Cartridge prices starting at $22.99

Monochrome printing is fast and easy with the space-saving Brother MFC-7240 Compact Laser All-in-One. Keep your process simple with Carrot Ink toner cartridges. Our Brother TN420/TN450 Black High Yield Compatible Toner Cartridge is budget-friendly while delivering superior quality results every time you print. Our airtight packaging also ensures the ink in the cartridge doesn’t dry up. Don’t want to worry about your toner running out for a long time? The Brother DR420 Black Compatible Drum Unit is for you. Order today and get free shipping when your order is or more!

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How to Replace Cartridge(s)

  1. Turn on your printer and open the front cover.
  2. Wait 10 minutes for the printer to cool down.
  3. Hold your printer with one hand and pull out the drum unit with your other hand.
  4. Push the green lock lever on the left side of the drum unit to release the toner cartridge. Then, take out the used toner cartridge from the drum unit.
  5. Remove the packaging from your replacement toner cartridge.
  6. Gently shake the cartridge side-to-side to evenly spread the toner. Take off the protective cover.
  7. Place the new cartridge into the drum unit until you hear it lock into place.
  8. Slide the green tab at the top of the drum unit left to right and right to left several times to clean the primary corona wire.
  9. Put the drum unit back into the printer.
  10. Close the front cover.


Frequently Asked Questions


What is the difference between a toner cartridge and a drum unit?

A toner cartridge and a drum unit are both vital to a toner printer. The toner cartridge contains the ink, while the drum unit transfers the ink from the cartridge onto the paper.


How many pages can I print with the toner cartridge and the drum unit?

Our Brother TN420/TN450 Black High Yield Compatible Toner Cartridge can yield up to 2,600 pages, while our Brother DR420 Black Compatible Drum Unit can yield up to 12,000 pages. These numbers depend on your printer settings, the types of paper you’re using, and how often you use your printer.


How do I reach you for customer support service?

Talk to us today by calling us or speaking with us through our live chat system. We’ll make sure all your questions are answered before we end our conversation.