@26321,
Welcome to the HP Support Community!
I believe you are trying to connect to the wi-fi direct network of the printer and it's asking for the wi-fi direct password.
Try 12345678.
If it doesn't work then to find the Wi-Fi Direct name and password, press the Information button (i) to print a printer information page.
Try the wi-fi direct passcode/password from that information page.
Let me know how it goes and you have a great day!
If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!
Cheers!
The_Fossette
I am an HP Employee