Turn off the main power switch of the copier and unplug the power cord before you start the installation procedure.
To attach two lower paper trays at the same time, first stack them one upon the other, and then attach them as a single unit.
Remove the packaging from the lower paper tray.
Lift the machine slowly using the inset grips on both sides, and then position it immediately above the lower paper tray.
There are three upright pins on the optional lower paper tray. Align them with the holes on the underside of the machine, and then carefully lower the machine.
Plug in the power cord, and then turn on the machine.
Print the configuration page to confirm that the tray was attached correctly.
Check "Attached Equipment" on the configuration page. If the tray is attached correctly, "Tray 2", "Tray 3", and "Tray 4" appear.