAo35nMKFslmv7Il)

In the information window, only the name of the setting is mandatory. All other information is optional.

![](/files/-MIFamkX7wCEz30SHkOo)

Once you have finished entering the information associated with your test pattern, click on "**Save and exit**".

![](/files/-MIFd07EDDtuAKiVBdZQ)

The "Print Control .pctrl" file will appear in the left column.

![](/files/-MIFb9Iy58zeS5RQ6v7P)

Once the reference has been created, remember to save it by right-clicking on the Print Control file, then selecting the "**Export**" option

![](/files/-MIFcTN8XBn9Co0iJaSM)

The next step will be the measurement of the charters to be checked.

![](/files/-MIFcOQOwdtw-eY0jDm0)