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The Brother MFC-J4340DW is a colour inkjet all-in-one for printing, copying, scanning and faxing. The UK/European model combines wireless and mobile connectivity with a 20-sheet automatic document feeder (ADF), a 150-sheet paper tray and automatic two-sided printing. Those specifications make it a plausible home-office fit, but Brother’s published speed and ink-yield figures are not independent test results, and actual running cost depends on cartridge prices and what you print.
What is the Brother MFC-J4340DW?
Brother’s UK listing describes the MFC-J4340DW as a four-function colour inkjet printer: it prints, copies, scans and faxes. It also lists wireless and mobile connectivity. The combination suits a home office that needs document handling as well as occasional colour output, rather than a device for printing alone. Brother’s UK product page gives the feature list for that regional model.
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Country matters. The available documentation chiefly covers the UK/European configuration; suffixes, power, connectivity, supported paper formats and ink series can differ by market. Check the official Brother page for your country and confirm cartridge compatibility before buying.
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Paper capacity and multi-page scanning
The standard tray holds 150 sheets, and the ADF holds 20 sheets, according to Brother’s UK listing. The ADF is intended to feed multiple pages for scanning, copying or faxing without placing each sheet individually on the glass. Its capacity is modest, so larger batches will need to be split into smaller loads. The data sheet also lists a single-sheet manual feed. Brother’s specifications for the MFC-J4340DW family document the paper handling details.
#1 Best Overall
- FROM AMERICA'S MOST TRUSTED PRINTER BRAND – The OfficeJet Pro 8125 is perfect for home offices printing professional-quality color documents like business documents, reports, presentations and flyers. Print speeds up to 20 ppm black, 10 ppm color.
- 3 MONTH TRIAL OF INSTANT INK INCLUDED – Subscribe to the Instant Ink delivery service to get ink delivered directly to your door before you run out, and you save up to 50% on ink; after 3 months, a monthly fee applies unless cancelled
- KEY FEATURES – Fast color printing, scan, copy, auto 2-sided printing, auto document feeder, and a 225-sheet input tray
- 2.7-INCH TOUCHSCREEN – Quickly navigate your printer with a large color touchscreen and a phone-like user interface
- WIRELESS PRINTING – Stay connected with our most reliable dual-band Wi-Fi, which automatically detects and resolves connection issues
Duplex printing
Yes. The UK model supports automatic two-sided printing. Brother lists A4 duplex speeds of up to 11 images per minute (ipm) in mono and 10 ipm in colour. Duplex support refers to printing on both sides; the cited specification does not establish automatic two-sided scanning through the ADF.
Paper sizes and feed paths
Supported paper sizes and weights vary between the main tray, manual feed, ADF, scanner glass and automatic duplex path. A size or media type accepted by one route is not necessarily supported by another. Before planning envelopes, photo paper or other specialist media workflows, consult the local model’s documentation rather than assuming every feed path handles it.
Rank #2
- PERFECT FOR BASIC PRINTING NEEDS – Print everyday color documents like to-do lists, letters, financial documents and recipes
- KEY FEATURES – Color print, copy, scan, and a 60-sheet input tray, plus mobile and wireless printing
- OPTIMIZE PRINT FORMATTING WITH HP AI – Print web pages and emails with precision—no wasted pages or awkward layouts; HP AI easily removes unwanted content, so your prints are just the way you want
- ICON LCD – Print your basic documents with ease from the intuitive control panel
- PRINT SPEED – Up to 7.5 ppm black, 5.5 ppm color
How fast does the MFC-J4340DW print?
Brother’s UK product page rates one-sided A4 printing at up to 20 ipm in mono and 19 ipm in colour; it rates two-sided printing at up to 11 ipm mono and 10 ipm colour. Brother says its one-sided figures use the ISO/IEC 24734 method. These are manufacturer ratings, not independently measured results, and should not be read as a guarantee of the speed for every document or setting. Brother UK’s product listing provides the stated rates; its MFC-J4340DW data sheet sets out further product specifications.
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What ink does the Brother MFC-J4340DW take?
