HP Latex 210 Printer - Manual (Page 41)

6. Lift the lever in each case to remove both of the stops from the spindle; they will not be used.
7. Load the core onto the take-up reel spindle. The core should be at least as wide as the substrate.
8. Load the take-up reel spindle into the printer by pushing firmly on both ends of the spindle.
ENWW The take-up reel 37
Handle the substrate