Printronix Series 5 - Manual (Page 29)

2–18 Setting Up the Printer
5. Thread the ribbon around the ribbon guide and along the ribbon path. Refer
to the ribbon path diagram on the shuttle cover. Be sure to thread the ribbon
between the hammer bank cover and the ribbon mask.
6. Place the empty spool on the left hub. Press the spool down until the hub
latch snaps into place. Turn the spool by hand to make sure the ribbon tracks
correctly in the ribbon path and ribbon guides.