scanner

[Gottfried]

Hi,
after adding 2 brackets at the end,

(services
  (append
   (list (service mate-desktop-service-type)
         (service enlightenment-desktop-service-type)
         (service cups-service-type
                  (cups-configuration
                   (web-interface? #t)
                   (extensions (list cups-filters
                                     hplip))))
         (service openssh-service-type)
         (service tor-service-type)
         (set-xorg-configuration
          (xorg-configuration
           (keyboard-layout keyboard-layout))))
   (modify-services %desktop-services
                    (sane-service-type _ => sane-backends))))

and running:
sudo guix system reconfigure /etc/config.scm

I still can´t use a scanner.  My 3 programs: hp device manager, scanner 
and xsane don´t start. My system doesn´t find a scanner, even though I 
connected and started my printer/scanner.

I don´t know where the problem is.

gottfried