How do I use WPS to quickly connect the ET-3850 to my wireless network?
Press the home button, select the network icon, then choose Wi-Fi (Recommended) and select Push Button Setup (WPS). Follow the instructions on the LCD screen to complete the WPS setup, and make sure you select Start Setup within two minutes of activating WPS on your router. After a successful connection, the Wi-Fi icon will appear on the LCD screen. (Page 42-43)
From the official Epson EcoTank ET-3850 All-in-One Printer manual, page 42
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