How do I set up a wireless connection on the HP Color LaserJet Pro M255 M256?

Before setting up your wireless connection, disconnect any USB or network cables from your printer. On the touchscreen control panel, touch the Wireless icon, touch Network Wi-Fi off, then touch Settings, and then touch Wireless Setup Wizard and select your network name from the list of available wireless networks. Do not connect the USB cable until you are prompted to do so during software installation. (Page 8)

From the official HP Color Laserjet Pro M255 M256 Printer manual, page 8

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