| Product Type | Industrial Thermal Transfer Label Printer |
| Model | TJ4021TN |
| Manufacturer Part Number | TJ4021TNC |
| Print Technology | Thermal Transfer |
| Print Resolution | 203 dpi |
| Print Speed | 10 inches per second |
| Print Width | Up to 4.09 inches (104 mm) |
| Display Type | Color Touchscreen |
| Display Size | 4.7 inches |
| RAM Installed | 128 MB |
| Flash Memory | 128 MB |
| Cutter Type | Built-in Cutter |
| Color Output | Monochrome |
| Weight | 9.4 kg |
| Form Factor | Desktop Industrial Printer |
| Power Requirements | 100 - 240 VAC, 50/60 Hz |
| Power Supply Type | Internal |
Brother TJ4021TN 4.7" Industrial TT Label Printer with Cutter, 203dpi, USB/LAN

Key Benefits
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- Ideal for industrial environments requiring high-speed, high-volume label printing with 10ips output and 203dpi resolution.
- Offers broad system compatibility across Windows, Linux, macOS, Android, and iOS platforms, ensuring easy deployment.
- Backed by a two-year Premier Warranty from Brother, adding value through extended hardware support and reliability.
Product Overview
The Brother TJ4021TN is a robust industrial thermal transfer label printer designed for high-volume use, delivering 203dpi resolution at up to 10 inches/sec. Its 4.7-inch color touch screen allows for intuitive operation, while versatile connectivity includes USB, Host-USB, LAN, Serial, and WLAN. Compatible with Windows, Linux, Android, and iOS, the device is ideal for cross-platform industrial deployments. With its ENERGY STAR® certification and TAA compliance, it is suited for both commercial and government use. A 2-year Premier Warranty ensures long-term support and dependability.
Specifications
Product Overview
Wireless Features
| Wi-Fi Capability | Supported |
| Wireless Communication Standards | 802.11a/b/g/n |
Compliance & Origin
| Energy Star Certified | Yes |
| Country of Origin | Taiwan |
| TAA Compliant | Yes |
| Certifications | CE, FCC Class A, UL, CB, cULus |
Advanced Security Features
| Network Security Protocols | HTTPS, SNMPv3, WPA/WPA2 |
| Authentication Support | 802.1x, LDAP |
Interfaces
| USB | Yes |
| USB Host | Yes |
| Serial Port | Yes |
| LAN (Ethernet) | Yes |
| WLAN (Wi-Fi) | Yes |
| Supported Interfaces | USB, Serial, LAN, WLAN, USB Host |
Physical & Environmental
| Width | 9.76 inches (248 mm) |
| Depth | 10.79 inches (274 mm) |
| Height | 17.17 inches (436 mm) |
| Operating Temperature | 41°F to 104°F (5°C to 40°C) |
| Storage Temperature | -4°F to 122°F (-20°C to 50°C) |
| Operating Humidity Range | 25% to 85% (non-condensing) |
| Storage Humidity Range | 10% to 90% (non-condensing) |
Cloud Management & Licensing
| Remote Management | Supported via web interface |
| Platform Support | Windows, Linux, Mac OS, Android, iOS |