I can’t connect to the printer and I have reset it and spent 3-4 hrs on the phone with a hp assistant
How to air print or even conn to my hp tango A4 printer
[Re-Titled by Moderator]
See if this helps: https://support.apple.com/en-us/HT201311. There is an HP tango printer listed but not the HP tango A4. Did you try using the HP printer app?