I have had my R2000 installed for a few days running QTR. It has been working beautifully. It is connected as a Bonjour printer on an Airport Express. I am using Print Tool 1.1.0, QTR 2.7.6 now and 2.7.5 when this started. I am running OS X 10.9.5
In System Preferences, instead of showing QTR next to Kind it is blank. If I go to Page Setup in Print Tool, the only paper size is 'Item 1'. The install script shows no error. I have deleted and reinstalled the real printer and the QTR printer but it doesn't change.