New OfficeJet 8012e won't print, driver's don't find printer properly

[the_epoch]

The 8012e printer has been installed, originally using the HP Smart app driver, but if I send a print job to the printer, it errors.

I can print though from the HP Smart app, but only the repoprts like Network report etc.

The HP Smart app correctly identifies the network settings of the printer (static IP: 192.168.20.10/24).

I can also connect to the printer EWS and modify/change settings.

In Windows Settings >Devices , the printer shows as "driver is unavailable".

If I go to Control Panel > Devices and Printers, and manually add a printer, Windows can see the printer (with the right name) on the network, but when the driver tries to install, the driver can't communicate with the printer. I have tried installing the full driver package,  and the HP Easy Start Printer Setup Software. But when the driver is actually trying to communicate with the printer, it can't find it.
The printer has been powered off (at the wall) and powered back on again. It has been disconnected and rejoined to the wireless network. I have configured it using a different IP address but still have the same problem.

I have uninstalled everything (HP related) and re-installed but still come up against the same issues. 

I have tried using Print and Scan Dr as well, but when it gets to the Test Print, it also can't print to the printer. the test page just sits in the print queue and finally errors.

[the_epoch]

Thanks @dragon-fur, but None of that helped.

I think I already mentioned, I have fully uninstalled (including ensuring the type4 printer server drivers  are actuary removed) and reinstalled the drivers.

It has nothing to do with dual band network, the printer will only connect to either 2.4 or 5Ghz at any given time and they're not isolated from each other.

There is no loss of wireless connection (I can ping the printer IP without any packet loss) and it's not security software that is blocking it.

The HP Smart app and the drivers have been installed at the same time and I still can't print to the printer. As I mentioned, the job (even a test page) just gets stuck in the print queue. 

[the_epoch]

Thanks for getting back so quick!

Sadly no. I have already tried configuring the driver to use TCP/IP instead of WSD, The jobs just get stuck in the print queue. I've tried changing the IP address of the printer and the driver port. 

As I mentioned the HP Smart app CAN communicate with the printer and it CAN print a diagnostic (e.g. Network Reports) though.

Installing the printer driver (even with TCP/IP), the Test Page fails.

Edit: Sony, it's not on a mesh network, both the computer and the printer are on the same SSID, which is advertised by only one router.

I can login to the router and see the printer in the ARP table. 

[the_epoch · Accepted solution]

SOLVED:
This needed a full factory reset of the printer and setup from scratch using the HP Smart app.

I cannot belive how poorly designed this software is. It seems as if it isn't setup through the HP Smart app (that's an oximoron) at the very start AND connected to HP's online services with a HP account, then it won't print.

Adding the printer via Windows Settings > Bluetooth and Devices > Printers also doesn't work, even with the driver installed, it just shows, "driver is unavailable".  This should NEVER be the case, especially when the driver IS available.