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How to manage colors in a preset?

You can easily manage the colors in the presets of your printers. Assuming you already have a spectro configured, go to Settings > Devices & Presets, select a printer, then a preset. It consists of 3 steps:

  1. Linearization per ink channel
  2. Ink limiting
  3. Profile generation

Here is a closer look at these steps.

 

1. Linearization per ink channel

Enable Linearization to display the action buttons:

Linearization

Linearization combines both:

  • The limitation of each ink channel. For example, the 80% cyan patch can be the new 100% to avoid bleeding and save ink.
  • The linearization of each ink channel, ensuring that the ink delivered corresponds to a linear density to provide a linear gradient.

 

Measure a target

Click the Measure action button to open the Measurement window:

Measurement

  1. Select a previously configured spectrophotometer, an associated preset, and the target to measure.
  2. You can choose to Mirror or Rescale each ink, which can be useful for fine-tuning the ink output to achieve optimal print quality.
    • Mirroring: This option allows you to flip the entire image (the calibration target), which is essential for Direct-to-Film (DTF) printing or when printing in mirror mode for pressing. This ensures that the image is correctly oriented for the final application.
    • Rescaling: Rescaling enables you to modify the ink output levels, which can be particularly helpful in preventing issues like ink dripping. For example, if you rescale the white ink to 80% to stop dripping, it allows for better control over the ink density during printing.

        Info

      Ensure that the rescaling is correctly set before scanning. If you change the linearization to 100% after rescaling to 80%, it may not correspond directly to the original output, potentially leading to ink dripping. Always verify that the scaling settings are applied correctly to the profiling patches to avoid such issues.

  3. Click Print to print the target first.
  4. After the target is printed and dried, make sure the spectrophotometer is connected, then click Measure:
    Measurement window, meassure button.png
     
  5. Measure each line with your device, you will see the progress in the interface.
  6. Finally, the software will give you the best values to linearize.

 

Load a measurement file or a linearization file

Click the Load action button to load an already linearized correction curve or a measurement file.

This is useful if you are using third-party software, or CalderaRIP, to perform the measurement or linearization.

 

View the linearization curves

Click the View action button to see the results of linearization per ink and check the values. 

Linearization

It is possible to view the Measure and the Correction curves. On the Measure curves tab, you can visually check if the maximum percentage of ink in the target is the same as the maximum density.

 

Export a linearization file

Click the Export action button to export a linearization that you can reuse.

 

2. Ink limiting

Limitation per ink channel

With the generated linearization curves, you can select the percentage of maximum ink density per channel to avoid bleeding effects and artifacts caused by too much ink.

 

Global ink limit

Enable Ink limit to display the following parameters.

Global

Global ink limit

Enter a % value to set a limit for all ink channels when they are mixed.

 

Preserve ink

Select Black to maintain color saturation while optimizing ink usage.

 

3. Profile generation

Enable Profile management to display the action buttons and parameters:

Profile

By default, the parameters are those defined in Settings > Color Management. You can overwrite them here, but we recommend not changing them for basic use. If you want to learn more about these parameters, read this article.

Next, see the action buttons in detail.

 

Measure a target

Click the Measure action button to open the Measurement window:

Measurement

  1. Select a previously configured spectrophotometer, an associated preset, the illuminant/observer conditions, and the target to measure.
  2. You can choose to mirror the measurement.
  3. Click Print to print the target first.
  4. After the target is printed and dried, make sure the spectrophotometer is connected, then click Measure.
  5. Measure each line with your device, you will see the progress in the interface.
  6. Finally, the software will generate an ICC profile.

 

Load a measurement file or an ICC profile

Click the Load action button to load an existing ICC profile or a measurement file.

This is useful if you are using third-party software, or CalderaRIP, to perform the measurement.

 

Export an ICC profile

Click the Export action button to export an ICC profile that you can reuse.

 

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