RJ-4230B 4 inch Mobile Printer

Rugged 4 inch mobile label/receipt printer with USB and Bluetooth connectivity.

Product Details

  • Rugged construction (2.1m drop protection) with reinforced parts and moulded rubber housing engineered for improved toughness (IP54 rated out of the box for dust and moisture exposure).
  • Smart Li-ion Battery (option) Industry leading battery life to last a full shift and indicator for health status.
  • Fast print speeds of up to 5ips.
  • Optional Accessories. Extra batteries, shoulder strap, belt clip, vehicle mount, power options, single battery charger and more.
  • Make updates and configurations to the printer in the field, using the new Brother Mobile Deploy app
  • Compatibility: Windows®, iOS®, and Android™

Product Overview

Rugged mobile printing – whatever the conditions

The RJ-4230B mobile printer is fast, compact and extremely rugged. It empowers workers to operate in any environment with speed, accuracy and efficiency.

This mobile label and receipt printer raises the industry standard with a smart new way to manage and deploy printers, housing design and market leading technology, performance, ruggedness and connectivity. This fast mobile printing solution is designed to meet the needs of the busy workforce. Print labels, tags, invoices, quotes, receipts, and more on the spot, with convenient Bluetooth connectivity that saves valuable time.



Memory FLASH, 64MB, RAM, 256MB
Technology Direct thermal


Bluetooth Yes (Ver 4.2)
Bluetooth Profiles OPP (Object Push Profile), SPP (Serial Port Profile), GATT (Bluetooth Low Energy), HCRP (Hard Copy Cable Replacement Profile)
USB interface USB 2.0 Full Speed

Dimensions and weights

Dimensions 153mm (W) x 159mm (D) x 68mm (H)
Weight 0.850

In the box

In the box Quick Setup Guide (QSG), Belt Clip, Mobile printer

Operating Environment

Operating Humidity 10% - 90%
Operating Temperature 0°C - 40°C
Storage Humidity 10% - 90%
Storage Temperature -20°C - 60°C
Sealing IP54 without case

Operating systems & software

Supported Operating Systems For the full list of compatible operating systems visit support.brother.com


Maximum Print Length 3000mm
Resolution 203


SDK (Software Development Kit) Yes


SDK (Software Development Kit) Yes


Warranty 3 years
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Software Security Updates Guarantee

Brother devices conform to The Product Security and Telecommunications Infrastructure (Security Requirements for Relevant Connectable Products) Regulations 2023 and receive guaranteed software security updates until at least five years after the device is last in production.

After the initial support period, Brother shall use all reasonable endeavours to provide software updates for as long as reasonably practicable.

If you already own a Brother device, visit support.brother.com for information specific to your device.