MFC-J6920DW FAQs & Troubleshooting MFC-J6920DW Not your product? Sort by: Updated Date Popularity 3 Results 1. 03/07/2015 How do I clean the Scanner to improve the copy or fax quality? 2. 26/03/2015 Improve poor print quality. 3. 24/07/2013 Clean the paper pick-up rollers Cleaning FAQs & Troubleshooting