Dell B1265dfw Multifunction Mono Laser Printer - Manual (Page 160)

Wireless network setup
160 2. Using a Network-Connected Machine
4 Click New Printer.
5 Choose Wireless.
6 Click Next
7 The software searches the wireless network.
If the search has failed, you may check if the USB cable is properly connected
between the computer and machine, and follow the instructions on the
window.