If your Evolis Dualys caution light is staying on and the printer will not print, here is what you should do.
1. Check that the printer is plugged in correctly and the power button is lit up.
2. Check to make sure that the exit hopper tray is pulled all the way out and snapped into the correct place.
3. Unplug the power source and wait 10 seconds.
4. Plug the printer back into the power and check to see if the warning light has gone off.
The steps above should allow your Evolis Dualys to begin printing again.