FAX-2820 FAQs & Troubleshooting FAX-2820 Not your product? Sort by: Updated Date Popularity 3 Results 1. 15/05/2013 How do I clean white or black spots on printed documents? 2. 09/05/2013 How can I improve the copy quality? 3. 09/05/2013 How do I clear vertical lines or streaks that appear in the copies I made? Copy FAQs & Troubleshooting