HL-6180DWT FAQs & Troubleshooting HL-6180DWT Not your product? Sort by: Updated Date Popularity 3 Results 1. 16/11/2015 The print speed is slow. 2. 16/11/2015 I heard a beep sound from the UPS (Uninterruptible Power Supply) when I turned on my Brother machine. 3. 11/09/2012 Reduce printing noise using Quiet Mode More FAQs Others FAQs & Troubleshooting