RJ-4230B FAQs & Troubleshooting RJ-4230B Not your product? Sort by Updated Date Popularity 4 Results 1. 07/16/2021 How do I switch to and use the mass storage mode? 2. 04/25/2018 How to attach the belt clip 3. 04/25/2018 How do I insert/change the paper or label roll? 4. 04/18/2018 How to use the Roll Holder Stop Machine FAQs & Troubleshooting