To get this to work you need to assosiate a printer
On Windows 7 open explorer open network and double click the Nas drive this should then show a Printer symbol double click and a driver box will open now your printer needs to be in there find it and select it if the nas see's it it will install it then right click and click printing propertise and send a test page
Now if your printer will not suport this then it does not support direct printing this only came in with usb 2 i have a Cannon Pixma 3000 and that works fine but i had to put the usb drivers on first