I have had the same computer (Lenova, Win 7) and Canon MF4350d for many years. Just recently the computer stopped recognizing the printer. I downloaded new drivers from Canon, deleting the printer and prior drivers. I installed the new driver and now the computer only recognizes the MF42350 as a fax machine, not as a printer. It also has difficulty creating .PDF when scanning, so that I am now scanning and saving documents as .jpg.
Help?