5.Place the black ribbon cartridge on the ribbon cartridge holder. The easiest method is to tilt the back of the cartridge so that it slides into the area of the plate that is nearest the front of the printer, then lower the top of the cartridge (where the plastic ribbon shield is located) over the print head. The tabs on both sides of the cartridge should align perfectly with the inserts on the print head plate.
Important: Only use genuine OKI ribbon cartridges in your printer. Do not remove the ribbon shield.
Ribbon cartridge
Ribbon shield
Holding position
Print head
Ribbon cartridge holder
Column indicator
Ribbon shield