FUJITSU DL9300 - Manual (Page 151)

User's Manual 6-6
MAINTENANCE
6. Place the two mounting pins on the ribbon support brackets of
the head cartridge. (The two mounting pins are located on the
sides of the ribbon release levers.) Insert the ribbon so that the
ribbon falls between the nose of the print head and the plastic
print guide.
Print guide
7. Press the ribbon release levers until the mounting pins snap
into the holes on the ribbon support brackets. Gently pull on
the cartridge to verify that the pins are securely positioned in
the holes.
8. Turn the ribbon feed knob clockwise to tighten the ribbon.
9. Close the front cover of the printer.
Installing the new ribbon cartridge