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Brother RJ4030K RuggedJet Direct Thermal Portable Printer - Monochrome Label/Receipt - 5 in/s - 203 dpi - 4" Max Width - USB/Serial/Bluetooth
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Product Features
Technical Overview
The RJ4030K operates on direct thermal technology, eliminating the need for ink or toner cartridges. It supports a maximum print width of 4.09 inches and handles label rolls up to 2.4 inches in diameter. The printer emulates multiple industry-standard languages including ESC/P, ZPL II, Raster, and BPL, ensuring compatibility with a wide range of labeling software and systems.
Power is supplied by an included 14.4V DC lithium-ion battery, with the unit weighing approximately 0.07 ounces for easy portability. The printer is PC-platform supported and backed by a 2-year limited warranty.
This section brings together practical product details such as Recommended Use, Print Color Capability, Maximum Mono Print Speed, Serial Port, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Key Product Advantages
The RJ4030K combines rugged portability with versatile printing capabilities, making it an efficient solution for mobile labeling needs. Its direct thermal operation reduces ongoing supply costs and maintenance, while the included battery and multiple connectivity options support flexible deployment in field service, retail, and logistics environments.
Broad Barcode Support
Supports over 25 barcode symbologies including Code 39, Code 128, EAN-13, UPC-A, QR Code, PDF-417, and Data Matrix, ensuring compatibility with most inventory and shipping systems.
- Code 128
- QR Code
- PDF-417
- Data Matrix
Rugged Design
IP54 certification protects against dust ingress and water splashes, enhancing durability in demanding environments where printers are exposed to elements or frequent handling.
Deployment / Use Cases
This printer is ideal for mobile workers who require on-site label printing for shipping, inventory management, or asset tagging. Its portable design and battery operation make it suitable for field service technicians, delivery drivers, and retail staff who need to print receipts or labels away from fixed workstations.
In retail environments, the RJ4030K can serve as a backup or mobile point-of-sale printer for receipts, or for printing price labels and shelf tags. The support for both label and receipt media, combined with multiple connectivity options, allows integration into various workflows without requiring dedicated power or network infrastructure.
Field Service & Delivery
Print shipping labels, service tags, or delivery receipts directly at customer sites using Bluetooth or USB connectivity with a mobile device or laptop.
Retail & Inventory
Use for mobile price labeling, shelf tagging, or as a portable receipt printer during pop-up sales events or inventory counts.
Physical Profile
The RJ4030K measures 6.93 inches in height, 6.38 inches in width, and 3.03 inches in depth, with a lightweight design that facilitates easy carrying. Its compact footprint allows it to fit on carts, in vehicles, or on crowded countertops. The portable form factor includes an integrated handle or carrying design for transport between locations.
- Width
- 4.09" (103.89 mm)
- Depth
- 3.03" (76.96 mm)
- Height
- 6.93" (176.02 mm)
- Weight
- 0.07 oz (1.87 g)
Highlights
- Direct thermal monochrome printing for labels and receipts
- Portable design with included lithium-ion battery
- Print speed up to 5 inches per second at 203 dpi resolution
- USB, serial, and Bluetooth connectivity options
- Supports over 25 barcode symbologies including QR and Data Matrix
- Maximum print width of 4.09 inches for various label sizes
- IP54 certified for dust and water splash resistance
- Industry-standard language emulation (ESC/P, ZPL II, Raster, BPL)
- PC platform compatible
- Backed by 2-year limited warranty
Specifications
| Specifications | |
|---|---|
| Manufacturer | Brother Industries, Ltd |
| Manufacturer Part Number | RJ4030-K |
| Brand Name | Brother |
| Product Line | RuggedJet |
| Product Model | RJ4030-K |
| Product Name | RuggedJet RJ4030-K Label Printer |
| Product Type | Direct Thermal Printer |
| Technical Information | |
| Recommended Use | Label Print |
| Print Color Capability | Monochrome |
| Maximum Mono Print Speed | 5 in/s (127 mm/s) |
| Maximum Print Resolution (dpi) | 203 |
| Maximum Print Width | 4.09" (103.89 mm) |
| Barcode Symbology Supported | Code 39,Interleaved 2 of 5,EAN-8,EAN-13,UPC-A,UPC-E,UPC 2 or 5 Digit Extension,EAN With 2 or 5 Digit Extension,Codabar,Code 128,GS1-128,UCC/EAN 128,POSTNET,GS1 DataBar,RSS14 Stacked,RSS14 Truncated,RSS-14,RSS14 Stacked Omni,RSS Limited,RSS Expanded,RSS Expanded Stacked,QR Code Model 2,QR code Model 1,QR Code,Maxi Code,PDF-417,Truncated PDF417,Micro PDF-417,Data Matrix ECC Square,Data Matrix ECC Rectangular |
| Interfaces/Ports | |
| Serial Port | Yes |
| USB | Yes |
| Network & Communication | |
| Bluetooth | Yes |
| Media Types & Handling | |
| Media Type | Label,Receipt |
| Maximum Roll Diameter | 2.4" (60.45 mm) |
| Maximum Label Width | 4" (101.60 mm) |
| Fonts & Emulation | |
| Language Emulation | ESC/P,ZPL II,Raster,BPL |
| Power Description | |
| Power Source | Battery |
| Input Voltage | 14.4 V DC |
| Battery Information | |
| Battery Included | Yes |
| Battery Chemistry | Lithium Ion (Li-Ion) |
| Physical Characteristics | |
| Form Factor | Portable |
| Height | 6.93" (176.02 mm) |
| Width | 6.38" (162.05 mm) |
| Depth | 3.03" (76.96 mm) |
| Weight (Approximate) | 0.07 oz (1.87 g) |
| Miscellaneous | |
| Platform Supported | PC |
| Certifications & Standards | IP54 |
| Warranty | |
| Limited Warranty | 2 Year |
FAQ
What type of printing technology does the Brother RJ4030K use?
The Brother RJ4030K uses direct thermal printing technology, which applies heat to specially coated thermal paper to produce monochrome images without ink, toner, or ribbons. This reduces ongoing supply costs and maintenance while providing reliable output for labels and receipts.
What connectivity options are available on this portable printer?
The RJ4030K offers three connectivity options: USB, serial port, and Bluetooth. This allows flexible connection to PCs, mobile devices, and legacy systems, supporting both wired and wireless printing in various deployment scenarios.
What media types can the RJ4030K print on?
This printer supports both label and receipt media types. It handles rolls up to 2.4 inches in diameter with a maximum label width of 4 inches, making it suitable for shipping labels, price tags, and receipt paper in retail and field applications.
Is the battery included with the Brother RJ4030K printer?
Yes, the RJ4030K includes a 14.4V DC lithium-ion battery, providing portable power operation without requiring an external power source. This makes the printer ideal for mobile use in vehicles, at temporary work sites, or during off-grid operations.
What barcode types does this printer support?
The RJ4030K supports over 25 barcode symbologies including linear codes like Code 39, Code 128, and UPC variants, as well as 2D codes such as QR Code, PDF-417, and Data Matrix. This comprehensive support ensures compatibility with most inventory, shipping, and asset tracking systems.
What does the IP54 certification mean for this printer?
IP54 certification indicates the printer is protected against limited dust ingress (level 5) and water splashes from any direction (level 4). This ruggedness makes it suitable for environments where printers may be exposed to dust, moisture, or occasional spills, such as warehouses, delivery vehicles, or outdoor events.
| Qty | Price | Available |
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