I have a HP Photosmart 8720 printer connected on the local network. I can print to it from Kubuntu 24.04 using the automatically created 'printer' of Kind 'HP Printer, driverless, 2.0.0'.
The problem is that cups-browsed automatically discovers 2 other printers of Kind 'local raw printer' and with connection 'file:///dev/null'. Not surprisingly, these don't work, but they still show up in applications and often clog up the print dialog.
If I delete these 2 invalid printers they automatically come back up as soon as the cups-browsed service is restarted (so I know it's cups-browsed doing it). I can't disable cups-browsed because if I do then the working printer goes away and I'm left with just the 2 invalid ones. I've tried various cups-browsed.conf options but none seem to have any effect.

