TJ-4420TN FAQs & Troubleshooting TJ-4420TN Not your product? Sort by Updated Date Popularity 3 Results 1. 22/10/2020 How do I clean / maintain my printer? 2. 28/09/2020 How to clean the Platen Roller 3. 28/09/2020 How to clean the Print Head English Maintenance FAQs & Troubleshooting