This English quick guide is based on the Korean catalog. Confirm model-specific compatibility and installation details on the manufacturer’s official page.
Download RJ-4230B driver
- Match the full model number on the device label, including suffixes.
- Check your operating-system version and architecture on the official support page.
- Check the first failed job and preserve work you still need before changing the driver.
- Follow the manufacturer’s instructions for power, USB, and network connections.
Model and driver source
This guide is for the label printer model Brother RJ-4230B. The download button opens the official Brother support page in this window. The manufacturer’s page is authoritative for the available driver packages and their current compatibility.
Operating-system and download checks
The exact US download portal currently offers Windows, Linux and Mobile selection categories. Windows ARM drivers are explicitly unavailable; these categories do not certify every package or CPU. Select your exact operating system and version on the official page. If your version is not offered, do not install a package intended for a different system.
Connection and installation
- Open the official support page and choose the matching model and operating system.
- Download the manufacturer-provided package and follow its installation prompts.
- At the connection step, follow the exact mini-USB order below or the documented Bluetooth path. Wi-Fi instructions in the shared manual apply to RJ-4250WB.
- Compare the printer-generated report with a label or receipt from your application.
Check RJ-4230B connections
The shared manual covers RJ-4250WB too, but its Wi-Fi, Wireless Direct and WPS sections apply only to that model. Use the RJ-4230B USB/Bluetooth paths below.
| Check | Evidence and next check |
|---|---|
| USB | This is the computer mini-USB path. At the applicable installer connection step, switch the printer off, connect its USB cable to the printer and computer, then switch it on. |
| Bluetooth | Use Menu/Select → Bluetooth → Feed/OK → On/Off → On, then select the actual RJ-4230B on the host. In the default Classic & LE mode, Android may show two identical names; this alone does not establish a fault. |
Official USB procedure (PDF 35) · Bluetooth procedure (PDF 36)
Printer report on a 102 mm roll
A printer-generated information report helps separate device output from a PC job. The manual specifies a 4-inch (102 mm) continuous receipt roll.
- Load the specified 102 mm continuous receipt roll and close the roll compartment cover.
- Turn on the printer.
- Hold Feed/OK until Printing appears on the LCD. Use the displayed state; the procedure does not specify an arbitrary number of seconds or a power/menu combination.
Available report items include version, missing-dot pattern and settings, depending on the existing Device Settings selection. A network/MAC-address label does not prove a Wi-Fi or Ethernet port on RJ-4230B. Printing this report differs from resetting the printer or entering Mass Storage mode.
Official report procedure (PDF 90)
Media, cover and battery messages
| Check | Evidence and next check |
|---|---|
| Media Error! Check Loading | Compare the selected media type and size with the loaded die-cut labels or continuous roll. Check loading and remaining media before changing sensor calibration. |
| Cover Open Close Cover | Check that the roll compartment cover is properly closed. |
| Recharge Battery! | This indicates a low battery charge. Follow the specified AC/car-adapter charging instructions; do not substitute an improvised power connection. |
| System Error! XX | Record the actual display and contact Brother support. XX is the manual’s placeholder, not a verified numeric fault code. |
Official media/cover messages (PDF 169) · Battery/system messages (PDF 170)
Official evidence and scope
Checked 2026-11-01. These connection, report and selected-message facts were compared with User’s Guide 05, listed 28 March 2019 on the US portal. PDF pages are one greater than printed pages. This is a scoped manual audit; compare your actual OS, CPU and application with the current download page.
Installation, printing, pairing, sensor adjustment, resetting and firmware updating were not performed.
Brother RJ-4230B not printing: check possible causes
Use the actual RJ-4230B display, roll, USB/Bluetooth path and printer report to separate device faults from PC software problems.