MFC-8640D FAQs & Troubleshooting MFC-8640D Not your product? Sort by: Updated Date Popularity 2 Results 1. 11/20/2014 How to launch and use the DeviceSelector to configure the scanner? (For Macintosh) 2. 04/27/2006 I'm using Macintosh®. What are the settings in the Scanner window used for? Scan FAQs & Troubleshooting