Activity 5: Use a print curve to match a legacy workflow calibration curve

Background

If you are migrating from another workflow, such as Rampage, you may want to create a print calibration curve based on your legacy curve from Rampage.

This activity is to create a  print calibration curve by entering the tint values from an existing curve.

Tasks

Goal
Create a custom CMYK device condition using a set of tint value data and use it as the target for your print calibration curve.

Task 1: Create a custom device condition

1. Click the Device Conditions tab.
2. Click the Add button .
3. In the Device dialog box, add a new device: 
   1. In the Device Name box, enter XX legacy device condition (where XX= your initials).
   2. From the Device Type list, choose Offset Press-Sheetfed.
   3. Click Create.
   4. Drag the device you just created to the viewer window.
4. Click the Properties icon  and define the device condition:
   
   1. From the Plate Setup list, choose Kodak Electra Excel, 200, Offset Press Sheetfed.
   2. From the Substrate list, choose Type 1 or 2 (coated art) 170 g/m2.
   3. In the Other section, click the Edit button .
   4. Click the Add button  and enter Legacy Measurements.
   5. Click OK.
5. Create a Tint Ramp chart:
1. Click the Measurement icon .
2. In the Charts section, click the Add button .
   A chart appears in the Charts list with a default name.
3. From the Chart Type list, choose Tint Ramp.
4. From the Measurement Device list, select Other.
5. In the Tint Set section, click the Edit button .
6. Click the Add button  and enter 0 10 25 50 75 90 100.
7. Click OK.
8. Click Save.
6. Enter the measurement value:
1. Click Measure.
   In the dialog box that appeared, keep the default value and click OK.
2. Click Enter manually.
3. In the Channels Binding section, click C, M, Y, K Same.

7. In the Tonal Response section, enter the following EDA values:

   Tint in	EDA
   0	0
   10	8
   25	20
   50	44
   75	70
   90	87
   100	100

8. Click OK and close the Device Measurements dialog box.
9. In the Device Condition list table, find the device condition you just created and select the Show in Target Lists check box.

Task 2: Create the print calibration curve

1. In ColorFlow, click the Print Curves tab.
2. In the Calibration Curves section, click the Add button .
   The Device dialog box appears.
3. Drag XX legacy device condition to the viewer window.
4. Click the Properties icon  and define the device condition:
1. From the Plate Setup list, choose Kodak Electra Excel, 200, Offset Press Sheetfed.
2. From the Substrate list, choose Type 1 or 2 (coated art) 170 g/m2.
3. Click OK.
5. Make a linear tonal response for your device:
   1. Click the Measurement icon .
   2. In the Charts section, click the Add button .
      A chart appears in the Charts list with a default name.
   3. From the Chart Type list, choose Tint Ramp.
   4. From the Measurement Device list, select Other.
   5. From the Process Ink Set list, choose CMYK.
   6. Click Save.
   7. Click Measure.
   8. In the Channel Binding section, click C, M, Y, K Same.
   9. Click OK.
6. Define the conversion target:
1. Click the Conversion icon . 
2. Select the Show curves in Prinergy check box.
3. Click the Process Inks tab and choose the print condition that you just created from the Target list.
4. From the Curves Method list, choose Tonal Match.
5. Click OK.
   A print calibration curve is generated to match your legacy print calibration curve.
7. In the Calibration Curves table list, double-click the name of the curve that you just created and enter XX legacy curve for tonal match (where xx= your initials).

Task 3: Output a job using the newly created print calibration curve

1. In Prinergy, create a new job, and name it as XX legacy curve tonal match (where XX = your initials).
2. Refine Chart_TintRamp_CMYK.pdf with 1stRef-Normz.
3. Output the PDF file using Virtual Proof.LoosePage with the print curve you just created:
1. In your Virtual Proof.LoosePage Process template dialog box, from the Output To list, choose Virtual Proof.
2. Leave ColorFLow Color Relationship Management unchecked.
3. Expand the Calibration & Screening panel.
4. Click the ColorFlow Current State radio button.
5. Expand the Print Curve drop down list and select curve XX legacy curve tonal match .
4. Open the generated page in VPS and measure the 10%, 50%,and 90% black patch. 
   Confirm that the plate calibration curve has been applied: 10% measures 8; 50% measures 44; 90% measures 86.6.

Outcome

You have created a print calibration curve based on your legacy curve from Rampage.