TJ-4121TN FAQs & Troubleshooting TJ-4121TN Not your product? Sort by Updated Date Popularity 3 Results 1. 24/06/2020 How to clean the Print Head 2. 24/06/2020 How to clean the Platen Roller 3. 24/06/2020 How do I clean / maintain my printer? Maintenance FAQs & Troubleshooting