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Brother MFC 7840CW Supplies

That Is My Printer

Toner Cartridges, Maintenance Kits and Parts

Brother MFC 7840CW
Brother

3 Items

Frequently Asked Questions

The MFC 7840CW uses BRT TN330 (BRT TN-330), XER 106R2323, CTC TN330 toner cartridges. BRT TN330 yields 1500 pages; XER 106R2323 yields 2600 pages; CTC TN330 yields 1500 pages.

BRT TN330 (BRT TN-330) prints 1500 pages, XER 106R2323 prints 2600 pages. Choose XER 106R2323 for high-volume printing (lower cost per page); BRT TN330 (BRT TN-330) costs less upfront for occasional use.

The XER 106R2323 cartridge has an approximate yield of 2600 pages.

For BRT TN330 you can choose Genuine Brother (BRT TN330 (BRT TN-330)) or a Remanufactured option (CTC TN330) at a lower price per page, same 1500 page yield.

If your MFC 7840CW displays a "Supply Problem" alert, it's almost always the cartridge chip not being read correctly — not a faulty cartridge. Switch the printer off for about 30 seconds, take the cartridge out and slot it back in firmly, then wipe the small metal chip contacts with a dry, lint-free cloth. Still showing the alert? Install a fresh XER 106R2323 or reach out to our support team.