TJ-4021TN FAQs & Troubleshooting TJ-4021TN Not your product? Sort by Updated Date Popularity 3 Results 1. 06/24/2020 How to clean the Print Head 2. 06/24/2020 How to clean the Platen Roller 3. 06/24/2020 How do I clean / maintain my printer? Maintenance FAQs & Troubleshooting