The SOAK Test can be done to calibrate the sensors of the Rio Pro in the event that your color panels are not aligning properly.
SOAK Test:
1. Remove the ribbon from the printer
2. Remove all but one blank white card from the rear hopper
3. Hold the “Menu” button down for a few seconds, a Maintenance Menu will appear
4. Select “SOAK Test”
5. Select “SOAK Printer”
6. Allow the “SOAK Test” to run for a couple of minutes
7. Press the leftmost button to cancel once finished
8. Reinsert the ribbon and cards into the printer