Thank you for your bug report, the notification problem has already been reported, see e.g bug #1725955 but it sounds like a cups(-browsed) issue if a deleted printer is automatically added back as configured...
** Package changed: gnome-control-center (Ubuntu) => gnome-settings- daemon (Ubuntu) ** Package changed: gnome-settings-daemon (Ubuntu) => cups (Ubuntu) ** Changed in: cups (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1864558 Title: Printer adds automatically at boot with notification or if printer deleted Status in cups package in Ubuntu: New Bug description: When booting 20.04 I get a notification on the logon screen each time advising that my wireless printer has been setup. If I remove the printer via settings, then as soon as it's removed, it gets re-added and I see the same notification as I do on the logon screen about the printer having been setup. I've attached a screenshot of this notification. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome-control-center 1:3.35.91-0ubuntu1 ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18 Uname: Linux 5.4.0-14-generic x86_64 ApportVersion: 2.20.11-0ubuntu18 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Mon Feb 24 21:49:43 2020 ExecutablePath: /usr/bin/gnome-control-center InstallationDate: Installed on 2020-02-24 (0 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200221) ProcEnviron: LANG=en_GB.UTF-8 LANGUAGE=en_GB:en PATH=(custom, no user) SHELL=/bin/bash XDG_RUNTIME_DIR=<set> SourcePackage: gnome-control-center UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1864558/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
