Hi Goldeneye. When you connect 2 pc with 1 printer with usb switch how can you print with first pc?very simple.(with hot keys on your keyboard)You must 2xpush "scroll" key on your keyboard,than switch knows that you want to print with this pc where you push scroll key.on second pc it is the same. 2xpush "scroll"key then you send "print" command from your pc.Sorry about my English.
best regards,Kruno