FAX-2840 Toner | Compatible Brother TN420 / TN450 & DR420

FAX 2840

Built for offices that still rely on the fax line every day, the Brother FAX-2840 is an IntelliFAX entry model that also prints and copies at 21 ppm. Its Super G3 33.6k fax is backed by 400 pages of fax memory, a 20-sheet ADF, and a 250-sheet paper tray, while two-sided pages are handled through manual duplex in the driver. It runs Brother TN420 or high-yield TN450 toner (about 1,200 or 2,600 pages) alongside the DR420 drum.

Cartridge	Type	Color	Approx. Yield
Brother TN420 (compatible)	Standard-yield toner	Black	1,200 pages
Brother TN450 (compatible)	High-yield toner	Black	2,600 pages
Brother DR420 (compatible)	Drum unit	Black	12,000 pages

Frequently Asked Questions

Which toner does the Brother FAX-2840 use?

The FAX-2840 uses the Brother TN420 standard-yield toner (~1,200 pages) or the Brother TN450 high-yield toner (~2,600 pages), plus the Brother DR420 drum unit (~12,000 pages).

What is the difference between the TN420 and the TN450?

Both fit the same machines. The TN450 is the high-yield version — it prints about 2,600 pages versus about 1,200 for the TN420 — so it costs less per page if you fax and print a lot.

Are the cartridges on this page original or compatible?

The cartridges on this page are compatible replacements for the Brother TN420, TN450 and DR420, built to match the originals' fit and page yield.

How often does the DR420 drum need replacing?

The DR420 drum unit is rated for approximately 12,000 pages — roughly four to ten toner changes, depending on whether you use TN420 or TN450 cartridges.