Brother MFC-J5945DW Printer — LC3337 & LC3339XL Ink Cartridges (Black, Cyan, Magenta, Yellow)
Keep your Brother MFC-J5945DW running reliably with genuine Brother LC3337 high-yield and LC3339XL extra high-yield ink cartridges in Black, Cyan, Magenta and Yellow from Inkjet Online.
These high-capacity inks are designed for business-style workloads, delivering sharp text, vibrant colour and predictable running costs for busy homes and small office environments.
Ink for Brother MFC-J5945DW Printer
The Brother MFC-J5945DW uses Brother LC3337 high-yield and LC3339XL extra high-yield ink cartridges in Black, Cyan, Magenta and Yellow. These long-life cartridges are designed for business-style printing, combining high page yields with professional output and dependable performance.
We also stock USB printer cables compatible with the MFC-J5945DW. A USB connection is useful for initial setup or where wireless connectivity is unreliable, providing a stable, direct link between your printer and computer.
Brother LC3337 / LC3339XL Ink Cartridge FAQ
What ink cartridges does my Brother MFC-J5945DW use?
The Brother MFC-J5945DW uses LC3337 high-yield and LC3339XL extra high-yield ink cartridges in Black, Cyan, Magenta and Yellow. These same cartridges are also used in selected other MFC-J models within the LC3337 / LC3339XL series.
What is the difference between LC3337 and LC3339XL?
Both cartridge series fit the MFC-J5945DW:
• LC3337 (high-yield) – high-capacity cartridges suitable for regular
office and home printing.
• LC3339XL (extra high-yield) – even larger capacity, ideal for
high-volume printing and the best cost per page over time.
Why should I use genuine Brother ink?
Genuine Brother ink is engineered for the printhead and firmware used in the MFC-J5945DW. It helps maintain colour accuracy, reduces the risk of clogging, supports accurate ink level monitoring and ensures cleaning cycles operate correctly.
What is firmware and why is it important?
Firmware is the internal software that controls your printer’s
functions, including print quality, ink detection, security and maintenance routines.
Keeping firmware updated can:
• Improve reliability and performance
• Fix known bugs and errors
• Maintain security features
• Ensure new cartridges are recognised correctly
Genuine LC3337 / LC3339XL cartridges are designed to remain compatible after firmware
updates, while non-genuine cartridges may stop working or show errors.
Can I use generic LC3337 / LC3339XL cartridges?
Generic cartridges may fit but can cause issues such as:
• “Cannot Detect Ink” or related error messages
• Loss of compatibility after a firmware update
• Reduced print quality or streaky prints
• Greater risk of printhead clogging
For the most reliable performance, we recommend genuine Brother cartridges.
Does the Brother MFC-J5945DW support USB printer cables?
Yes. The MFC-J5945DW supports USB connection. A USB cable gives a stable, direct link to your computer and is useful during setup or when Wi-Fi is not available.
What are the benefits of buying Brother ink online?
Buying online allows you to compare LC3337 and LC3339XL cartridges easily, check compatibility with the MFC-J5945DW and reorder ink when needed. Inkjet Online ships from Adelaide, Melbourne, Sydney, Brisbane and Perth for convenient delivery across Australia.
How can I keep my Brother inkjet printer running smoothly?
For reliable performance:
• Use genuine Brother LC3337 or LC3339XL ink
• Print every 1–2 weeks to keep the printhead clear
• Allow firmware updates when prompted
• Keep the printer powered on so maintenance cycles can run
• Store cartridges and paper away from heat and direct sunlight
Benefits of Buying Brother Supplies from Inkjet Online
Genuine Brother Quality
Choose genuine Brother LC3337 and LC3339XL ink cartridges for clear text, vibrant colour and reliable performance in supported MFC-J series printers.
Perfect Compatibility
All Brother inks and USB cables are clearly matched to your printer model, making it easy to order the correct LC3337 / LC3339XL cartridges and accessories.
Fast Australian Dispatch
Orders ship quickly from warehouses in Adelaide, Melbourne, Sydney, Brisbane and Perth for reliable delivery across Australia.
Expert Support
Need help choosing between LC3337 and LC3339XL, or checking compatibility? Our team can guide you to the right Brother ink and accessories.
Brother MFC-J5945DW Overview
The Brother MFC-J5945DW is a flexible colour inkjet multifunction printer designed for home offices and small business environments. It combines printing, copying, scanning and fax functions with efficient paper handling and automatic duplex printing to help reduce paper consumption.
Using Brother LC3337 high-yield and LC3339XL extra high-yield cartridges in Black, Cyan, Magenta and Yellow, the MFC-J5945DW is built for users who need dependable output and strong page yields. Genuine Brother ink helps maintain crisp text, accurate colours and consistent results over time.
Connectivity options typically include Wi-Fi, Ethernet and USB, allowing you to print directly from computers, laptops and supported mobile devices. Many MFC-J models also support mobile and cloud printing workflows to make everyday printing more convenient.
For the best experience, use genuine Brother ink cartridges so that firmware, ink detection and cleaning cycles continue to work as designed. Empty cartridges can usually be recycled through local cartridge recycling programs in Australia. You can explore more Brother inks, labels and printers at Inkjet Online.
Brother LC3337 / LC3339XL Printer Series
The following Brother MFC-J printers use LC3337 high-yield and LC3339XL extra high-yield ink cartridges in Black, Cyan, Magenta and Yellow. Select your model to view compatible inks and accessories.