Brother IntelliFAX-2840 Monochrome Laser Fax Machine with 33.6K Super G3

Brother IntelliFAX-2840 Monochrome Laser Fax Machine with 33.6K Super G3, 250-sheet tray, 20-sheet ADF, standalone copier, USB 2.0 host-connected laser printer capability

Condition: Lightly used, tested working. Includes original manual and software CD. Toner/drum consumables are considered wear items and not guaranteed for life remaining.

The Brother IntelliFAX-2840 is a compact, business-class laser fax designed for small offices and reception desks that still need rock-solid faxing plus convenient copying and USB printing. A 33.6 kbps Super G3 modem transmits as fast as ~2.5 seconds per page (ideal conditions), while the 250-sheet letter/legal paper tray and 20-sheet ADF reduce reloading for multi-page jobs. As a bonus, the 2840 doubles as a USB-connected monochrome laser printer, so you can print invoices, confirmations, and cover sheets directly from a PC—handy when you don’t need a separate printer. The straight-through bypass slot helps with envelopes and heavier media, and Brother’s TN-420/TN-450 toner + DR-420 drum system keeps running costs predictable.

Features

• 33.6K Super G3 fax with error correction; fast ~2.5 sec/page transmission (best conditions)
• 20-sheet ADF for unattended multi-page sending and copying (letter/legal)
• 250-sheet adjustable tray minimizes refills; single-sheet manual feed for envelopes/thick media
• USB 2.0 connectivity to use as a monochrome laser printer (PC required)
• Up to ~21 ppm print/copy engine for quick output (letter)
• 16 MB memory (stores hundreds of pages for out-of-paper/ECM receive; capacity varies by content)
• Speed dials & broadcasting (store frequently used fax numbers, send to multiple recipients)
• Copy functions: 2-in-1 ID copy, reduction/enlargement, multi-copy
• Toner/drum system: TN-420 (std) / TN-450 (High-Yield) toner; DR-420 drum
• Compact footprint suitable for counter or credenza placement

Applications / Spheres of Application

• Small offices needing reliable faxing with occasional laser printing
• Healthcare, legal, logistics, and government desks with persistent fax workflows
• Front desks/reception for confirmations, forms, and ID copies
• Home offices needing a space-saving fax + copier + printer device

Cross-Referenced Models (Brother family)

• IntelliFAX-2840 (this unit)
• IntelliFAX-2940 (related model with enhanced feature set)
• MFC-7240 / MFC-7360/7460 series (AIOs using the same TN-420/450 & DR-420 supplies)

Comparable Products (other brands / similar class)

• HP Fax / LaserJet-based fax units (mono)
• Canon imageCLASS fax-capable mono devices
• Panasonic/Konica Minolta small office laser faxes

Specifications (typical for IntelliFAX-2840)

• Fax modem: 33.6 kbps Super G3, ECM; ~2.5 sec/page (requires compatible line/conditions)
• Print engine: Monochrome laser, up to ~21 ppm (letter)
• Paper handling: 250-sheet tray (letter/legal); single-sheet bypass; 20-sheet ADF
• Memory: 16 MB (fax/copy memory; capacity varies)
• Interfaces: USB 2.0 (for PC printing); RJ-11 line/telephone ports
• Supplies: TN-420 (std) / TN-450 (High-Yield) toner; DR-420 drum
• Functions: Standalone fax & copier; USB printer capability
• Approx. size/weight: ~12.2″ H × 14.7″ W × 12.7″ D; ~19 lb (class typical)
• OS support (printing): Windows®/Mac® (driver availability varies by OS version)

Note: While the 2840 supports USB printing, PC scanning is not a core function of this fax model. If software from the included CD enables additional features on your OS, treat them as optional conveniences rather than guaranteed capabilities. For network printing/scanning, consider a Brother MFC series AIO.

Part of a Larger System

• Works with standard analog phone lines or compatible ATA/FOIP adapters (settings may be required)
• Pairs with existing office printers; or serves as the primary mono printer for a single workstation
• Uses common Brother consumables for quick restocking (TN-450/DR-420)

What’s Included

• Brother IntelliFAX-2840 (lightly used, tested working)
• Owner’s manual (printed) and software CD
• Power cord and phone line cable (if photographed/mentioned; otherwise standard cords are easily sourced)
• USB cable for PC printing (include if pictured or specify if needed)

Related

Brother laser fax; IntelliFAX-2840; mono USB laser printer; fax machine with ADF; device to send/receive faxes; small office fax copier; Super G3 fax; TN-450 high-yield toner; DR-420 drum; 250-sheet tray fax; legal-size fax machine

Common Requests:

1. “Can I use the IntelliFAX-2840 as a USB laser printer with Windows 10/11 or macOS?”
2. “Which supplies does it take—TN-450 toner and DR-420 drum?”
3. “What’s the ADF capacity and can it handle legal-size pages?”
4. “How fast does it transmit and print (ppm / sec per page)?”
5. “Does it support PC-Fax sending, and what are the driver options for my OS?”

Manufacturer Trademarks Disclaimer: Brother®, IntelliFAX®, and all related marks are the property of Brother Industries, Ltd. and/or its affiliates. Other trademarks are the property of their respective owners. Names are used for identification and compatibility reference only and do not imply endorsement.

P123