Adding a printer blocks the system entirely

I tried to install a printer (network) to my Fedora 41.
I unlock to add printers and change settings. Works fine.
When I check “Add printer” the message “No Printers found” shows up, disappears and the system is blocked entirely.
The only way to get out is power off the system manually.
Any ideas ?

I would try doing it by command line, rather than the GUI tools. To spam my own page

https;//srobb.net/cliscanprint.html goes through the steps.
As for what’s causing your issue, I’m sorry but I don’t have any good guesses there. To get more help with it, it might help to mention your model of printer.
It sounds like your using whatever Gnome tool they use to add printers. You could also try using a browser, going to localhost:631 and seeing if you have more luck with CUPS web interface.

The model of printer is HP Color LaserJet Enterprise M552
I used lpadmin to get the printer installed on the network.
Thanks a lot for your support.

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I use an HP color laserjet M277 and have had very good luck using hplip and no luck using the system config for that printer.

My approach has been relatively simple.

  1. install the hplip-gui sudo dnf install hplip-gui
  2. remove all existing configs for that printer using the settings gui
  3. Open the hplip setup gui and configure the printer.
    I always change the name of the printer so it does not conflict with the default name the system tries to configure.
  4. When the setup suggests to install the plugin I download it directly. (the plugin is required for use of the scanner on the MFP)

A couple of advantages to using the hplip config is that the proper driver is used, as well as having full management from the hplip gui.

You can do similar by using the command line tool hp-setup and not install the gui if you choose.

This is the printer from the cups interface after installation

and this is the HP device manager

Great! Thanks for letting us know you fixed it and what you used to do so.

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