You are not following, we already tried that. I have even installed it from a scratch on a never used laptop for that printer. BUT, real problem is non working Network scan to a shared location as have been working till recently.
Exactly the same on my MF4690PL. Even tried 3 different USB cables, and 2-3 PC's. Seems like or Canon network/USB stack has broke (but than how printing is working) or there is some problem with recent Windows updates.
Scan to USB Drive works. Scan to Wn 10 PC doesn't. Network scan also doesn't both initiated from PC, or from printer using standard way as I always did.
I have multiple times power cycle (even from power outlet for 5-10min), also power cycle all computers, router and switch, no luck. Also in my case USB scanning stop working, but printing and copying is working just fine.
