And hear the main mechanical assembly. The little gantry has a stepper driving the cutting knife with solenoid operated lift. You can see that the upper roller is not at all where it should be.
And here is the repair awaiting some springs. A little work with a dremel and a piece of piano wire were all that was required. The bearing seems to be retained well enough so I just left it. I did however end up stiffening it all up a little with some hot glue. Yep, dremel and hot glue, classy.
The unit needs a 16v supply, 16V!! Typical. It also needs a strange din connector to connect to the PC.