5     drivers = [ pkgs.hplip ];
 
   7   hardware.sane.enable = true;
 
   8   hardware.sane.extraBackends = [ pkgs.hplipWithPlugin ];
 
   9   hardware.printers.ensurePrinters = [
 
  11       name = "HP_Deskjet_2540_series";
 
  12       description = "HP Deskjet 2540";
 
  13       deviceUri = "hp:/usb/Deskjet_2540_series?serial=CN56N6B0CG0604";
 
  14       model = "HP/hp-deskjet_2540_series.ppd.gz";