Paxar 9856 Operator's Handbook Manual page 14

4. Thread the supply under the bouncer assembly and between the upper
and lower supply guides. Feed the supply until it exits the printhead
assembly through the front slot.
5.
Lower the printhead and close the printhead latch. Rotate the printhead
latch wing clockwise and snap it down to lock the printhead into position.
Printhead
Latch
Tear Bar
Lower Supply
Guide
6. Close the side access cover.
You may need to feed several labels to align the supply correctly.
2-2 Loading Supplies
Upper Supply
Guide
Roll Supply
Bouncer
Assembly
Supply Hub
Fan-fold