Sharp UX-460 Operation Manual page 21

Loading the Imaging Film
6
Remove the new roll of imaging film from its packaging.
Do not yet remove the band that holds the rolls together.
7
Insert the large gear into the green end of the empty spool. Make
sure the two protrusions on the large gear fit firmly into the slots in
the end of the spool.
Insert the remaining three gears into the spools, making sure the
protrusion on each gear fits firmly into one of the slots in the end of
each spool.
If needed, pull the spools apart slightly to allow the gears to fit (the
band will stretch).
Protrusion
Slot
Large gear
19