FAX-2820 FAQs & Troubleshooting FAX-2820 Not your product? Sort by: Updated Date Popularity 3 Results 1. 11.12.2009 How do I clean the corona wire? 2. 26.12.2006 How do I clean the laser scanner window? 3. 06.09.2006 How do I clean the scanner glass? Cleaning FAQs & Troubleshooting