HL-5370DW/HL-5370DWT FAQs & Troubleshooting HL-5370DW/ HL-5370DWT Not your product? Sort by: Updated Date Popularity 2 Results 1. 01/17/2014 How do I install additional memory? 2. 01/13/2006 How do I install the Optional Tray Unit? Product Setup FAQs & Troubleshooting