5 Gently lift the printer off the optional 550-sheet feeder, and place it on a level surface.
Two people are required to lift the printer.
6 Insert the tray1 into the printer, and push until it stops.
Do not use excessive force on the tray. Doing so could damage the tray or the inside of the printer.
7 Re-connect all cables into the back of the printer and turn on the printer.