HL-L6400DW(T) FAQs & Troubleshooting HL-L6400DW(T) Not your product? Sort by: Updated Date Popularity 6 Results 1. 26/02/2020 Paper is Jammed in the Mailbox Unit 2. 26/02/2020 Paper is Jammed in the 2-sided Tray 3. 26/02/2020 Paper is Jammed in the Back of the Machine 4. 26/02/2020 Paper is Jammed inside the Machine 5. 26/02/2020 Paper is Jammed in the Paper Tray 6. 22/11/2018 Jam MP Tray Paper Feed / Paper Jam FAQs & Troubleshooting