Samsung SCX-4720FN - Manual (Page 282)

C
I NSTALLING M ACHINE O PTIONS C.5
Installing an Optional Tray
You can increase the paper handling capacity of your machine
by installing an optional Tray 2. This tray holds 250 sheets of
paper.
1 Turn the machine off and unplug all cables from the
machine.
2 Remove the packing material from the tray and remove the
tape fixing the interface cable to the tray.
3 Find the location of the connector and the optional tray
positioners.