RJ-4040 FAQs & Troubleshooting RJ-4040 Not your product? Sort by Updated Date Popularity 3 Results 1. 10/18/2023 Printing is not possible. (USB connection) 2. 11/26/2020 How do I connect RJ printer to my computer? 3. 10/12/2018 Which interface cable can I use? Connecting to a Computer FAQs & Troubleshooting