HPLIP ne s'ouvre pas

Je viens d'installer HPLIP à l'aide du Centre logiciel Ubuntu dans la version 12.04LTS. L'icône est apparue dans Unity, mais rien ne se passe lorsque je clique dessus. J'ai exécuté hp-check -t dans un terminal et j'ai obtenu le résultat suivant :

nigel@nigel-F3Se:~$ hp-check -t
error: Unable to locate models.dat file

HP Linux Imaging and Printing System (ver. 0.0.0)
Dependency/Version Check Utility ver. 14.3

Copyright (c) 2011-14 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

Note: hp-check can be run in three modes:
1. Compile-time check mode (-c or --compile): Use this mode before compiling the
HPLIP supplied tarball (.tar.gz or .run) to determine if the proper dependencies
are installed to successfully compile HPLIP.                                    
2. Run-time check mode (-r or --run): Use this mode to determine if a distro    
supplied package (.deb, .rpm, etc) or an already built HPLIP supplied tarball   
has the proper dependencies installed to successfully run.                      
3. Both compile- and run-time check mode (-b or --both) (Default): This mode    
will check both of the above cases (both compile- and run-time dependencies).   

Saving output in log file: hp-check.log

Initializing. Please wait...
|Traceback (most recent call last):
  File "/usr/bin/hp-check", line 206, in <module>
    core.init()
  File "/usr/share/hplip/installer/core_install.py", line 412, in init
    self.distro_name = self.distros_index[self.distro]
KeyError: 0

J'ai installé HPLIP sur deux autres ordinateurs utilisant 12.04LTS sans ce problème. Toute idée ou conseil serait très apprécié.