Manufacturer | Brother |
Model | TJ4121TNW |
Product Type | Industrial Thermal Label Printer |
Printing Technology | Direct Thermal / Thermal Transfer |
Print Resolution | 300 dpi |
Maximum Print Speed | 7 inches per second |
Form Factor | Desktop Industrial Printer |
Color Capability | Monochrome |
Power Requirements | 100 - 240VAC, 50/60Hz |
Warranty | 2 Years Premier Warranty |
Brother TJ4121TNW 300dpi Thermal Label Printer with LAN/USB



Key Benefits

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- Offers excellent print quality and throughput with 300 dpi resolution and 7 ips speed combination
- Flexible integration with various interfaces ensures compatibility with modern and legacy systems
- Peace of mind and ROI backed by a standard 2-year Premier Warranty from Brother
Product Overview
The Brother TJ4121TNW is a 300 dpi industrial thermal label printer designed for robust commercial and manufacturing environments. It delivers fast 7 ips print speed, sharp resolution, and includes versatile interfaces such as WLAN, LAN, USB, and Serial. A color touch panel enhances usability, while compact dimensions optimize space usage. TAA compliance and a 2-year Premier Warranty round out this reliable printing solution, ensuring high performance and long-term ROI in high-volume workflows.
Specifications
Product Overview
Wireless Features
Wi-Fi Standards | 802.11a/b/g/n/ac |
Wireless Security | WEP, WPA/WPA2-PSK (AES/TKIP), LEAP, EAP-FAST, PEAPv0, PEAPv1, EAP-TLS, EAP-TTLS |
Wireless Frequency Band | 2.4 GHz / 5 GHz |
Antenna | Internal Wi-Fi Antenna |
Compliance & Origin
Country of Origin | Taiwan |
TAA Compliant | Yes |
Certifications | UL, cUL, CE, FCC Class B, RoHS |
Advanced Security Features
Network Security Protocols | SSL, TLS, SNMPv3, IPsec |
User Authentication | 802.1x Authentication |
Access Control | MAC Address Filtering |
Data Protection | Secure Print over SSL |
Interfaces
USB Interface | USB 2.0 Type B |
USB Host | USB Host (Type A) |
Ethernet | 10/100BASE-TX LAN |
Serial Port | RS-232C |
Wireless LAN | 802.11a/b/g/n/ac |
Supported Protocols | IPv4/IPv6, DHCP, FTP, HTTP, SNMP, LPR, BOOTP, TELNET, TCP/UDP |
Physical & Environmental
Width | 9.76 inches (248 mm) |
Depth | 17.17 inches (436 mm) |
Height | 10.79 inches (274 mm) |
Weight | Approximately 18.2 lbs (8.25 kg) |
Operating Temperature | 41°F to 104°F (5°C to 40°C) |
Storage Temperature | -4°F to 140°F (-20°C to 60°C) |
Operating Humidity | 25% to 85% RH (non-condensing) |
Storage Humidity | 10% to 90% RH (non-condensing) |
Display Type | 3.5" Color Touch Panel |
Cloud Management & Licensing
Remote Management Capability | Yes—via Brother Web-Based Management |
Included Software | Brother Printer Management Tool, BarTender UltraLite |
Firmware Update Options | Over network or USB |