kelner@luther:~$ /usr/lib/cups/backend/hp direct hp:/usb/Deskjet_F300_series?serial=CN6ADGG13Q04KH "HP Deskjet F300 series" "HP Deskjet F300 series USB CN6ADGG13Q04KH HPLIP" "MFG:HP;MDL:Deskjet F300 series;CLS:PRINTER;DES:Deskjet F300 series;SN:CN6ADGG13Q04KH;"
kelner@luther:~$ /usr/lib/ cups/backend/ hp Deskjet_ F300_series? serial= CN6ADGG13Q04KH "HP Deskjet F300 series" "HP Deskjet F300 series USB CN6ADGG13Q04KH HPLIP" "MFG:HP;MDL:Deskjet F300 series; CLS:PRINTER; DES:Deskjet F300 series; SN:CN6ADGG13Q04 KH;"
direct hp:/usb/