Top Page > Troubleshooting: TCRU/ORU > Post-Processing Option Troubleshooting > Finisher SR5050/Booklet Finisher SR5060 > Jam code J122 appears when envelopes are delivered > Solution:
Attach the Z-fold support tray to the finisher shift tray.
Attach the Z-fold support tray by inserting the two protrusions on its underside into the holes on the finisher shift tray.