The Brother IntelliFAX-2840 is a dedicated laser fax machine designed for offices that still depend on reliable, high-volume faxing. This guide covers full specs, toner costs, setup requirements, competitor comparisons, and whether the Brother 2840 is still worth buying in 2026.
Frequently Asked Questions
Does the Brother FAX-2840 have Wi-Fi?
No. The Brother FAX-2840 connects via Hi-Speed USB 2.0 only. It has no Wi-Fi or Ethernet port and cannot be shared across a network without a separate print server.
What toner does the Brother FAX-2840 use?
The Brother FAX-2840 uses TN-420 (standard yield, ~1,200 pages) or TN-450 (high-yield, ~2,600 pages) toner cartridges. The drum unit is DR-420, rated for ~12,000 pages. The machine ships with a starter toner of approximately 700 pages — budget for a TN-450 immediately.
Does the Brother FAX-2840 work with VoIP?
Not officially, but it can be configured for VoIP via Menu > Fax > Miscellaneous > Compatibility > Basic (for VoIP). This reduces the modem speed to 9,600 bps for better stability. Results are inconsistent — an analog landline is strongly recommended for reliable fax transmission.
What is the difference between the Brother FAX-2840 and FAX-2940?
The FAX-2940 adds a full PC-Fax Send driver, scan-to-computer capability, a 30-page ADF (vs. 20-page on the 2840), and faster 24 ppm printing. Both are USB-only with no network connectivity.
Is the Brother FAX-2840 still available to buy?
Yes, new units are available through Staples (~$290) and specialty vendors. The model appears to be end-of-life — no longer in active production — but Brother continues to provide driver updates and full support. Refurbished units start around $200 on sites like CopyFaxes and eBay.