I've got a similar set up. After installing the software, I can print fine. The Scanner isn't recognized however.
I'm running Windows 7, 64-bit on a laptop. At home I have the M475d, wired. The scanner works fine. I then purchased an M475dw for the office. So in Windows I have two printers defined, the d and the dw. One works (obviously) when my laptop is at home, the other when the laptop is at the office.
But... I can't seem to get Windows to recognize the scanner on the wireless connection, even though printing works fine.
Any tips?