Brother HL 4040CN - Manual (Page 72)

Wireless configuration for Windows ® using the Brother automatic installer application
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4
c
Choose Search the network for devices and choose from a list of discovered devices
(Recommended). Or enter your printer's IP address or its node name. Click Next.
Note
Contact your administrator if you do not know the printer's IP address or node name.
d Choose your printer, and then click Next.
Note
If your printer takes a long time (about 1 minute) to appear on the list, click Refresh.