MFC-J4420DW FAQs & Troubleshooting MFC-J4420DW Not your product? Sort by: Updated Date Popularity 3 Results 1. 02/17/2015 (Video) Load A4/Letter paper 2. 06/04/2014 Load an Envelope (Manual Feed Slot) 3. 06/03/2014 Load paper in the paper tray Consumables / Paper / Accessories FAQs & Troubleshooting