Brother IntelliFax-2840 High-Speed Laser Fax Machine, 2.5 sec/page Fax Speed, 20 Pages ADF Capacity, 21cpm Copy Speed, 250-Sheet Input Capacity

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About Brother IntelliFax-2840

The Brother IntelliFax-2840 High-Speed Laser Fax Machine offers fast fax transmission and high-quality laser output, the IntelliFAX-2840 laser fax is a solid choice for your home office or small business. It's compact in size, energy-efficient and offers convenient, high-quality copying. You can use it for both fax and voice calls on the same telephone line and you can even connect an external answering machine. Also, help keep your operating costs low by using the optional high capacity replacement toner.

Brother IntelliFax-2840 Features

  • 33.6K bps Super G3 fax modem: Fast fax communication (approx. 2.5 sec./page) and memory up to 400 pages
  • Superior laser output: Whether you're printing incoming faxes or making copies at up to 21cpm, you can expect high-quality laser output
  • Time-saving features: Automatically send the same fax message to more than one fax number (up to 272 broadcasting locations) or scan a fax into memory while another fax is being sent or received (dual access)
  • 250-sheet paper capacity: A high-capacity, front-loading paper tray is easily accessible and helps reduce the time spent reloading paper. It also adjusts to hold either letter or legal size paper
  • 20-page capacity auto document feeder: For faxing and copying multiple pages, up to legal size
  • High capacity replacement toner cartridge available: Help lower your cost per page by using the optional high capacity replacement toner cartridge
  • Future printing capability: Built-in Hi-Speed USB 2.0 interface to connect to your computer for up to 21ppm laser printing

Brother IntelliFax-2840 Specifications

Fax: Print Technology
B/W Laser Technology
Fax: Faxing Capability
B/W Faxing
Fax: Fax Modem Speed
33.6K bps Fax Modem
Fax: Best Transmission Speed
Approx. 2.5 seconds per page
Fax: Max. Document Feeder Capacity
20-Page ADF
Fax: Standard Input Paper Capacity
250-Sheet Input Capacity
Fax: Standard Memory
16MB Memory
Fax: Fax Page Memory
Up to 400-page fax memory
Fax: Dual Access
Fax: Polling
Fax: Broadcasting (# of locations)
Yes (272 locations)
Fax: Group Dial (up to x groups)
Yes (8)
Fax: Quick Scan (Memory Transmission)
Approx. 2.5 sec/page
Fax: Delayed Transmission/Timers
Yes/50 Timers
Fax: Document Memory Backup
Fax: Gray Scale
Mono: 256
Fax: Remote Fax Retrieval
Fax: Fax Forwarding/Paging
Fax: Auto Fax Reduction
Fax: Transmission Verification Report
Yes (with image)
Fax: Out-of-Paper Reception
Fax: Coding Method
Fax: ITU-T Group
Super G3
Fax: Optional Paper Capacity (sheets)
Fax: Max. Fax Resolution
203x392 lines/inch
Fax: Activity Report/Journal Report
Yes (up to 200)
Telephone: Telephone Handset
Telephone: Fax/Telephone Switch
Telephone: One-Touch Dial
22 locations
Telephone: Speed Dial
200 locations
Telephone: Total Auto Dial Locations
222 locations
Telephone: External TAD interface
Telephone: Automatic Redial
Yes (1 times/5 min.)
Telephone: Distinctive Ring Detect Ready
Telephone: Caller ID Ready
Telephone: Telephone Index Search
Copy: Copying Capability
B/W Copying
Copy: Multi-Copying
Yes (up to 99)
Copy: Copy Output Resolution
Up to 300x600 dpi
Copy: Max. Copy Speed B/W
Up to 21cpm Black
Copy: Copy Reduction/Enlargement
25% - 400%
Copy: Sorting Function
Copy: N in 1 Function
2in1 / 4in1
Replacement Consumables / Yield
TN420 Standard Yield Toner Cartridge (1,200 pages)
TN450 High-Yield Toner Cartridge (2,600 pages)
DR420 Drum Unit (12,000 pages)
Printing Capability
B/W Printing
Standard Interface(s)
Max. Black Print Speed (ppm)
Up to 21ppm Black
Max. Print Resolution (dpi)
Up to 2400x600 dpi
LCD Size (characters/lines)
16 characters/2 lines
Output Paper Capacity (sheets)
100 sheets
In-Box Consumables (Yield)
(1) Starter Toner Cartridge (700 pages)
(1) DR420 Drum Unit (12000 pages)
Min. Input for ADF (Width/Height)
Max. Input for ADF (Width/Height)
Sheet Weight - ADF (Min./Max.)
17-24 lbs
Min. Paper Width/Length (Paper Tray)
Max. Paper Width/Length (Paper Tray)
Sheet Weight - Paper Tray (Min./Max.)
16-28 lbs
Power Source
AC 110-120 V 50/60Hz
Power Consumption - Sleep/Standby/Peak
Machine Noise (Standby/Copying)
30 dBA / 53 dBA
Maximum Monthly Duty Cycle
10,000 printed pages
Recommended Monthly Print Volume
250 to 2,000 pages
Operating Environment: Temperature
50-90.5 degrees F
Operating Environment: Humidity
20-80% (w/o condensation)
Dimensions (WxDxH)
14.7x14.6x12.2" / 37.33x37.08x30.98 cm
19.8 lbs / 8.98 kg

