Since I upgraded my system to Ubuntu 20.04, I cannot print anymore:
$ lpq
MG6200 est prêt
no entries
$ lpr feuille.pdf
lpr : Unsupported document-format "application/pdf".
I restarted cups, reinstalled the printers (wifi and usb)
What else can I try?
Try methods described here and tell if it helped or not:
sudo add-apt-repository ppa:thierry-f/fork-michael-gruz sudo apt install cnijfilter2 scangearmp2 cndrvcups-utility
Depends on your device, search for cnijfilter (for printing) or scangearmp (for scanning) in Synaptic package manager (install it via Ubuntu Software).
And finally select install the driver that is match for your device. And it’s OK to install i386 only package on 64-bit Ubuntu.
If these packages have been installed, uninstall them:
sudo apt purge cnijfilter2 scangearmp2 cndrvcups-utility && sudo apt autoremove
and try again.
During upgrade kernel and some system libs have been changed. So it could be the main cause of your issue.
Remove ippusbxd by running this command in terminal:
sudo apt remove ippusbxd
Delete and reinstall the printer using the GUI printer utility
Print a test page
This worked for me after hours of troubleshooting, I hope it works for you as well!
You might also want to read these related questions where more knowledgeable people than me explain how all printers now are "network printers" or something like that. Apparently removing ippusbxd isn't the most elegant solution, but as long as it works I'm happy :-)
