1412
The Verge shows how Google search is useless
(www.theverge.com)
This is a most excellent place for technology news and articles.
I have an MFC-9340 and have also run into this problem. The drivers available in cups allow me to either print two-sided in b&w, or print single-sided in color (at least for the drivers that work at all with the printer). I finally broke down and installed the binary from Brother to get it working fully, but it's annoying that I can't just use a generic driver with this printer.