Printronix P5000 Quick Reference Manual page 79

4.
Remove the paper from the tractors to check the paper path and
tractors for jammed or torn paper. Remove any pieces of paper by
turning the vertical position knob.
5.
Check that the ribbon mask has not been deformed in such a way as
to block the paper path. If the ribbon mask is damaged or bent, contact
a Hewlett-Packard Customer Service Engineer.
6.
Gently pull the paper up through the paper slot to get the jammed
paper above the tractors.
Clearing Paper Jams
79