Question edited for clarity.
Not much on clearing jams. You could contact then direct. You will probably need to remove the base. Hit the punches with a centre punch. One thing you could try is spaying the punches and the document with WD40 and leave is overnight. My theory is that it will lubricate the punches and they will pop up. I would also suggest pulling out and tearing all of the sheets from the front one at a time. That will ease the friction.
https://www.google.com/search?q=gbc+111pm+jammed
..
×