HL-1850 FAQs & Troubleshooting HL-1850 Not your product? Sort by: Updated Date Popularity 3 Results 1. 26.08.2011 I heard a beep sound from the UPS (Uninterruptible Power Supply) when I turned on my Brother machine. 2. 16.10.2006 Printer cannot power on. 3. 16.03.2006 The machine does not print anything. Others FAQs & Troubleshooting