Brother HL-8050N - Manual (Page 174)

APPENDIXES A - 16
Duplex Unit (DX-8000)
You can install an optional duplex unit to this printer.
Be sure to switch off the power and unplug the power cord from the outlet before carrying out the
operations. If not, you might get an electrical shock.
Installing the Duplex Unit
1
Turn off the printer power switch.
2
Pull out the power cord from the AC power outlet/socket
and then the printer.
3
Remove the packing that protects the DX connector.
WARNING