As you can see in the picture, I have multiple instances of the same printer in my IPP integration in HA. That happens I think when HA starts and the printer is off, so when I turn it on, it discovers a new integration, but it was already there.
Any ideas what I could do? Printer has fixed IP so I dont think that would be the issue.
Sorry can’t help you with the manual setup because I don’t have that device. Discovery will still find it until you can manually configure it. Once you manually configure, it will no longer create duplicates. It’s been an issue that plagues discovery and it depends on how well the component is set up.