Brother DCP-4020C - Manual (Page 215)

15 - 14 TROUBLESHOOTING AND ROUTINE MAINTENANCE
5
Remove the paper tray from the DCP.
6
Unplug the DCP from the AC power outlet.
7
Unplug the USB cable from the DCP.
8
Put all the parts in their original packaging or protective
wrapping.
9
Wrap the DCP in the plastic bag.
Paper Tray