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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

  • Memory size256 MB
  • Printing methodDirect Thermal
  • Printer categoryPortable
  • Printing speed5 in/s
  • Max monochrome resolution203 dpi
  • Media formatTag 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.

How it compares

Measured against everything we stock in Thermal Receipt Printers, at today’s prices. Recalculated every night.

Price $551.99
Pricier than about 87% of the 201 comparable items (median $254.99).
Memory size 256 MB
Higher than about 99% of the 24 comparable items (median 0.02 GB).

Specifications

Product
Brand nameBrother
Printer categoryPortable
Performance
Printing speed5 in/s
Max monochrome resolution203 dpi
Memory
Memory size256 MB
Size & build
Shipping weight1.10 kg
Package size245 × 186 × 121 mm
More details
Printing methodDirect Thermal
Media formatTag Label Receipt

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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