Hello Sebastianiac,
I found this article on how to select 2 sided printing. If you are still having issues after trying these steps, I suggest that you call into our support department for assistance @ 1-800-821-2797 or 1-800-835-6100
I bought the Xerox 3020 printer today and everything works fine.
The problem is that I do not understand how to print double-sided, because it is not automatic.
And the second question is how do I turn it off?
Thanks