Using Lexmark Mobile Assistant
Depending on your mobile device, download the Lexmark Mobile Assistant app from either Google Play or App Store.
Depending on your printer model, do one of the following:
Note: If necessary, grant permissions.
Tap Connect to Printer > Go to Wi‑Fi Settings.
Connect your mobile device to the printer wireless network.
Return to the app, and then tap Setup Wi-Fi Connection.
Select a Wi-Fi network, and then type the network password.