Brother MFC-420CN - Manual (Page 139)

TROUBLESHOOTING AND ROUTINE MAINTENANCE 11 - 20
3
Lift the scanner cover to release the lock. Gently push the
scanner cover support down and close the scanner cover.
4
Unplug the MFC from the telephone wall jack and remove the
telephone line cord from MFC.
5
Unplug the MFC from the AC power outlet.
6
Unplug the USB cable or LAN cable from the MFC, if it is
connected.
7
Wrap the MFC in the bag and place it in the original carton with
the original packing material.