HL-3450CN FAQs & Troubleshooting HL-3450CN Not your product? Sort by: Updated Date Popularity 4 Results 1. 03/23/2016 What can happen if the wrong paper is used in your machine. 2. 10/17/2006 What kind of labels and transparencies can I use? 3. 10/16/2006 What kind of paper should I avoid? 4. 10/16/2006 What kind of envelopes should I avoid? Consumables / Paper / Accessories FAQs & Troubleshooting