TD-4550DNWB / 4550DNWB(FC) FAQs & Troubleshooting TD-4550DNWB / 4550DNWB(FC) Not your product? Sort by Updated Date Popularity 2 Results 1. 21/08/2024 How to identify the printer's firmware version 2. 14/02/2024 I cannot print after updating the firmware or font data. More FAQs (English only) Software FAQs & Troubleshooting