Brother MFC-9840CDW Toner Cartridges
Shop toner cartridges for your Brother MFC-9840CDW, which uses the Brother TN-150 and TN-155 toner cartridge series along with BU-100CL transfer belt units and WT-100CL waste toner bottles. Ink Depot has supplied quality consumables for this heavy-duty workgroup colour laser printer since Oct 2008. Upgrading to high-yield TN-155BK black toner keeps busy office queues moving with minimal interruption. Our 4.8 Google rating reflects a long-standing track record of premium cartridge performance.
Expected Page Yield and Usage Standards
Page yield measurements for Brother TN-155 toner cartridges follow ISO/IEC 19798 standards based on 5% page coverage. High-capacity cartridges like the 5,000-page TN-155BK lower the cost per printed page across high-volume office document cycles.
| Cartridge Number | Type | Colour | Page Yield | Cost Per Page |
|---|---|---|---|---|
| TN-155BK | High Yield | Black | 5,000 | $0.009 |
| TN-155C | High Yield | Cyan | 4,000 | $0.017 |
| TN-155M | High Yield | Magenta | 4,000 | $0.017 |
| TN-155Y | High Yield | Yellow | 4,000 | $0.017 |
Cost Per Page = Total Cartridge Price ÷ Page Yield (at 5% coverage). Prices based on Compatible cartridges.
Choosing Between Genuine and Compatible Options
Using compatible TN-155 toner cartridges provides a budget-friendly solution for everyday business printing without compromising output clarity. Under Australian Consumer Law, using compatible cartridges does not void your printer warranty. Learn more about how third-party options compare in our genuine vs compatible cartridge guide.
Transfer Belts and Waste Toner Assemblies
In addition to toner cartridges, the Brother MFC-9840CDW relies on the BU-100CL transfer belt unit rated for up to 60,000 pages and the WT-100CL waste toner bottle rated for up to 20,000 pages. Experience Tip: The BU-100CL transfer belt unit has a rated lifespan of 60,000 pages, far outlasting routine toner cartridge swaps.
Managing Workplace Toner Inventory
For heavy text printing, stocking high-yield TN-155BK black toner prevents unexpected mid-job pauses. Businesses printing client presentations or marketing collateral benefit from complete TN-155 colour multipacks to balance tone consistency. All compatible cartridges come with a money-back guarantee supported by our returns policy. We dispatch directly from distribution centres in Perth, Brisbane, Sydney, Melbourne, and Adelaide. Free delivery applies on all orders over $99. Explore our complete range of Brother toner cartridges for ongoing support.
Expert Purchasing Tip
Always confirm whether your current printing volume justifies high-yield TN-155 series cartridges over standard TN-150 units, as high-yield toners drastically reduce cost-per-page expenses in shared workgroup setups.
Frequently Asked Questions
Can high-yield TN-155 cartridges fit in the same slot as standard TN-150 cartridges?
Yes, TN-155 high-yield toner cartridges share the exact physical outer dimensions as standard TN-150 cartridges, fitting into the existing drum and carrier slots inside the MFC-9840CDW.
Does the WT-100CL waste toner bottle need to be replaced at the same time as toner cartridges?
No, the WT-100CL collects excess toner over a 20,000-page lifespan, meaning it typically requires replacement only once for every four to five high-yield black toner cycles.
Will replacing individual colour toners affect remaining toner levels in other cartridges?
Replacing one colour cartridge, such as TN-155C cyan, operates independently of the magenta and yellow cartridges, allowing each colour to be swapped only when fully depleted.
