RJ-4230B FAQs & Troubleshooting RJ-4230B Not your product? Sort by Updated Date Popularity 2 Results 1. 05/02/2022 How do I connect the printer and my mobile device via Bluetooth®? 2. 07/16/2021 This printer is not detected when establishing a Bluetooth® connection. Connecting to a Mobile Device FAQs & Troubleshooting