| Model | RJ4230BL |
| Width | 6.02 Inch |
| Depth | 6.26 Inch |
| Height | 2.68 Inch |
Brother RuggedJet RJ4230BL Mobile 4" Direct Thermal Printer

Key Benefits
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- Offers reliable mobile printing with multiple connectivity options including NFC and Bluetooth MFi, ideal for dynamic field operations
- Enhanced productivity with included accessories and long-life Li-Ion battery ensures minimal downtime out of the box
- Backed by a 2-Year Premier Warranty, providing added peace of mind and support for long-term deployments
Product Overview
The Brother RuggedJet RJ4230BL is a compact, durable mobile printer built to deliver efficient and reliable direct thermal printing in challenging work environments. Supporting up to 4-inch print widths, this device is engineered for portability and flexibility with connectivity options that include USB, serial, Bluetooth MFi, and NFC. This robust feature set allows it to seamlessly integrate with Windows, Android, and iOS systems, enhancing field operations across transportation, warehousing, retail, and field service sectors.
With a print resolution of 203 dpi, 256 MB RAM, and 64 MB integrated storage, the RJ4230BL delivers crisp monochrome outputs suitable for receipts, labels, and tags. The lightweight form factor—just 2.68 inches in height—along with support for both Bluetooth MFi and NFC pairing, ensures fast setup and minimal downtime. Included with your purchase are a high-capacity Li-Ion battery, documentation set, media roll holder, and a 2-Year Premier Warranty, which together ensure a worry-free mobile printing experience.
This device is optimized for professionals requiring mobile productivity tools that uphold performance in rugged conditions. Its TAA-non-compliant status and Chinese country of origin may affect some deployment scenarios, but for most enterprise and field uses, the RJ4230BL offers outstanding operational value and seamless integration into mobile workflows.
Specifications
Dimensions&Miscellaneous
Media
| Printer / Media Type | Receipts, Labels, Tags |
| Print Max Resolution ( B&W ) | 203 dpi |
| RAM / Total Installed Size | 256 MB |
| Printer Color Type | Monochrome |
Service&Support
| Manufacturer Warranty | 2 Years |
UNSPSC Code
| UNSPSC Code | 43212108 |
System Requirements
| System Requirement | Windows 10 (32/64bit), Windows 8 (32/64bit), Windows 7 (32/64bit), Windows Vista (32/64bit), Android v2.2 or later, iOS v6.0 or later |
Printer
| Printer Type | Mobile Printer |
| Printer Technology | Direct Thermal |
| Printer Interface | NFC; Bluetooth; USB |
| Hard Drive Capacity / HDD | 64 MB |
Power / Battery
| Power / Voltage Required | 15VDC 4.0A |
Special Feature
| COO | CHINA |
| TAA compliance | No |
Networking
| Interfaces & Connections | USB (Mini), Serial, Bluetooth Mfi, Bluetooth, NFC |
Why buy from Eye-In Technologies?
Since 2003, the Eye-In team has supplied and supported large-scale deployments coast to coast. Eye-In Technologies is our dedicated online storefront—built for easy purchasing, quote requests, and dependable follow-through. We offer US + Canada coverage, volume pricing for projects, a documented RMA process, and direct support.