HL-2280DW FAQs & Troubleshooting HL-2280DW Not your product? Sort by: Updated Date Popularity 2 Results 1. 01/28/2013 The keys on the control panel do not respond. 2. 08/26/2011 I heard a beep sound from the UPS (Uninterruptible Power Supply) when I turned on my Brother machine. Others FAQs & Troubleshooting