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