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If the response of a plate has changed, you can use ColorFlow to update the plate curve that you imported from Harmony. 


Update a imported Harmony plate curve and use the updated curve to output a PDF.

Task 1: Edit the Harmony plate curve in ColorFlow

  1. In ColorFlow, click the Plate Curves tab.
  2. In the Harmony Curves section, select the PLATE XL Euclidean 150 DERIVED curve imported in Activity 1.
  3. Click Copy to Calibration Curve.
  4. Define a new plate curve setup by entering the following:
    • In the Device Type box, select Offset Press
    • In the Plate Type box, select Kodak Thermal Gold
    • In the Screening box, select 20u Staccato or add the value to the list if it doesn't exist:
      • Click the Edit button  
      • Click the Add button 
      • Enter 20u Staccato
    • In the Plate Line box, select Trendsetter or add the value to the list if it doesn't exist
  5. Click OK.
    The curve appears in the Calibration Curve table. Note that the check box of Show in Prinergy Plate Curves is cleared for the original imported Harmony plate curve and is selected for the newly-created plate curve. 
  6. Click the curve.
    A Data panel appears on the right.
  7. Add a custom tint set:
    1. Click Tint Set.
    2. Click the Add button .
    3. Enter 50.
  8. In the Measured Plate Response box, update Dot Area values for each Tint In. In real-life situation, you might need to output an uncalibrated plate containing a plate calibration target in Prinergy and measure the plate response for each tint value. For the purpose of this training, enter 55 to reflect the plates are gaining 5% in the 50%.

  9. Click Apply.
  10. Click Plate Response to display a graph of the measured values.
  11. Click Plate Curve to display a graph of the calibration values that will be applied in Prinergy.

Task 2: Use your updated plate calibration curve to refine and output a page in Prinergy

  1. In Prinergy, create a new job, and name it as XX CF Activity 02 (where XX = your initials).
  2. Refine Chart_TintRamp_CMYK.pdf with 1stRef-Normz.
  3. Output the PDF file using Virtual Proof.LoosePage with one of the plate curves you just imported:
    1. In your Virtual Proof.LoosePage Process template dialog box, from the Output To list, select Virtual Proof.
    2. Leave ColorFLow Color Relationship Management unchecked.
    3. Expand the Calibration & Screening panel.
    4. Select the ColorFlow Current State radio button.
    5. Expand the Plate Curve drop down list and select curve PLATE XL Euclidean 150 DERIVED.
  4. Open the generated page in VPS and measure the 50% black patch. 
    Confirm that the updated plate calibration curve has been applied and the 50% black patch measures 45%. 


You have updated a Harmony plate curve and used it in Prinergy to control the tonal response of a plate.

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