HP Printer suddenly not seen by Windows

Hello, Last Week i was on Vihication, so my sister connected my HP F2224 to her Notebook printed and everything was fine. Since I'm back the Printer won't be seen by my Desktop - Windows 7(x64). The Printer itself starts properly and makes all the sounds it's always done. I tried reinstalling all the Drivers and exchanged the USB connecting cable but nothing seems to work. I've also tried to connect it to a fresh installed Windows 7 (x86) on another Notebook of mine. I really don't have a clue what to do anymore, since the device works properly but doesn't connect i don't think the device itself is damaged. Can anyone help ?

bring it back to the service center, might have a defective usb port on the printer