Brother HL 5370DW - Manual (Page 126)

Control panel features
116
8
FACTORY RESET
8
The FACTORY RESET allows you to reset the print server back to its factory default settings.
a Press any of the Menu buttons (+, -, Set or Back) of the control panel on your machine.
b
Press + or - to choose NETWORK.
Press Set.
c Press + or - to choose FACTORY RESET.
Press Set.
d
When RESTART PRINTER? appears, press Set again.