Currently, if you are printing a document from Word that has a mixture of Portrait and Landscape orientation, the Universal Print Driver does not switch the orientations properly. By way of an ex...
There's a Windows update that should be out by the end of September that has some updates to print orientation options that may make this possible. I say "may" because I don't know the specifics of your scenario and whether it's the same as what that update addresses. Please let us know if the update fixes this for you.