** Description changed:

  System: Ubuntu 18.04
  system-config-printer version: 1.5.11-1ubuntu
  printer: Canon iP7250
  
  I expect to be able to see the printer in the panel just as 'lpstat -l
  -e' or 'driverless' can see them, without the need to especially add a
  new printer.
  
  And if I do need to add it (don't see why that should be the case, but
  still), I expect that choosing the printer's name under network would
  result in adding the printer.
- 
  
  What happened instead:
  
  Canon iP7250 isn't shown in the Printers panel, clicking on add and
  expanding the network options - it is shown, but when trying to add it
  (either driverless IPP, LPD via DNS-SD or IPP via DNS-SD) it gives an
  error about CUPS internal error.
  
  `$ lpstat -l -e` gives
  `Canon_iP7200_series network none 
ipp://Canon%20iP7200%20series._ipp._tcp.local/`
  
  So the system does see it, and `lp -d Canon_iP7200_series
  /etc/nsswitch.conf` does print (and for a minute the printer is shown in
  the Printers panel - but then disappears).
  
  I can add it by *not* clicking on the printer's name under Network, but
  rather, click on ipp printer and manually choose Canon -> iP7200 ->
- CUPS+Gutenberg driver (and not the recommended driverless option -
+ CUPS+Gutenprint driver (and not the recommended driverless option -
  which, if I choose results in that same cryptic error I get when trying
  to add the printer by clicking on it, as described above).

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https://bugs.launchpad.net/bugs/1815307

Title:
  ipp printer isn't shown automatically - adding it errors with a CUPS
  internal error

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