Hello, my name is ***** ***** I hope to help. So there's two ways we can get this wireless printer setup. The WPA Passphrase is your password ***** your WiFi internet, if you know this, you could enter it there. If NOT the other way to set this up is to plug the printer in with the USB cable (if supported) temporarily to a computer that's already on your network. While setting it up with the HP Software (if you're using that) there is a choice to set up wirelessly but use a USB cable to detect network settings. If you need further instructions let me know and I'll work with you as close as you need.
Since this is a Q&A style service, when you return to this window I may be away from my desk, we're a third-party consulting team and don't have fixed hours here but I do get e-mail notifications when you reply, so please don't rate negatively. I'm going to do everything I can to set this up proper for you.