RJ-4230B FAQs & Troubleshooting RJ-4230B Not your product? Sort by Updated Date Popularity 3 Results 1. 12/11/2023 What is the JPEG printing and how can I use it? 2. 07/16/2021 How to use the Paper Size Setup (for Windows) 3. 10/24/2019 The print quality is poor. Printing FAQs & Troubleshooting