The problem looks like to be that printers re-renerate/update certificates frequently even if they haven't expired. CUPS notices that the certificate has changed and refuses to print. This happens with ipps protocol, which is default. Here are instructions to use ipp protocol, which does not check certificates.
https://github.com/OpenPrinting/cups/issues/1072 ** Bug watch added: github.com/OpenPrinting/cups/issues #1072 https://github.com/OpenPrinting/cups/issues/1072 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1973441 Title: Printing does not work on Ubuntu 22.04 - cups-pki-invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1973441/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
