I see that you're trying to reset the wifi password for the printer, usually, the printer does not have a password unless you set one. The wireless password is for the network and can be changed on the router webpage. In case you have changed the wireless password and want to configure the printer again, follow the steps below-
Locate the WPS button on your router, but do not press it yet.
If your router does not support WPS, skip to the next step to connect the printer with the HP Smart app.
Turn on the printer. If the printer is in sleep mode, press the Cancel button on the control panel.
On the printer control panel, press and hold the Wireless button for at least 3 seconds or until the wireless light starts to flash.
On the router, press and hold the WPS button for 3 to 5 seconds or until it shows that the WPS connection process has started.
The printer stops searching for a WPS connection two minutes after the wireless button is pressed. If you were unable to press the WPS button within that timeframe, attempt these steps again.
Once the printer connects to the wireless network, the blue Wireless light on the control panel turns on solid.
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