HL-L6400DW(T) FAQs & Troubleshooting HL-L6400DW(T) Not your product? Sort by: Updated Date Popularity 3 Results 1. 03/25/2016 What kind of envelopes and labels are recommended for printing? 2. 03/23/2016 What can happen if the wrong paper is used in your machine. 3. 03/04/2016 What is the recommended paper? Specification FAQs & Troubleshooting