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Brother RJ4040-K RuggedJet Direct Thermal Label Printer - Portable - Monochrome - 5 in/s - 203 dpi - USB/Serial/Wireless LAN - Battery - IP54
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Product Features
Technical Overview
The RJ4040-K operates on direct thermal technology, eliminating the need for ink or toner. It prints at a resolution of 203 dpi and a speed of up to 5 inches per second, producing sharp, legible text and barcodes suitable for professional applications.
Connectivity is comprehensive, with USB, serial, and IEEE 802.11b/g/n wireless LAN interfaces. This allows for flexible integration into existing systems, from legacy serial-based setups to modern wireless networks. The printer includes 32 MB of standard memory and 16 MB of flash memory for handling print jobs and firmware.
This section brings together practical product details such as Recommended Use, Print Color Capability, Maximum Mono Print Speed, Standard Memory, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Key Product Advantages
The RuggedJet RJ4040-K combines portability with industrial-grade toughness, offering distinct advantages for mobile and harsh operational settings.
Rugged Design for Mobile Use
With an IP54 rating for protection against dust and water ingress, along with drop resistance, this printer withstands the rigors of warehouse floors, delivery vehicles, and outdoor job sites.
- IP54 certified
- Water, dust, and drop resistant
- Portable form factor
Flexible Connectivity Options
Support for USB, serial, and wireless LAN ensures compatibility with a wide array of devices and systems, from desktop PCs and legacy POS terminals to modern smartphones and tablets.
- USB, serial, and Wi-Fi connectivity
- IEEE 802.11b/g/n wireless standard
- Broad device compatibility
Versatile Media Handling
Accepts labels, receipts, and fanfold media up to 4 inches wide, with support for an extensive list of barcode symbologies, making it adaptable for retail, logistics, and labeling tasks.
- Labels, receipts, fanfold media
- Wide barcode support
- 4" maximum label width
Deployment / Use Cases
The Brother RJ4040-K is designed for scenarios where reliable, on-the-spot label and receipt printing is critical. Its portable and rugged nature makes it ideal for dynamic work environments.
Common applications include mobile retail and pop-up stores for printing receipts and price tags, warehouse and logistics operations for shipping labels and inventory tags, and field service teams for asset identification and work orders. The wireless capability further enhances mobility, allowing printing from handheld devices without cable constraints.
Retail & Point-of-Sale
Print receipts, price labels, and barcodes directly at the point of transaction, whether at a fixed counter or a mobile cart.
Logistics & Warehousing
Generate shipping labels, pallet tags, and inventory control labels on the warehouse floor or in delivery vehicles.
Physical Profile
The RJ4040-K features a compact portable design, measuring 6.93" (H) x 6.38" (W) x 3.03" (D) and weighing approximately 0.07 oz. Its small footprint and light weight make it easy to carry or mount in tight spaces, while the included Li-Ion battery supports cordless operation for true mobility in the field.
- 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
- Portable direct thermal label printer for monochrome label and receipt printing.
- Prints at speeds up to 5 inches per second with 203 dpi resolution for sharp output.
- Rugged IP54 rating provides resistance to water, dust, and drops.
- Connect via USB, serial, or IEEE 802.11b/g/n wireless LAN for flexible setup.
- Battery-powered with included 14.4V DC Li-Ion battery for cordless mobility.
- Supports labels, receipts, and fanfold media up to 4 inches in width.
- Extensive barcode symbology support for retail, shipping, and inventory applications.
- Compatible with Windows, Windows Server, Windows CE/Mobile, and Android operating systems.
- Compact dimensions: 6.93"H x 6.38"W x 3.03"D, lightweight for easy portability.
- Backed by a 2-year limited warranty for added reliability assurance.
Specifications
| Specifications | |
|---|---|
| Manufacturer | Brother Industries, Ltd |
| Manufacturer Part Number | RJ4040-K |
| Brand Name | Brother |
| Product Line | RuggedJet |
| Product Model | RJ4040-K |
| Product Name | RuggedJet RJ4040-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 |
| Features | Water Resistant,Dust Resistant,Drop Resistant |
| Memory | |
| Standard Memory | 32 MB |
| Flash Memory | 16 MB |
| Interfaces/Ports | |
| Serial Port | Yes |
| USB | Yes |
| Network & Communication | |
| Wireless LAN | Yes |
| Wireless LAN Standard | IEEE 802.11b/g/n |
| Media Types & Handling | |
| Media Type | Label,Receipt,Fanfold |
| 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 |
| Software | |
| Operating System Supported | Windows, XP, Windows Vista, Windows 7 (RJ-4030/4040); Windows Server 2003, 2008, 2008R2 (RJ-4040 only); Windows CE 5.0 & higher, Windows Mobile 5.0 & higher, Android 2.2 & higher |
| 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 RJ4040-K use?
The Brother RJ4040-K uses direct thermal printing technology. This method uses heat-sensitive paper or labels, eliminating the need for ink, toner, or ribbons. It produces monochrome prints and is known for its reliability and low maintenance in label and receipt printing applications.
Is this printer suitable for outdoor or harsh environments?
Yes, the RJ4040-K is designed with ruggedness in mind. It carries an IP54 certification, meaning it is protected against limited dust ingress and water splashes from any direction. It is also rated as drop resistant, making it suitable for use in warehouses, delivery vehicles, and other demanding mobile or industrial settings.
What connectivity options are available on the RJ4040-K?
The printer offers multiple connectivity options: a USB port, a serial port, and wireless LAN supporting the IEEE 802.11b/g/n standard. This combination allows you to connect to modern computers via USB or Wi-Fi, or to legacy systems and point-of-sale terminals using the serial interface.
Can I print from mobile devices like smartphones or tablets?
Yes, the wireless LAN capability enables printing from compatible mobile devices. The printer supports operating systems including Android 2.2 and higher, as well as Windows CE 5.0+/Windows Mobile 5.0+, allowing you to print labels and receipts directly from handheld scanners, tablets, or smartphones on the same network.
What media sizes and types can this printer handle?
The RJ4040-K handles label, receipt, and fanfold media types. The maximum print width is 4.09 inches, and it supports label rolls with a maximum width of 4 inches and a maximum roll diameter of 2.4 inches. This makes it suitable for standard shipping labels, retail price tags, and receipt paper.
What is the warranty period for the Brother RuggedJet RJ4040-K?
Brother provides a 2-year limited warranty for the RJ4040-K RuggedJet direct thermal printer. This warranty covers defects in materials and workmanship under normal use, offering peace of mind for business and institutional deployments.
| Qty | Price | Available |
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