Apple ColorLaserWriter 12/600PS - Manual (Page 254)

If you can’t see or reach the jammed paper, pull the mechanism out for easier
access. After you remove the paper, slide the mechanism back into the printer.
IMPORTANT After you remove the paper, wipe off the rollers with a clean, dry,
lint-free cloth. (This keeps paper dust from accumulating.)
231 Clearing Paper Jams