I have a windows 7 and a canon imageclass MF4150 all in one printer. The device manager is picking up the printer as attached and then not identifying the device as a printer. The troubleshoot that windows is giving me is to download the drivers which I have done about ten times and each time I have it overwrite the same file. Whenever I download the drivers is will download them but then the files are no where to be found. While this printer is three years old, it is a great laser printer and I don't want to purchase a new one. There are updated drivers on the canon site for windows 7 and those are the ones that I have been downloading. Any ideas would be helpful.