Intermec PF8T - Manual (Page 37)

Chapter 2 — Installing the Printer
24 PF8d/PF8t Printers User’s Guide
Loading Thermal Transfer Ribbon (PF8t Only)
Thermal transfer ribbons are required when you print on thermal
transfer (non-heat sensitive) media. The type of transfer ribbon
you use should match the face materials of the media to obtain
the best durability and print quality.
To load a fresh ribbon roll
1 Press the cover open buttons on both sides of the case to open
the top cover. Fold the cover upwards/rearwards.
2 Press the green release tabs at the bottom of the top cover on
both sides of the printhead.