Datamax PE Operator's Manual page 26

Removal of a Completely Used Ribbon
Complete the following steps to remove a completely used ribbon:
Unlatch and raise the printhead.
Rotate the Ribbon Take-up Hub, winding it until the ribbon
clears the media path.
Rotate the J-Hook, unlatch and remove.
Grasp the roll of used ribbon and pull it straight off of the
Ribbon Take-up Hub and discard.
Supply
Take-Up
16
Pull the empty ribbon supply core from the Ribbon
Hub. Save the core for later use on the Ribbon
Hub or discard.
PE Series Operator's Manual