Oki 390 - Manual (Page 62)

ML390/391 Turbo Printer Handbook 55
3. Slide ribbon cartridge along until it is
centered on platen, being careful not to
touch printhead.
Center
printhead
Swing front end
up to remove
4. Swing front-end of cartridge up off
printhead, then lift cartridge out and
discard it.
5. Remove new ribbon cartridge from its
packaging — do NOT remove clear
plastic ribbon shield!
6. Hold ribbon cartridge with knob fac-
ing up and exposed portion of ribbon
facing platen. Place flat end on ribbon
plate, fitting grooves over pins on plate.
Plastic shield
facing platen