Brother IntelliFax-2840 Reviews

Review Snapshot®


(based on 45 reviews)


of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Most Liked Positive Review


Nice looking machine

Much faster and neater than my old machine. Like the fact that it is laser and not filament.


Most Liked Negative Review


Fast but no memory

The 2840 was easy to set up, receives & sends faxes quickly however this is not like the old Brother fax machines that would retain memory and print incomplete faxes if the source was disconnected and reconnected. This machine is better purposed for outgoing faxes and I would not recommend using as sole source for incoming faxes.

Reviewed by 45 customers

(2 of 4 customers found this review helpful)


Nice looking machine


from Virginia

Much faster and neater than my old machine. Like the fact that it is laser and not filament.


A Real Fax machine !!!!


from Suburban Philadelphia, Pa.

Had an old thermal piece of junk that always jammed was slow and used that primitive thermal roll. What a difference. The 2840 is fast sending receiving and printing out reports. See, no jams using recommended page. Did get off track setting up. I needed to use an external voice mail machine but used the wrong option. I needed brother to say "do you use voice FROM THE PHONE COMPANY not just voice mail. Once i got that straight it was a cinch. Brother is very thorough in their instructions and there is a lot of them and they should be read. Especially the setup instructions and checking each menu setting. Nice job Fax Machine support team.


Loving It So Far!!


from Rochester, NY

We purchased the Brother IntelliFax-2840 a few months ago. Although we aren't HEAVY users of the fax machine, we DO rely on it for many specific needs. We replaced our PanaFax UF-585 with this model after doing some extensive research on the internet of various fax machine models, which there are NOT a lot of out there these days. The clarity of the print-outs and the speed of sending and receiving is WONDERFUL! I wish the display window was a bit larger or maybe tilted up more for easier viewing, but it works. Supplies (toner) are very reasonable, as well. Only time will tell if we will CONTINUE to love it, but we sure do right now! :)





We upgraded and since our old faxes were also Brother brand we decided to purchase same brand. We were satisfied with product and were able to use for many years.


Very Reliable Product


from Chicago .IL.

Our new Brother Fax-2840 is replacing a very reliable Brother Fax that we had for years. This porduct is very reliable and we like all the Brother features ttoo numerous to mention. It is a ver y good product. Keep up the Good Work Brother.


excellent machine


from Delray Beach, Florida

This my second machine as the first is in my HOA office and I was so pleased with the way it works I got one for my home.


Overall nice fax / printer.


from OK

Fairly easy setup. Nice size footprint. Initial toner life is somewhat abbreviated but regular, full size replacement toner seems to be available at numerous retail outlets and often at discount prices. Bit pricy to get decent length (6ft) USB cord (not included) to link Fax to Desktop. However, once installed, Fax works great as printer with good quality output. Only difficult time was downloading updated printer driver from Brother site.


Good Buy


from Honolulu, HI

I like this fax, but miss 2 features that were on a previous Brother Intellifax 1270e that I had for many years: 1) I could continue to load pages into the feeder, so I could fax more than 30 pages allowed on the 2840. 2) On the 1270e I could print a confirmation of the fax after I sent it. On the 2840, it has to be programmed prior to sending and deprogrammed if no longer needed.


Great fax machine! Our ...


from Omaha, NE

Great fax machine! Our office sends & receives ALOT of faxes each day and it doesn't a great job of keeping up. Our office has 2 of these machines due to being spread out and on multiple floors. The only negative thing about this machine is that it goes through ALOT of toner even with the save toner option is selected. I have not heard a complaint about so far. Would buy another one though!


excellent FAX


from Undisclosed

this FAX machine is perfect for small bus or home/office. it is affordable and dependable! love it, G

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