MFC-J870DW FAQs & Troubleshooting MFC-J870DW Not your product? Sort by: Updated Date Popularity 5 Results 1. 02/20/2015 (Video) Load plain Letter/A4 paper 2. 09/26/2013 Load envelopes 3. 07/01/2013 Load paper in the paper tray 4. 03/28/2013 What is the recommended paper? 5. 06/03/2010 How do I know which side up my photo paper should be in the tray? Consumables / Paper / Accessories FAQs & Troubleshooting