Dell H815DW User Manual page 498

7 Remove the jammed paper.
8 Insert the optional 550-sheet feeder into the printer, and push until it stops.
9 Insert tray1 into the printer, and push until it stops.
10 Insert the MPF into the printer, push until it stops, and close the MPF.
11 Tap OK on the touch panel.
498
Clearing Jams