DCP-L8400CDN FAQs & Troubleshooting DCP-L8400CDN Not your product? Sort by: Updated Date Popularity 3 Results 1. 08/07/2014 Install the optional lower tray 2. 26/06/2014 What kind of memory can I use? 3. 26/06/2014 Install extra memory More FAQs Consumables / Paper / Accessories FAQs & Troubleshooting