[Trisquel-users] Re : Add new printer: "could not add new printer" error message

[lcerf]

Also, Debian stretch has more recent version of the packages.  For example,  
it has version 3.16.11 of HPLIP vs. version 3.16.3 in Trisquel's repository.   
If the model of the printer is recent, that can make a difference.