Safer PR90 Maintenance Manual page 26

Globalis International
Fig.2-8 Lifting the Upper Mechanical Assembly
－ Push the ribbon guide downwards, make it withdraw from print head.
－ Take out the used ribbon casket
Fig. 2-9 Remove Ribbon Cartridge
Insert the cartridge into the feed gears, hooking it on the two sides and
making sure to insert pin into the related hole of the ribbon feed knob.
PR9 SERVICE MANUAL-VER1.1 Page 26 of 112