FAX-2820 FAQs & Troubleshooting FAX-2820 Not your product? Sort by: Updated Date Popularity 3 Results 1. 10/09/2014 How do I clean white or black spots on printed documents? 2. 07/05/2009 How do I clear vertical lines or streaks that appear in the copies I make? 3. 21/11/2005 How can I improve the copy quality? More FAQs Copy FAQs & Troubleshooting