HL-5270DN FAQs & Troubleshooting HL-5270DN Not your product? Sort by: Updated Date Popularity 2 Results 1. 26.08.2011 I heard a beep sound from the UPS (Uninterruptible Power Supply) when I turned on my Brother machine. 2. 01.04.2009 My Brother machine makes repeated clicking noises when I try to print. Others FAQs & Troubleshooting