Remanufactured for Brother LC79M Magenta Ink Cartridge – Super High-Yield (XXL) | Castle Ink

Brother LC79 Magenta (LC79M) at a glance: a super high-yield magenta ink cartridge rated at about 1,200 pages. Remanufactured: a genuine Brother LC79 cartridge, cleaned, refilled and print-tested. Fits the Brother MFC-J5910DW, J6510DW, J6710DW and J6910DW. Backed by a 1-year 100% satisfaction guarantee; orders by 4 PM ET (Mon–Fri) ship the same day from Long Island, NY.

Key Facts

What's in the Box

• 1 × Brother LC79 Magenta (LC79M) remanufactured ink cartridge — about 1,200 pages

Page yields are the manufacturer's rating for the matching original cartridge, measured at roughly 5% page coverage. Your results will vary with what you print.

Compatible Printers (4 models)

• Brother MFC-J5910DW
• Brother MFC-J6510DW / MFC-J6710DW / MFC-J6910DW

Don't mix these up: LC79 is the super-high-yield cartridge for these four printers. They also take LC75 and LC71, which are smaller.

Not sure? Look up your exact model on our Find Ink by Printer page, or contact us and we'll confirm the right cartridge for you.

Part Numbers & Also Known As

This cartridge replaces or is also searched for as: LC79M, Brother LC79M, Brother LC79 magenta, BrotherLC79 magenta, LC79 magenta ink, LC79, LC-79, LC79 magenta, MFC-J6510DW ink, MFC-J6710DW ink

Chips, Printer Messages & Installation

Installing: with the printer on, open the ink cartridge cover on the front of the printer. Press the release lever (or push the cartridge) to unlock the empty cartridge and pull it out. Remove the orange protective cap from the new cartridge without touching the chip, insert it in the direction of the arrow on the label and push until it locks. Close the cover; the printer resets the ink level for that color.

"No Ink Cartridge" or "Cannot Detect": take the cartridge out, check the orange cap and any tape are fully removed, and push it back in firmly until it clicks. Restart the printer if the message stays.

Streaks or faint colors: run Cleaning from the Ink or Maintenance menu, then print a nozzle check. Brother printheads are built into the printer, so let it rest between cleanings rather than running several back to back.

Still stuck? See our guide to fixing a cartridge that isn't recognized or contact us and we'll make it right.

Remanufactured vs. Compatible vs. Original

Original (OEM) cartridges are new from the printer brand and cost the most. Remanufactured cartridges, like this one, start as genuine original shells (including the original chip) that are cleaned, refilled with high-quality ink and print-tested, so they fit and communicate like the original at a fraction of the price. Compatible cartridges are built new by a third party with their own chip. Castle Ink sells remanufactured inkjet cartridges and compatible (newly manufactured) toner.

Other Options for the Same Printers

• Brother LC75 Black Ink Cartridge (LC75BK)
• Brother LC75 Black and 3 Color Combo 4-Pack
• Brother LC75 Cyan Ink Cartridge
• Brother LC75 Ink Cartridges
• Brother LC75 Magenta Ink Cartridge
• Brother LC75 Yellow Ink Cartridge

Frequently Asked Questions

How many pages does the Brother LC79 magenta print?

About 1,200 pages, based on Brother's rating for the original LC79M at roughly 5% coverage.

Will this void my printer warranty?

No. Under the U.S. Magnuson-Moss Warranty Act, a manufacturer can't void your printer warranty just because you used a third-party or remanufactured supply. If a non-original supply directly caused damage, that specific repair might not be covered.

How long can I store it?

Store it sealed, at room temperature and out of direct sunlight, and use it within about 24 months for best results. Once opened, install it promptly.

When will my order ship?

Orders placed by 4 PM ET, Monday through Friday, ship the same business day from Long Island, NY, by USPS (2–5 business days). Expedited 1–2 day delivery is available at checkout, and shipping is free on orders over $50.