MFC-J6920DW FAQs & Troubleshooting MFC-J6920DW Not your product? Sort by: Updated Date Popularity 3 Results 1. 04/11/2014 My Brother machine's Copy Quality is set to "Best" and I cannot change it. 2. 11/06/2013 Change my Brother machine's default fax and copy settings. 3. 07/23/2013 How do I adjust my Brother machine's tray use for copying and faxing? Copy FAQs & Troubleshooting