MFC-8420 FAQs & Troubleshooting MFC-8420 Not your product? Sort by: Updated Date Popularity 3 Results 1. 06/17/2014 I'm using Windows XP. I can't tell my application to feed paper from the lower tray. 2. 03/12/2010 The paper is skewed when it's printed. 3. 12/08/2005 My Brother machine misfeeds paper. Paper Feed / Paper Jam FAQs & Troubleshooting