Monarch Paxar 9450 RASCAL Operator's Handbook Manual page 19

3. Squeeze the tabs on both sides of the support frame and
pull it open.
4. Insert the leading edge of the supply into the supply guide
while dropping the supply roll into the supply well. Push
the supply against the back of the well. Use your finger to
push the supply through the supply chute.
Chapter 2. Loading Supplies
Support
Frame
Tabs
Supply
Guide
Leading
Edge of
Supply
Supply
Well
2-3