FAX-2840 FAQs & Troubleshooting FAX-2840 Not your product? Sort by: Updated Date Popularity 3 Results 1. 06/08/2012 Clean the drum unit 2. 03/08/2012 Clean the paper pick-up roller. 3. 21/06/2012 Clean the scanner to improve the copy or fax quality. English Cleaning FAQs & Troubleshooting