See http://www.cups.org/newsgroups.php?s25020+gcups.general+v25032+T0 ./check-device-ids.py "Samsung ML-1450" "MFG:Samsung;CMD:PCL5E,PCL6;MDL:ML-1450;CLS:PRINTER;" └── Samsung ML-1450 (user-specified): MFG:Samsung;MDL:ML-1450;CMD:PCL5E,PCL6; MISSING gutenprint.5.2://samsung-ml-1450/simple [/usr/lib/cups/driver/gutenprint.5.2] MISSING gutenprint.5.2://samsung-ml-1450/expert [/usr/lib/cups/driver/gutenprint.5.2]