How to Replace a Typewriter Ribbon. Electric typewriters often have cartridge ribbons, whereas manuals have old-fashioned spool ribbons.
Lift the top off the typewriter.
Remove the old ribbon. On a manual, lift the spools out directly. For a cartridge, press the release lever.
Place the new cartridge in the holder and snap down.
For a spool model, place the two spools in the holders.
Thread the ribbon through the wire holding it in front of the roller.
Close the top.
You may be able to reuse an old spool ribbon by flipping it over.
Don't put the red ink side of the ribbon up unless you want to type in red ink.