Calibration & Profile with White Ink using “Legacy modes"

Calibration & Profile with White Ink using “Legacy modes"

Problem/Question
“How to do a Calibration & Profiling with  White Ink underlay, using  Legacy Modes"

Solution/Work-Around
In order to do a Calibration & Profile with the White Ink underlay, there is a need to define how we want to manage the white channel. In this case, we are going to use it with "Legacy Modes". 
The process will be divided into different phases:
  1. Set the White Channel in Print Environment
  2. Color Calibration
  3. Management of Max value of White and Color Channels
  4. Profiling

A. Set the White Channel in Print Environment
  1. Open the "Print Settings" from your Print Environment
  2. Go to "Printing Ink Assignment"
  3. Select your "Spot Color White" Channel
  4. Click on the "Settings" button 
  5. Check the option "Exclude from Density"
  6. And check the option "Use density from black Channel" or "Use default density"
  7. Click "OK" to apply and save.

B. Color Calibration
  1. Navigate to "Tools" > "Application Defaults" > "Spectrophotometer"
  2. Check the option “Automatically underlay colors with white”
  3. Click “OK” to save and close
  4. Navigate to "Tools" > "Linearization & Profile Tools" > "Density Linearization"
  5. Proceed as normal
Important Note
When Calibrating Color over White there is a high chance, that the amount of white ink and color need to be optimized. This optimization can be worked to a certain extent in Ergosoft, limiting the White and Color channels to a max value, where both work well.


C. Management of Max value of White and Color Channels

White Chanel Max Value
  1. Open the Print Environment settings
  2. Select Printing Ink Assignment
  3. Open the White Channel settings
  4. Check the option “Legacy Options” 
  5. The option “Generate Density” now is available
  6. Set the Max (%) value you pretend for the White Channel
  7. Click “Ok” to save and close

Color Channels Max Value

When Printing the first chart for the Calibration you will be able to see how the Color reacts over the white.
In case the Colors Channels need to be reduced from the First step, please use the tool below.
  1.  Navigate to "Tools" > "Linearization & Profile Tools" > "Density Linearization"
  2. After printing the first chart, select the option “Resolve Problems”, at the bottom.
  3.  Focus on the section "Problems due to ink bleeding, pooling or flaking”
  4.  Select the channel you want to reduce and set the patch number that should be the new limit.
  5. Click “OK” to apply and save
  6. Back in the Density Linearization panel, click "Print" to print the chart with new limits and proceed to measure
Important note
Those procedures are intended to be done in the first chart of the Calibration.
After you limit your inks channel correctly. Please, proceed with Density Linearization as normally.

D. Profiling
The profiling should be processed, as usual, there are no extra steps to be done.


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