Paxar Monarch 9855 Operator's Handbook Manual page 23

10. Close the printhead by pressing down on the thumb well until
you hear it click into place.
Thumb Well
11. Close the cover.
12. Press Feed/Cut to position the supply under the printhead.
You may need to adjust the wide/narrow knobs depending on
the width of your supply. See "Adjusting the Wide/Narrow
Knobs" for more information.
If the printer will be unused for extended
periods of time, we recommend leaving the
printhead unlatched.
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