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Is this a specific model sold only in Europe?
All I can find on this model on Google is in Russian, Scandanavian, and some other weirdly typed languages that I can't read, so I don't know what language version you may be looking for.
Canon's site is broken up into many regions and this model is from a specific region that I can't find yet. I've tried USA, Canada, Romania, UK, Germany, and a few more, and I can't find ANYTHING on this model using the site search features....sorry.
This model sells for Eastern Europe and Russia. I've downloaded and installed driver for i-sensys 4100 series but it supports only print function with limitations and doesn't support scanning function. Drivers for i-sensys 4010 series in Canon Europe HQ page aren't updated since 2007 !!!
That's the only model I found also that was close to yours, that had drivers listed on the European site. I think I saw a mf4020 somewhere too but I can't remember for sure.
I guess the best advice I can give you is to contact Canon Support, maybe on a European site, and ask them if they can find anything for you. I tried as much as I can to find a driver for you and if I can't find one, I doubt you can either unless you contact Canon directly.
Good Luck, and come back anytime you need help or advice!