For the UK/European configuration documented by Brother, replacement cartridges are from the LC426 series: black, cyan, magenta and yellow. Brother lists standard LC426 cartridges and higher-yield LC426XL versions. Confirm the series for your country and exact model variant before ordering. Brother’s supply specifications name the compatible cartridges and estimated yields.
Rank #3
- Wireless Print/Copy/Scan
- Up to 2 years of ink included (2)
- Print up to 6,000 black & white / 7,700 color pages using a single set of inks! (1)
- Save up to $1,000 on ink (1)
- 1.35” Square LCD display
| Cartridge | Approximate listed yield | Measurement context |
|---|---|---|
| LC426 black | 3,000 pages | Brother’s approximate replacement-cartridge yield under ISO/IEC 24711 |
| LC426 colour (cyan, magenta or yellow) | 1,500 pages | Brother’s approximate replacement-cartridge yield under ISO/IEC 24711 |
| LC426XL black | 6,000 pages | Brother’s approximate replacement-cartridge yield under ISO/IEC 24711 |
| LC426XL colour (cyan, magenta or yellow) | 5,000 pages | Brother’s approximate replacement-cartridge yield under ISO/IEC 24711 |
These yields are estimates made using a standard test method, not promises of a particular number of pages in ordinary use. Coverage, document content and print settings affect how long cartridges last. The first cartridge set also supplies ink to fill the delivery tubes. Brother says included cartridges may yield about 75% of the replacement LC426 black figure and 65% of the replacement LC426 colour figure; that is a model-specific estimate, not a guaranteed count. Brother’s supply specifications explain this initial ink use.
How much does it cost to run?
The cartridge yields alone cannot establish a cost per page: that also requires current cartridge prices in your country and assumptions about the mix and coverage of printed pages. Compare local prices for the cartridge sizes you expect to buy, using black and colour costs separately, and account for the lower estimated yield of the included set during initial setup. Prices and availability can change, so check a local retailer or Brother’s local store before purchase.
Rank #4
- Affordable Versatility - A budget-friendly all-in-one printer perfect for both home users and hybrid workers, offering exceptional value
- Crisp, Vibrant Prints - Experience impressive print quality for both documents and photos, thanks to its 2-cartridge hybrid ink system that delivers sharp text and vivid colors
- Effortless Setup & Use - Get started quickly with easy setup for your smartphone or computer, so you can print, scan, and copy without delay
- Reliable Wireless Connectivity - Enjoy stable and consistent connections with dual-band Wi-Fi (2.4GHz or 5GHz), ensuring smooth printing from anywhere in your home or office
- Scan & Copy Handling - Utilize the device’s integrated scanner for efficient scanning and copying operations
Brother’s UK product listing presents EcoPro, a recurring ink replenishment service. Its presence on the UK page does not establish eligibility or subscription terms elsewhere. For UK availability and current fees, page allowances, trial and cancellation terms, check the service details on the Brother UK EcoPro page.
What the published specifications cannot tell you
The cited material is manufacturer documentation. It does not establish independent print-quality results, real-world speed, noise, long-term reliability or performance against competing printers. Treat the stated speeds and yields as Brother’s figures, and weigh them against your own needs for ADF capacity, paper handling, duplex printing and locally available ink. Without comparable independent testing and current local prices, there is no sound basis here to call the MFC-J4340DW faster, cheaper or better than a rival.
Quick Recap
Best Value
- Affordable Versatility - A budget-friendly all-in-one printer perfect for both home users and hybrid workers, offering exceptional value
- Crisp, Vibrant Prints - Experience impressive print quality for both documents and photos, thanks to its 2-cartridge hybrid ink system that delivers sharp text and vivid colors
- Effortless Setup & Use - Get started quickly with easy setup for your smartphone or computer, so you can print, scan, and copy without delay
- Reliable Wireless Connectivity - Enjoy stable and consistent connections with dual-band Wi-Fi (2.4GHz or 5GHz), ensuring smooth printing from anywhere in your home or office
- Seamless Multi-Page Handling - Tackle multi-page documents with ease using the Auto Document Feeder (ADF) for quick scanning and copying
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
