HL-L2379DW FAQs & Troubleshooting HL-L2379DW Not your product? Sort by: Updated Date Popularity 3 Results 1. 06/29/2023 Print on Both Sides of the Paper Automatically (Automatic 2-sided Printing) 2. 08/16/2022 Print as a Booklet Automatically (Windows) 3. 03/23/2016 Print on envelopes, labels or thick paper from the Manual feed slot Print FAQs & Troubleshooting