Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
The information I found immediately after searching, says the selection is in MS Word, not in your printer driver:
Open your document in MS Word, and select
-- File button
− Page set up
− Choose Paper Tab
− Under Paper Source, choose the tray for your first page and then the tray for the other pages.
This however does not allow selecting one tray for the 1st page of each section of a large multi-page printout, perhaps. I don't know what MS Word versions this applies to, I don't know what MS Word version you have, and I don't know what exactly you would want, aside from specifying some pages arbitrarily as from one paper source or paper tray, and other pages to another paper source or paper tray.
Please let me know, as to all these points, and we may be able to work out a solution. Thanks.