Cartridge prices starting at $29.99

The Brother MFC-8640D helps you get all those basic tasks done without so much effort. From printing and copying to scanning and faxing, this machine does it all in as little time as possible. It offers fast printing speeds of up to 21 ppm and copying speeds of up to 21 cpm, and it comes with an up to 50-page auto document feeder for even more convenience. If that's not enough, it also features automatic duplexing for a hassle-free 2-sided printing, fax receiving, and copy output. But to ensure you enjoy these features for a long time, make sure to replace the toner cartridge as soon as soon as it runs out of toner. Inkjets offers you the best deals on compatible Brother ink cartridges, which include the Brother TN570 Compatible Black High-Yield Toner Cartridge. Purchase one here now!

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How to Replace Cartridge(s)

Here's how to replace the toner cartridge on the Brother MFC-8640D:


  1. Open the top cover.
  2. Hold the drum unit on each side, and then gently pull the drum unit assembly toward you.
  3. Turn the cartridge lever forward until it stops. Then, slide the toner cartridge out of the drum unit.
  4. Unpack the new toner cartridge and gently rock it from side to side five or six times to distribute the toner inside evenly.
  5. Insert the new toner cartridge into the drum unit. Gently turn the cartridge lever backward until it stops.
  6. Put the drum unit assembly back into the printer.
  7. Close the top cover.


Frequently Asked Questions


I'm replacing the drum unit on my Brother MFC-8640D soon, so I'm thinking of getting your 2-Piece Combo Pack and keep the toner cartridge as spare. How long can I keep the toner cartridge in storage?

Our compatible toner cartridge and drum unit can last for 24 to 36 months in storage. A few reminders though: make sure to keep them in their original packaging; store them in a cool, dry place; and keep them away from direct sunlight.


I want to order in bulk. Will I get any discount?

We do offer a huge discount for items above $500. Give us a call at 1-972-200-3813 and we'll be glad to assist you.


I don't have a credit card. What other payment methods do you offer?

We also accept PayPal payments for online orders and checks and money orders for mail-in orders.