MFC-7440N FAQs & Troubleshooting MFC-7440N Not your product? Sort by: Updated Date Popularity 2 Results 1. 02/03/2021 The error message "No Supported Devices Found" appears on the Brother iPrint&Scan screen (mobile device). 2. 17/10/2018 The error message "No Supported Devices Found" appears on the Brother iPrint&Scan (mobile device). Mobile FAQs & Troubleshooting