Brother MFC-7840W Laser Multifunction Center with Wireless Networking - MFC-7840W

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5 out of 5
Total Reviews
Overall Satisfaction
Ease of Use

I have used it for couple of days. It works excellent with no complaints except the LCD screen could be bigger and modern. Othewise, functionality wise its excellent. The wireless setup took less than 5 minutes and requires no cables for setting up. Extremely fast with low noise. Print quality is excellent. Comes with test toner which is good for 1500 pages. Copier and Scanner also work amazingly good. Overall, for this price its an excellent choice.

-Anonymous quote

Wow! This shipped very quickly & set up was a breeze! This was the first product that wasn't a bear to set up -- even on my wireless network! Up and running within a half hour from opening box to scanning items into my computer WIRELESSLY. <p> The most difficult part was rearranging my office to accommodate the MFC. Its footprint is about the same size as the HP that it was replacing, but the adf on this one is larger height-wise and needs more wall clearance when it opens for using the flatbed feature. <p> I love that it scans into memory. You can also set the machine to print confirmations with image, so it's easier to see what you sent in case you don't attach a comfirmation right away to your faxed items. (I use this in my home business, so everything gets saved.) <p> Brother makes a very good product. I've had an HL5040 for over 4 years which I use regularly & heavily in business. It's never let me down (more than I can say for my HP multifunction which would mysteriously have communication errors when I really needed it). I expect that this Brother MFC will be a workhorse like my laser printer has been. <p> Did I mention that set up was SO easy? Connect to your wireless network from the machine itself, set the type of encryption you use & you're up and running. Since I connected wirelessly with ease, wired connectibilty wasn't tested. Based on this experience though, I don't imagine it would be too difficult. <p> So far, the only negative thing I've found is the display screen. I have the MFC next to my desk and from the angle of my seat, I cannot read the screen. So I have to stand up -- I could use the exercise anyway! I do wish the screen position was adjustable. The brightness can be adjusted however, so I may experiment with that to see if viewing from my seat improves. <p> I knew going with a Brother that there are separate drum and toner pieces. The drum life is long (I average one drum per year & can usually find a deal for drum replacement online) and the optional high-yield toner also lasts quite a while (also can be found online for reasonable prices). I usually stock up on toner & have at least 1-2 in the supply closet so I'm not caught running out. I also buy an extra drum to be prepared. I was considering the Brother 8460, but was really waiting for a better deal on it before making the purchase. I'd heard mixed reviews about other mid-range models, but this model had what I was looking for, and in my price range. I wanted networking, laser was a must, 33.6 fax speed, flatbed and adf options, increased print speed over my HL5040 (which prints 17ppm), memory upgrade option (I compromised on that one -- this unit has 32MB standard, no optional upgrade availability), dual paper tray (compromised again on that feature) and PCL-6/BR-3 compatibility (this has both). The features I compromised on were ones that I could do without. The unit is no noisier than my printer or previous units I've had in the past both at home and in an office setting. <p> I would definitely recommend this product based on my limited usage so far. The ease of setup alone makes it easy to recommend.

-MH quote

Great all-in-one printer at a great price!!!

by Marc on 3/9/2009

My home network is completely wireless and I was looking to replace an old fax machine and a cheap laser printer that was connected to my desktop and shared with the rest of the network. This printer was the perfect fit. Now any computer in the house can print w/o having to power on the desktop and I have more space in the office (plus a copier/scanner to boot). Setup was a breeze, just follow the easy directions. Highly recommended, especially if you can get it for less than $200.

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WiFi Scanning and Printing ROCKS!

on 3/11/2009

How cool is it to scan and print without cables? VERY! WiFi setup was pretty easy and print quality is great.

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Product Overview

Laser All-in-One for your Desktop or Small Office

The MFC-7840W offers everything you need in a monochrome laser all-in-one for your home office or small sized business. Delivering the same print speed, copy speed and output quality as the MFC-7440N, the MFC-7840W features an elegant black color scheme while adding a built-in 802.11b/g wireless network interface, PCL®6 and BR-Script3‡ print emulations, a faster fax modem (33.6K bps Super G3), 4-day memory backup and a LCD backlit display for easy viewing.


