Brother RJ-4230B POS printer 203 x 203 DPI Wired & Wireless Direct thermal Mobile printer
Product Technical Specification
Printing | |
Maximum resolution | 203 x 203 |
Print speed | 5 |
Print speed | 127 |
Print technology | Direct thermal |
Type | Mobile printer |
Paper handling | |
Maximum roll diameter | 58 |
Supported paper width | 45 - 113 |
Maximum printing width | 104 |
Maximum media length | 3000 |
Ports & interfaces | |
USB port | Yes |
USB 2.0 ports quantity | 1 |
USB connector | Mini-USB Type-B |
Bluetooth | Yes |
Bluetooth version | 4.2 |
Connectivity technology | Wired & Wireless |
Bluetooth profiles | GATT,HCRP,OPP,SPP |
Near Field Communication (NFC) | Yes |
Standard interfaces | Bluetooth,NFC,USB 2.0 |
Network | |
Ethernet LAN | No |
Wi-Fi | No |
Features | |
Flash memory | 64 |
RAM capacity | 0.256 |
Design | |
Product colour | Black |
Built-in display | Yes |
Display type | LCD |
Power | |
Power source type | Battery,DC |
AC input voltage | 110/220 |
AC input frequency | 50 - 60 |
Battery technology | Lithium-Ion (Li-Ion) |
Battery recharge time | 4 |
Operational conditions | |
Operating temperature (T-T) | -20 - 55 |
Storage temperature (T-T) | -20 - 60 |
Operating relative humidity (H-H) | 10 - 90 |
Storage relative humidity (H-H) | 10 - 90 |
System requirements | |
Windows operating systems supported | Windows 10,Windows 10 Education,Windows 10 Education x64,Windows 10 Enterprise,Windows 10 Enterprise x64,Windows 10 Home,Windows 10 Home x64,Windows 10 IOT Core,Windows 10 Pro,Windows 10 Pro x64,Windows 7,Windows 7 Enterprise,Windows 7 Enterprise x64,Windows 7 Home Basic,Windows 7 Home Basic x64,Windows 7 Home Premium,Windows 7 Home Premium x64,Windows 7 Professional,Windows 7 Professional x64,Windows 7 Starter,Windows 7 Starter x64,Windows 7 Ultimate,Windows 7 Ultimate x64,Windows 7 x64,Windows 8,Windows 8 Enterprise,Windows 8 Enterprise x64,Windows 8 Pro,Windows 8 Pro x64,Windows 8 x64,Windows 8.1,Windows 8.1 Enterprise,Windows 8.1 Enterprise x64,Windows 8.1 Pro x64,Windows 8.1 x64 |
Weight & dimensions | |
Width | 153 |
Depth | 159 |
Height | 68 |
Weight | 850 |
Other features | |
International Protection (IP) code | IP54 |
Rechargeable | Yes |
Delivery Options

Economy Delivery (UK)

Business Express
Tackle the most challenging environments with Brother's 4" mobile label and receipt printer.
Our RJ-4230B mobile printer is fast, compact and extremely rugged. It empowers workers to operate in any environment with speed, accuracy and efficiency.
It has built-in Bluetooth connectivity, printing up to 4" width receipts, quotes, tickets, invoices and labels on demand.
Reliable Connectivity
Provides multiple connectivity options for use in different environments, with USB and Bluetooth (low energy) with MFI capabilities and passive NFC.
Robust Design
The RJ-4230B is our toughest yet, with an IP54 rating and drop tested up to 2.1 metres, providing the ultimate in durability.
Easy to deploy
Using the new Mobile Deploy App, update your printer remotely from any location.
Easy to use
The LCD screen with menu options makes it easy to program as well as a backlight that ensures you can see it in dark conditions.
Seamless Integration
Printer drivers are available for Windows OS and software development kits can be downloaded to support Android and iOS operating systems.
Customisation
We have a wide range of accessories made to suit any environment. See next page.
Brother Font Manager
Brother Font Manager can be used to convert and download fonts in characters or languages not supported by built-in fonts. These can then be stored on a RJ printer and recalled later when printing receipts and labels.
