Step 1: The Achille's heel
Anyway, the problem with this spindle is that if you happen to have your mind set in your facebook page rather than at the printer, you may end up loading the ribbon the wrong way. -"Sooooo???"- you may think, but the issue is:
1.- It won't print anything since the ink side is facing the printhead and not the label (upside down).
2.- There is a spring inside the spindle that keeps the ribbon properly tensioned, and by now, it spiraled out in such a way that chances are it is deformed, stuck, or both. You may not even be able to remove the ribbon because the spring is in your way.
Headache time! Now you can not finish those labels that you needed yesterday to ship these boxes and on top of that, you need to find and call a technician to rescue you, and not likely for free.
This is worse on those places where there are diverse untrained personnel handling the machine. Looking grim so far, huh?