Consumables and accessories > 707. Remove the new ribbon cartridge from its wrapping and note the position of theRibbon Guide (1), Knob (2) and Pin (3).8. In the direction indicated by the arrows, insert the pins at both ends of the ribboncartridge (1) into the U grooves (2) in the printer until the ribbon cartridge is fullylocked.NOTEIt may be easier to mount the ribbon cartridge in place if you align it with thetopside of the grooves. Also, a slightly loose ribbon may make it easier tomount the ribbon cartridge.123212