I use the Xfce desktop on my Ubuntu 20.04.5 system.
I installed gnome-control-center in order to set up my HP Officejet Pro 8600 printer and followed the "normal" route for adding and configuring my network printer. When I fed the IP address to gnome-control-center, it selected the model as "HP Officejet Pro 8600, driverless, cups-filters 1.27.4". This procedure resulted in a config that looked good at least until I tried to use it. At that point, the printer started spitting out lots of blank pages, a few of which had random nonsense on them.
After power cycling the printer, a "new" printer showed up in the printers-localhost window, this one claims to have a model of HP Officejet Pro 8600 (that wasn't even an option when I went looking). However, it still prints rubbish.
I'm looking for suggestions on how to get this thing to print something useful instead of rubbish. I run this printer, autoconfigured by the gnome tools, from other Ubutnu desktops without these problems.