Brother MFC-J6945DW Printer — LC3337 & LC3339XL Ink Cartridges (Black, Cyan, Magenta, Yellow)
Keep your Brother MFC-J6945DW running smoothly 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 cartridges are designed for higher-volume printing, delivering sharp text, vivid colour and cost-effective performance for busy home offices and small business environments.
Ink for Brother MFC-J6945DW Printer
The Brother MFC-J6945DW uses Brother LC3337 high-yield and LC3339XL extra high-yield ink cartridges in Black, Cyan, Magenta and Yellow. These cartridges provide strong page yields and professional output, making them ideal for offices and work-from-home setups that print regularly.
We also supply USB printer cables compatible with the MFC-J6945DW. A USB connection offers a stable, direct link to your computer, which is particularly useful during setup or where Wi-Fi is unreliable.
Brother LC3337 / LC3339XL Ink Cartridge FAQ
What ink cartridges does my Brother MFC-J6945DW use?
The Brother MFC-J6945DW uses LC3337 high-yield and LC3339XL extra high-yield ink cartridges in Black, Cyan, Magenta and Yellow. These cartridges are shared with other models in the LC3337 / LC3339XL ink series.
What is the difference between LC3337 and LC3339XL?
Both cartridge ranges fit the MFC-J6945DW:
• LC3337 (high-yield) – high-capacity cartridges suitable for regular
home and office printing.
• LC3339XL (extra high-yield) – even higher capacity cartridges that
provide more pages per replacement, ideal for high-volume users and the lowest
cost per page over time.
Why should I use genuine Brother ink?
Genuine Brother ink is developed for the printhead and firmware in the MFC-J6945DW. It helps maintain consistent colour, correct ink level reporting and stable printhead performance. Original LC3337 and LC3339XL cartridges also ensure that cleaning cycles and maintenance routines work correctly.
What is firmware and why does it matter?
Firmware is the internal software that controls your printer’s
operation — from print quality and ink monitoring to security and maintenance.
Keeping the firmware up to date can:
• Improve reliability and print performance
• Fix known bugs or issues
• Maintain security features
• Help 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 error messages.
Can I use generic LC3337 / LC3339XL cartridges?
Generic cartridges may physically fit but can cause problems such as:
• “Cannot Detect Ink” or similar error messages
• Loss of compatibility after firmware updates
• Inconsistent colour or banding
• Increased risk of printhead clogging
For the most reliable results, we recommend using
genuine Brother cartridges.
Does the Brother MFC-J6945DW support USB printer cables?
Yes. The MFC-J6945DW can be connected using a USB printer cable. This provides a stable, direct connection and is handy during setup or when Wi-Fi isn’t available.
What are the benefits of buying Brother ink online?
Buying online lets you compare LC3337 and LC3339XL cartridges, verify compatibility with the MFC-J6945DW and reorder supplies when it suits you. 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, long-term performance:
• Use genuine Brother LC3337 or LC3339XL ink
• Print at least every 1–2 weeks to keep the printhead clear
• Allow firmware updates to install when prompted
• Keep the printer powered on so maintenance cycles can run
• Store cartridges and paper away from heat, dust and direct sunlight
Benefits of Buying Brother Supplies from Inkjet Online
Genuine Brother Quality
Choose genuine Brother LC3337 and LC3339XL ink cartridges for consistent quality, crisp text and vibrant colour in your Brother MFC-J inkjet printer.
Perfect Compatibility
All Brother inks and USB cables are clearly matched to your printer model so you can select LC3337 / LC3339XL cartridges and accessories with confidence.
Fast Australian Dispatch
Orders ship quickly from warehouses in Adelaide, Melbourne, Sydney, Brisbane and Perth for reliable delivery across Australia.
Expert Support
Not sure which LC3337 or LC3339XL pack is right for your printing volume? Our team can help you choose the best Brother ink and accessories for your MFC-J6945DW.
Brother MFC-J6945DW Overview
The Brother MFC-J6945DW is a feature-rich colour inkjet multifunction printer built for demanding home office and small business environments. It combines printing, copying, scanning and faxing with generous paper handling and automatic duplex printing to support everyday business documents and reports.
Using Brother LC3337 high-yield and LC3339XL extra high-yield cartridges in Black, Cyan, Magenta and Yellow, the MFC-J6945DW offers excellent page yields and reliable print quality. Genuine Brother ink helps maintain crisp text, smooth colour gradients and consistent performance throughout the life of the printer.
Connectivity options typically include Wi-Fi, Ethernet and USB, making it easy to integrate into mixed device environments with desktops, laptops and supported mobile devices. Many MFC-J printers also support mobile and cloud printing, helping teams print from a variety of locations and platforms.
For the most reliable results, use genuine Brother ink cartridges so firmware, ink detection and cleaning cycles continue to operate as designed. Empty cartridges can usually be recycled through cartridge recycling programs in Australia. Discover more Brother inks, tapes 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.