HL-5070N FAQs & Troubleshooting HL-5070N Not your product? Sort by: Updated Date Popularity 4 Results 1. 08/26/2011 I heard a beep sound from the UPS (Uninterruptible Power Supply) when I turned on my Brother machine. 2. 10/16/2006 None of the LEDs illuminate. 3. 10/16/2006 Printer cannot power on. 4. 11/08/2005 The printer makes a grinding or clicking sound. Others FAQs & Troubleshooting