DCP-540CN FAQs & Troubleshooting DCP-540CN Not your product? Sort by: Updated Date Popularity 4 Results 1. 11.05.2015 I cannot pull the paper tray out of my machine. What can I do? 2. 28.01.2013 The keys on the control panel do not respond. 3. 21.10.2010 How do I clear Machine Error 46? 4. 26.06.2007 Why does my computer become unresponsive when using the USB interface to connect the Brother machine? Others FAQs & Troubleshooting