MFC-L6900DW(T) FAQs & Troubleshooting MFC-L6900DW(T) Not your product? Sort by: Updated Date Popularity 2 Results 1. 26/11/2018 Install the optional lower tray 2. 01/03/2016 Install the Tower Tray Unit. More FAQs Consumables / Paper / Accessories FAQs & Troubleshooting