Great question! On the LOKLIK DTF printer, the dampers sit right above the printhead and checking them is mostly a visual inspection to make sure each one is fully seated and has ink flowing into it.
Here’s how you can check them:
How to check your dampers
• Open the top cover and look for the small rectangular cartridges sitting on top of the printhead — those are your dampers.
• Each damper should be firmly clicked into place. If one is loose, that color won’t pull ink.
• You should also see ink inside each damper. If one looks empty or has a big air gap, that channel may need priming.
Here’s a link that might help you locate your dampers. 