HL-5450DN FAQs & Troubleshooting HL-5450DN Not your product? Sort by: Updated Date Popularity 3 Results 1. 01/17/2014 Install additional memory. 2. 02/22/2013 Install the optional tray unit. 3. 04/26/2012 What kind of memory can I use? Consumables / Paper / Accessories FAQs & Troubleshooting