This copy machine / scanner / network printer works with Windows but no drivers are available for linux.
When Ubuntu supports a printer it works fine but this one is not supported.

I found the drivers in:
http://onyxftp.mykonicaminolta.com/download/SearchResults.aspx?productname=bizhub%20200

//But I don't know how to install them, nor which one to download.
//How can I install this driver?

EDIT:
The file with the driver is here
http://onyxftp.mykonicaminolta.com/DownloadFile/Download.ashx?fileid=18571&productid=865
Inside the archive there is a .deb package that installs correctly but doesn't work.

So far the question is: "How can I make it work?"