How do I set up a wireless connection for the Officejet Pro 7720?
Follow the instructions on the printer control panel and install the HP printer software or HP Smart app. On the printer's control panel display, touch or swipe down the tab at the top of a screen to open the Dashboard, touch Wireless, and then touch Settings. Touch Wireless Settings and either touch Wireless to turn it on, or touch Wireless Setup Wizard to follow the onscreen instructions. (Page 1)
From the official HP Officejet Pro 7720 Wide Format All-in-One Printer manual, page 1
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