- 84 -6. Troubleshooting3 Check for jammed paper in the duplex unit. If jammed paper remains, pull itout gently. Check the back side of the duplex unit and remove jammed papergently if it remains.4 Open the upper duplex unit cover (2) and check for jammed paper. If jammedpaper remains, pull it out gently and close the cover.5 Replace the duplex unit (1) into the machine.Task is complete.A paper jam has occurred around the front cover.1 Insert your finger into the recess on the right side of the machine and pull thefront cover open lever (1) to open the front cover (2) forward.2 Remove the jammed paper gently in the direction of the arrow if an edge ofjammed paper can be seen, and then go to step 8. If you cannot find jammedpaper, go to step 3.Error Code "372"