Printing | |
Maximum resolution | 203 x 203 |
Print speed | 5 |
Print speed | 127 |
Print technology | Direct thermal |
Type | Mobile printer |
Paper handling | |
Maximum roll diameter | 58 |
Supported paper width | 45 - 113 |
Maximum printing width | 104 |
Maximum media length | 3000 |
Ports & interfaces | |
USB port | Yes |
USB 2.0 ports quantity | 1 |
USB connector | Mini-USB Type-B |
Bluetooth | Yes |
Bluetooth version | 4.2 |
Connectivity technology | Wired & Wireless |
Bluetooth profiles | GATT,HCRP,OPP,SPP |
Near Field Communication (NFC) | Yes |
Standard interfaces | Bluetooth,NFC,USB 2.0 |
Network | |
Ethernet LAN | No |
Wi-Fi | No |
Features | |
Flash memory | 64 |
RAM capacity | 0.256 |
Design | |
Product colour | Black |
Built-in display | Yes |
Display type | LCD |
Power | |
Power source type | Battery,DC |
AC input voltage | 110/220 |
AC input frequency | 50 - 60 |
Battery technology | Lithium-Ion (Li-Ion) |
Battery recharge time | 4 |
Operational conditions | |
Operating temperature (T-T) | -20 - 55 |
Storage temperature (T-T) | -20 - 60 |
Operating relative humidity (H-H) | 10 - 90 |
Storage relative humidity (H-H) | 10 - 90 |
System requirements | |
Windows operating systems supported | Windows 10,Windows 10 Education,Windows 10 Education x64,Windows 10 Enterprise,Windows 10 Enterprise x64,Windows 10 Home,Windows 10 Home x64,Windows 10 IOT Core,Windows 10 Pro,Windows 10 Pro x64,Windows 7,Windows 7 Enterprise,Windows 7 Enterprise x64,Windows 7 Home Basic,Windows 7 Home Basic x64,Windows 7 Home Premium,Windows 7 Home Premium x64,Windows 7 Professional,Windows 7 Professional x64,Windows 7 Starter,Windows 7 Starter x64,Windows 7 Ultimate,Windows 7 Ultimate x64,Windows 7 x64,Windows 8,Windows 8 Enterprise,Windows 8 Enterprise x64,Windows 8 Pro,Windows 8 Pro x64,Windows 8 x64,Windows 8.1,Windows 8.1 Enterprise,Windows 8.1 Enterprise x64,Windows 8.1 Pro x64,Windows 8.1 x64 |
Weight & dimensions | |
Width | 153 |
Depth | 159 |
Height | 68 |
Weight | 850 |
Other features | |
International Protection (IP) code | IP54 |
Rechargeable | Yes |
Buykingston order despatch times:
We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.
These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).
We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.
Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.
Despatch times do not apply to UK public holidays.
Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.
Our warehouse reserves the right to upgrade the delivery method you select on your order.
Our available delivery options*
Contact us for a shipping quote.
*All delivery times are estimated unless stated.
Product Returns Note
Buykingston offers a very flexible and hassle free returns policy. If
for whatever reason you are not happy with the item purchased you can return
it to us within 12months for a refund (for unused and unopened
items) or within 30 days on opened and used items for a refund. This
applies to items purchased direct through Buykingston only.
Our 30 Day Returns Money Back Guarantee Satisfaction
Guarantee:
For items opened and used and that are returned in a resellable
condition.
Our 365 Day Returns Money Back Guarantee Satisfaction
Guarantee:
For items that remain sealed and unused.
Some items are excluded from our moneyback guarantee unless they have developed a fault. These include;
- Headphones
- Earphones
- Custom made and designed products such as flash memory products with
custom logo’s on them. E,g USB flash drives and memory cards with your own
logo
Returns FAQs
What is your returns criteria?
On opened items 30 days from date of receipt or expected date of receipt on
non tracked items.
On unopened items 365 days.
How do i go about returning my order?
Please contact us via our contact page with
your order number where we will present you with an RMA number and returns
label.
Do i need to contact you before returning my order?
Yes, to obtain an RMA number.
Does my item have to include its original packaging?
Yes for items that fall within our 30 day money back guarantee and our 365
day returns. Of course for faulty items we realise you may no longer have
the packaging.
Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer
direct for assistance.
Please ensure you have read and comply in full with Section 11 & 13 of our terms and conditions which you can read here in full.