install hplib-gui

si erreur : Unable to communicate with device (code=12)

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  Turn printer off, open "Printers" control panel, delete the default printer installed by Ubuntu.
  In terminal, remove the USB driver apt purge ippusbxd
  Install new ipp-over-IP driver (DEB) from https://download.opensuse.org/repositories/home:/pzz/xUbuntu_20.04/amd64/
  Power on printer
  In terminal run hp-setup -i and install USB printer with PPD plugin as suggested by installer. Test page will not work.
  From any program (ex Libre Office) choose Print and you will find two (!) printers, one with the hostname suffix added to it, (1) mylaserjet, and (2) mylaserjet-lenovo
  Print to the the second printer with hostname suffix, ex mylaserjet-lenovo. This printer is not visible in the "Printers" control panel.