Can't find Ubuntu drivers for the HP Envy 4520 printer

Just bought a HP envy 4520 and it works out of the box with CUPS. No driver installation was needed.

I just connected it to my wifi and added the printer using auto discover. Scanning is also working without any further configuration or installation.

I just had to configure Ubuntu 19.10 with HP envy 4520. I had no issues with 18.04, 18.10, and 19.04, as it used to auto-discover both the printer and the scanner over Wi-Fi with no human intervention. However, in 19.10 I had to do it manually.

To add the printer, in Applications, go to Printers and click Add. This should automatically find the printer and add it to the list. You can double check by printing a document. Adding a scanner is a little trickier.

To add the scanner, based on HpAllInOne, I had to run sudo hp-setup. If you get error: hp-setup requires GUI support, you need to run sudo apt-get install python3-pyqt5. Retry sudo hp-setup, and it should open a GUI window¹. From there, it wouldn't auto-detect the scanner over Wi-Fi, as it couldn't find any scanners. So, click Back and on the start page, click Advanced. Enter your printer's IP² and confirm. Now if you go back to Printers utility, you should see your scanner there.

¹If that didn't work, refer to the link above. You may need to install python3-pyqt4.

²You can find the IP in at least two ways: (1) if your printer is already detected, go to Printers, click the gear icon, then Printer Details, and you'll see the Address there; (2) in your printer's interface, go to network settings and look for the IP address. It goes without saying, but you should be connected to the same Wi-Fi network!