MFC-620CN FAQs & Troubleshooting MFC-620CN Not your product? Sort by: Updated Date Popularity 4 Results 1. 04/06/2014 The edge of glossy paper is smudged. 2. 22/11/2011 When I print, the pages are smudged with ink. What should I do? 3. 06/11/2009 One or more of my colors are not printing (blank). What can I do? 4. 08/11/2005 Vertical streaks appear in my copies. Copy FAQs & Troubleshooting