At Carrot Ink, low cost does not mean low quality. Our compatible laser toner cartridges for your Brother DCP-9040CN are manufactured in an ISO-9001 facility, guaranteeing you that they meet and exceed OEM standards. The only difference is, we offer them at a fraction of the original cost. Whether you need single ink cartridges in the CMYK range or a single drum unit, you can rest assured that you'll get consistent and reliable professional-grade outputs. If you tend to print a lot, our Brother TN115 High-Yield Remanufactured 4-Pack Combo will suit your heavy-duty printing needs, so you'll have cartridges at the ready as soon as you run low. Order more than $40 of products today and your shipping fee is on us!

Shop Cartridges for DCP-9040CN

Request a quote for


Need a Proposal or Have a Question? Please fill out the form below
and one of our aerial experts will be in touch immediately.

We can't find products matching the selection.

How to Replace Cartridge(s)

  1. Open your printer's front cover by pressing the release button.
  2. Hold the green handle of the drum unit. Then, lift it up and pull it out until it stops.
  3. Hold the handle of the old toner cartridge, then pull it out. Do this for all cartridges that need replacing.
  4. Push the release latches on the white corona wire, and then open the cover. Next, gently slide the green tab left to right several times. Close the corona wire. Do this step for all corona wires.
  5. Take your new cartridge out of its bag. Hold it on its sides, then shake it five or six times to distribute the ink inside.
  6. Remove the orange protective cover on the new cartridge.
  7. Hold the new cartridge by its handle, then gently slide it into its corresponding slot in the drum unit. Do steps 5 to 7 for all cartridges that need replacing.
  8. Push the drum unit in until it stops.
  9. Close your printer's front cover.


Frequently Asked Questions


How soon can I receive my order?


If you place your order before 3PM Pacific Time (except weekends and holidays), we'll make sure to ship your product on the same day! Depending on the delivery method that you choose and the product's availability, you can expect your product anywhere between one and eight business days.


Do I need to replace both the drum unit and the toner?


Your printer will be able to notify you which unit you need to replace. If your cartridges are running low but your drum unit isn't, then you only need to replace whichever cartridge is spent. But if the quality of outputs continue to decline despite replacing toner cartridges, then you would need to also replace your drum unit.


Does the drum unit come with a toner?


Our toners and drum units are sold separately.