DCP-8155DN FAQs & Troubleshooting DCP-8155DN Not your product? Sort by: Updated Date Popularity 4 Results 1. 01/20/2014 Clean the drum unit 2. 05/10/2012 Clean the paper pick-up roller. 3. 05/09/2012 Clean the scanner to improve the copy or fax quality 4. 05/09/2012 Clean the corona wire Cleaning FAQs & Troubleshooting