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 39 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


so far so good

I haven't had the machine for very long but so far it is doing a great job


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 39 customers


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


Long lasting product


from North Carolina

Had prior model that lasted eighteen years with regular use every day. It finally had to be replaced. Hope this one lasts half as long.


so far so good


from Undisclosed

its faster than the 2820 so far we like it and would tell a friend


Performs Great


from Northwest of Pittsburgh, PA

My laptop modem / software stopped working correctly. I had a few hundred pages to fax. I went to the store and purchased the Brother IntelliFax-2840. I searched online first before going to the store, to check out the features and reviews. I have since faxed all of the documents and then some. People are complaining that the USB cable is not included. How many printers / fax machines have ever included the cable? Try almost none. People read the specifications, the descriptions, what is included and the reviews. The memory is huge, holding up to 400 pages in memory. The fax can load an almost unlimited amount of pages, if you add a few on top as it is scanning the document(s) into the machine for faxing or copying. The specifications list 20 if stacked evenly or 30 if angled. This fax is mainly for personal or small business use. This fax is perfect for my uses.




from Long Island NY

Before purchasing this product I reviewed it so many times on U tube ,but when I bought it I was thinking it might be too big for my office I was so wrong it really surprise me it is such beautiful piece of equipment that I would recommend to any one,also the2840 is so dependable I could have my faxes out to my clients in no time.the price I paid was very reasonable I didn't hesitate to buy it good work by the people who design this product.thank you so much for making my life easer.god bless.

(1 of 1 customers found this review helpful)


Very Satisfied


from Glens Falls, NY

I have used this product with good results. I do wish the unit had an instant sent confirmation, when as fax is sent, instead of having to wait until the next date for an update. I had an HP fax machine that offered a sent confirmation when the fax was sent and then an event log print out monthly. I liked that feature.


I'm a happy camper.


from Plano, Texas

Bought this machine because my HP fax broke down after 2 years! I am tired of having to look for a new machine every 1 to 2 years. So I did my research and found this Nice brother laser fax. I wanted a no-frills laser fax machine so that I didn't have to deal with the hassle of ink cartridges anymore, and this fit the bill perfectly. This is a Great machine. The copies come out like they were originals and the machine is so quiet, we are never disturbed by the sound when we have a bulk of faxes to send or receive. Really an amazing machine and very reasonably priced. It was an easy set up, and the quality seems very good. If it can continue to perform at this level, I'm a happy camper.

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