Thanks Rick for your answer. I created a new thread entitled:
Sorry, I forgot to precise that on the laptop I have Windows 7 (64 bit). This come originally with the laptop (bought 6 month ago), so it isn't upgraded.
But my Windows version is french (I'm living in France) and so I think that I need the (compatible) french drivers (I tried with the english drivers for Windows Vista 64-bit, but I didn't managed to make work the printer, only the scanner...
Thanks in advance.