Manufacturer Brother
Mfg Part# MFC-7840W
SKU 207918565
UPC 012502620648
UPC 14 00012502620648
Fast printing and copying. Print and copy speeds of up to 23 pages per minute.
High-quality laser output. Produce crisp, rich black output up to 2400 x 600 dpi print resolution at a low cost per page that laser technology provides you.
35-page auto document feeder. A quick and easy way to copy, fax or scan multi-page documents.
Flexible paper handling. Features a 250-sheet capacity paper tray adjustable for letter or legal size paper. Plus, a single-sheet manual bypass for envelopes, labels or other types of media.
Flatbed color scanning. Use the document glass to scan pages directly to your e-mail application or to a single PDF file using the ADF.
32 MB standard memory. Stores up to 600 pages in memory for faxing and can handle multiple print jobs and copying.
Wireless, Ethernet, and USB interfaces. You can print, scan or send faxes wirelessly as well as the option to install the MFC on a wired network or to connect locally to a single computer via USB.
Fold-out rear output tray. Opening the printers rear exit allows for a straight-through paper path and is ideal when using the single-sheet bypass slot for printing envelopes or thicker media.
Tech Specs
Print Technology B/W Laser Technology
Consumable Type Toner Cartridge & Drum Unit
Max. Black Print Speed (ppm) 23ppm Black
Print Resolution (maximum dpi) Up to 2400 x 600 dpi
Standard Input Paper Capacity (sheets) 250-Sheet Input Capacity
Optional Paper Capacity (sheets) No
Standard Interface(s) USB, Ethernet & 802.11b/g Wireless Interfaces
Optional Interface(s) No
Standard Memory (MB) 32MB Memory
Optional Memory (MB) No
Printer Driver Compatibility† Windows® & Mac OS®
Emulation(s) PCL®6 & BR-Script 3
Secure Print Function Yes
Maximum Monthly Duty Cycle 10,000 printed pages
Recommended Monthly Print Volume 250 to 2,000 pages
Faxing Capability B/W Faxing
Fax Modem Speed 33.6K bps Fax Modem
Best Transmission Speed (sec) Approx. 2 seconds per page
Out-of-Paper Reception Yes
External TAD interface Yes
Caller ID Ready Yes
Call Waiting Caller ID Ready Yes
Distinctive Ring Detection Ready Yes
Total Auto Dial Locations 208 locations
Broadcasting (# of locations) Yes (258 locations)
Quick Scan (Memory Transmission) Approx. 2.5 sec/page
Auto Fax Reduction (for fax receiving) Yes
Fax Forwarding Yes
Automatic Redial Yes
Dual Access Yes
Fax/Telephone Switch Yes
Fax Gray Scale Mono: 8 bit / 256
Fax Coding Method Mono: MH / MR / MMR / JBIG
PC Fax Capability (send/receive) Yes
Fax Page Memory Up to 600 page fax memory
Fax Page Memory (Brother Test Chart #1) Up to 600 page fax memory
Copying Capability B/W Copying
Design Style Flatbed
Max. Automatic Document Feeder Capacity‡ 35-Page ADF
Max. Black Copy Speed (cpm) 23cpm Black
Stand-alone Copying Yes
Reduction/Enlargement 25% - 400%
Sorting Function Yes
N in 1 Function 2in1 / 4in1
Poster Function No
Document Glass Size Letter / A4
Scanning Capability B/W & Color Scanning
Max. Interpolated Scan Resolution (dpi) Up to 19200 x 19200 dpi
Optical Scan Resolution (dpi) 600 x 2400 dpi
Input Color Scan Bit Depth 48 bit
Scanner Driver Compatibility Windows®/Mac OS®
Document Viewer Software† Includes Scansoft PaperPort® SE with OCR for Windows® and Presto!® PageManager® for Mac®
OCR Software Includes Scansoft PaperPort® SE with OCR for Windows® and Presto!® PageManager® for Mac®
Formats (Export) TIFF / BMP / MAX / JPG / PDF
"Scan To" feature† Email, Image, OCR, File, FTP
Standard Network Features Printing, Scanning, PC Fax
Supported Network Protocols (IPv4) ARP, RARP, BOOTP, DHCP, APIPA (Auto IP), WINS/NetBIOS, DNS resolver, mDNS, LLMNR responder, LPR/LPD, Custom Raw Port/Port9100, IPP, FTP Server, FTP Client, POP before SMTP, SMTP AUTH, APOP, TELNET, SNMPv1, HTTP Server, TFTP Client and Server, SMTP Client, ICMP, Web Services
Supported Network Protocols (IPv6) NDP, RA, DNS Resolver, mDNS, LLMNR responder, LPR/LPD, Custom Raw Port/Port 9100, IPP, FTP Server, FTP Client, POP before SMTP, SMTP AUTH, APOP, TELNET, SNMPv1, HTTP Server, TFTP Client and Server, SMTP Client, ICMPv6, Web Services
Wireless Network Security WEP 64/128, WPA-PSK (TKIP), WPA2-PSK (TKIP & AES), LEAP (CKIP)
One-Push Wireless Setup Simple setup with your Secure Easy Setup™ Wi-Fi Protected Setup™ or AOSS™ capable router.
Standard Network Interface Network (Ethernet) I/F
Security Functions Function Lock, Setting Lock, Secure Print
Paper Handling Size - Paper Tray Letter, Legal, Executive, A4, A5, B5
Minimum Paper Width/Length (Paper Tray) 5.8"/5.8"
Maximum Paper Width/Length (Paper Tray) 8.5"/14"
Sheet Weight - Paper Tray (max/min) 16 - 28 lbs.
Minimum Input for ADF (Width/Height) 5.8"/5.8"
Max Input of ADF (Width/Height) 8.5"/14"
Sheet Weight - ADF (max/min) 17 - 24 lbs.
Output Paper Capacity (sheets) 100 sheets
LCD Display Yes (monochrome)
LCD Back-lit Yes (green)
Document Memory Backup Yes
Power Source AC 120V 50/60Hz
Power Consumption - Sleep/Standby/Peak 10W / 75W / 320W
Energy Star Compliant Yes
Operating Environment: Temperature 50-91°F
Operating Environment: Humidity 20-80% (w/out condensation)
Machine Noise (Standby/Operating) 32 dBA / 53 dBA
Unit Dimensions (W"xD"xH") 16.9" x 15.6" x 12"
Unit Weight (lbs) 24.5 lbs.
Warranty 1 Year Limited
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