Hi, everybody
I don't know why this happens, but I think I have found a way to make my Canon MF 5730 print from the virtual Machine. This device is not just a printer, but a scanner as well. I tried scanning and it worked perfectly.
After scanning I tried printing again and it worked ! It works until I reboot my virtual machine, after which I have to scan something again. Seems like an initialization problem or something like this. Still trying to figure out how to make it print without scanning.