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Compact portable receipt printer with rubberised housing, drop-in paper loading, no battery installed

Brother

Brother RJ4230B Receipt Printer No Battery

SKU CH-R9DB-XC9S3 MPN RJ4230B

Portable direct-thermal printer produces receipts and labels up to 4 inches wide at 5 in/s with 203 dpi resolution and 256 MB memory

  • Print TechnologyDirect Thermal
  • Printer TypePortable
  • Print Speed5 in/s
  • Max Resolution(B&W)203 dpi
  • Memory256 MB
  • Media TypeTag Label Receipt
  • Direct thermal printing at 5 in/s for fast output
  • 203 dpi resolution delivers clear text and graphics
  • IP54 rated and 6.88 ft drop tested for rugged use
  • 256 MB memory supports fonts and remote deploy
  • Light 2.43 weight enables all-day mobile carry

Mobile receipt printer for field service

The Brother RJ4230B is a direct-thermal portable printer built for mobile workers who need to produce receipts, tags, labels or invoices on site. It accepts media from two to four inches wide and loads via a drop-in mechanism. Bluetooth connectivity pairs quickly with phones or tablets. The unit ships without a battery, so a separate power source is required for operation.

Sustained printing at five inches per second

The print engine maintains 5 in/s continuously rather than only in short bursts, keeping queues moving during busy shifts. With 256 MB of onboard memory it buffers larger jobs without stalling. Resolution stays at 203 dpi across long runs, so barcodes and text remain scannable. The printer handles mixed label and receipt formats without reconfiguration delays.

IP54 rating limits dust and moisture ingress

The moulded rubber housing meets IP54, protecting internals from splashes and particulates in normal outdoor or warehouse use. Drop protection is rated to 6.88 ft onto concrete, reducing downtime from accidental impacts. At 2.43 lb the chassis stays rigid without adding bulk. No active cooling fan means silent operation in quiet environments.

Highlights

  • Direct thermal printing at 5 in/s for fast output
  • 203 dpi resolution delivers clear text and graphics
  • IP54 rated and 6.88 ft drop tested for rugged use
  • 256 MB memory supports fonts and remote deploy
  • Light 2.43 weight enables all-day mobile carry

Specifications

BrandBrother
Print TechnologyDirect Thermal
Printer TypePortable
Print Speed5 in/s
Max Resolution(B&W)203 dpi
Memory256 MB
Media TypeTag Label Receipt
Weight2.43
Shipping weight1.10 kg
Package size245 × 186 × 121 mm

Questions about this item

How loud is the RJ4230B when it prints continuously at 5 in/s all day?

The printer runs at 5 in/s with direct thermal technology, which has no ink ribbon or impact mechanism, so operational noise stays low during extended use.

What must I already own to power the RJ4230B since no battery is included?

You need a compatible Brother Li-ion battery pack and its charger; the unit ships without either, so both must be sourced separately before first use.

Will the RJ4230B pair with my older Windows Mobile handheld over Bluetooth?

The printer supports Bluetooth pairing and the free Mobile Deploy app handles configuration, so legacy devices that implement standard Bluetooth printing profiles can connect.

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