This fax machine is excellent. However, the "deep sleep" mode problem is real. Pasting together several comments that appeared online, I learned the following. 1) The machine will spontaneously go into regular sleep mode when not in use. This saves energy. In regular sleep mode the machine will wake up and received faxes normally. So, that is good. 2) After a certain time (that you can set from the Ecology menu), left to its own devices, the machine will fall into "deep sleep" mode. This mode saves more power than regular sleep mode. However, the machine in deep sleep mode will only wake up and become able to receive faxes if: a) one physically touches a key, b) one lifts the handset, or c) if it received data from a computer or network. This will only happen if the fax machine is used as a printer, attached to a computer or a network. So, if one wants to use it as a stand-alone fax machine or one wants to receive faxes at all times, the deep sleep mode needs to be turned off. This is not an intuitive project.
To turn off the Deep Sleep mode you need to do the following: Press Menu. With the up and down arrows select 1. General Setup, press OK. Select 4. Ecology, press OK. Select 2. Sleep Time, press OK. Then, with the two-digit sleep time still on the screen, PRESS TOGETHER the LOW ARROW + START keys. The Deep Sleep menu will appear. You can then choose yes or no with the up and down arrows. Enter OK, then press Stop/Exit to exit the Manu mode.
As much as the deep sleep mode is ecologically friendly, it remains incomprehensible why Brother made the access to controlling the Deep Sleep mode so hidden and arcane.
The machine makes excellent copies and is a great printer. As to durability and cost of maintenance, remains to be seen.
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This Item  Brother FAX-2840 High Speed Mono Laser Fax Machine, Dark/Light Gray - FAX2840, 17.750x18.125x16.625 | Recommendations  |  |  |  |  | |
| Price | $234.99 | $249.99 | $649.99 | $234.99 | $349.99 | $430.00 |
| Delivery | Get it as soon as Thursday, Jun 12 | Get it as soon as Tuesday, Jun 10 | Get it as soon as Tuesday, Jun 10 | — | — | Get it Jun 11 - 13 |
| Customer Ratings | ||||||
| Sold By | Amazon.com | Amazon.com | Essential-Buys | Shoplet | Shoplet | Acute Tek (We Record SN) |
| printer output | Monochrome | Monochrome | Monochrome | Monochrome | Monochrome | Monochrome |
| printer technology | Laser | Laser | Laser | Laser | Laser | Laser |
| paper size | Letter or Legal | Up to 8.5 x 14 | 8.5 inches | A4 [NA] | 8.27 x 11.69, 8.50 x 10.98, 6.93 x 9.84, 5.83 x 8.27, 6.93 x 9.84, 4.13 x 5.83, 7.24 x 10.51, 8.50 x 14.02 | — |
| print media type | paper plain | paper plain, envelopes, labels | paper plain | unknown | paper plain | paper plain |
| max input sheets | 250 | 250 | 250 | 250 | 250 | 250 |
| connectivity tech | USB | USB, Wi-Fi, Ethernet | Wi-Fi, Ethernet, USB | USB | USB | USB |
| compatible devices | PC, Laptops | Laptops, PC, Smartphones, Tablets, iPhone | PC, Laptops, Smartphones | PC | — | PC, Laptops |
| operating system | Windows, Mac | Windows, Mac, Linux, Andriod, iOS | Windows, Mac | — | — | — |
| duplex | auto | Automatic | Automatic | Automatic | auto | Manual |
| memory capacity | 16 MB | — | 64 MB | 16 MB | 16 MB | 64 MB |
| scanner type | Document | Flatbed, Sheetfed | Sheetfed | Sheetfed | Sheetfed | Sheetfed |
Product information
| Controller Type | Push Button |
|---|---|
| Printer Media Size Maximum | 8.5 x 14 inches |
| Included Components | IntelliFax-2840 High-Speed Laser Fax; Starter Toner Cartridge; DR420 Drum Unit; Telephone Line Cord; Telephone Handset; Handset Curled Cord; User fts Guide; Quick Setup Guide; Documentation CD-Rom; AC Power Cord |
| Print media | Paper (plain) |
| Scanner Type | Document |
| Max Input Sheet Capacity | 250 |
| Max Copy Speed (Black & White) | 21 ppm |
| Display Type | LCD |
| Compatible Devices | PC, Laptops |
| Sheet Size | Letter or Legal |
| Color Depth | 1 bpp |
| Dual-sided printing | No |
| Wattage | 1080 watts |
| Initial page print time | 2.5 seconds |
| Max copy resolution black-white | 2400 x 600 dpi |
| Duplex | auto |
| Hardware Interface | USB |
| Ink Color | Dark/light gray |
| Resolution | 2400 x 600 |
| Additional Printer functions | Fax |
| Control Method | Touch |
| Compatible Cartridge | Brother laser toner cartridges |
| Number of Trays | 1 |
| Processor Count | 1 |
| Series Number | 28 |
| Number of USB 2 Ports | 1 |
| Total USB Ports | 1 |
| Model Series | 20 |
| Specific Uses For Product | home office |
| UPC | 012502632740 |
| Memory Storage Capacity | 16 MB |
| Product Dimensions | 14.6 x 14.7 x 12.2 inches |
| Item Weight | 19.8 pounds |
| ASIN | B008OG5W3M |
| Item model number | FAX2840 |
| Batteries | 1 Lithium Ion batteries required. |
| Customer Reviews |
4.3 out of 5 stars |
| Best Sellers Rank | #17,242 in Office Products (See Top 100 in Office Products) #34 in Laser Computer Printers |
| Is Discontinued By Manufacturer | No |
| Date First Available | November 22, 2010 |
| Manufacturer | Brother Printer |
| Language | English |
| Country of Origin | China |
Warranty & Support
For warranty information about this product, please click here [PDF ]
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From the manufacturer
Brother FAX-2840 High Speed Mono Laser Fax Machine
High-Speed Faxing for Your Home Office or Small Business offering fast fax transmission and high-quality laser output, the Brother 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.
Main Features
Future printing capability Built-in Hi-Speed USB 2.0 interface to connect to your computer for up to 21ppm laser printing.
Superior laser output Whether you're printing incoming faxes or making copies at up to 21cpm, you can expect high-quality laser output.
33.6K bps Super G3 fax modem. Fast fax communication (approx. 2.5 sec./page‡) and memory up to 400 pages.
20-page capacity auto document feeder. For faxing and copying multiple pages, up to legal size.
Fantastic quality within both speed also laser print!
Simply perfect for my small business need. Takes a little patience on setting up all options, yet worth the money for solid built "Brother" 2840 fax/copier machine.
Top reviews from the United States
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Top reviews from other countries
- JayDeeReviewed in Canada on March 14, 2024
Fast faxing & copying.
Style: New Model: FAX2840Verified Purchase - shanReviewed in India on October 1, 2020
not upto the mark
Style: New Model: FAX2840Verified Purchase - TddyBrReviewed in Canada on January 17, 2024
Perfect for what it is made for
Style: New Model: FAX2840Verified Purchase
