RJ-3050 FAQs & Troubleshooting RJ-3050 Not your product? Sort by Updated Date Popularity 2 Results 1. 18.10.2019 Wi-Fi® and Bluetooth® lamps are lit in blue but the printer cannot communicate with other devices via a wireless LAN. 2. 04.10.2019 I cannot print in Windows 10 using Bluetooth® even though my machine and computer are paired. Connecting to a Computer FAQs & Troubleshooting