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Technical Details
- Multifunction device prints, copies, scans, and faxes in one compact form factor with built-in wireless networking
- Prints and copies at 23 pages per minute in monochrome; scans at 19200 x 19200 dpi resolution (600 x 2400 dpi optical) at 48-bit color depth
- Support for 802.11b/g wireless networking
- 35-page automatic document feeder makes copying, faxing and scanning multiple pages easy
- Measures 21.7 x 20.1 x 20.5 inches (WxDxH)
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Product Description
Amazon.com Product Description
Amazon.com Product Description The Brother MFC-7840W Laser Multi-Function Center with Wireless Networking is an economical, compact device that can handle all your small office printing, copying, scanning, and faxing needs. With crisp, high-quality output and fast print speeds, you won't be waiting around for the MFC-7840N to finish its job. It is compatible with both Macs and Windows, and built-in 802.11b/g wireless networking makes it easy for you to share the device with everyone in your office.
Compact, Elegant Design and Multiple Networking Options
The MFC-7840W measures a compact 16.9 x 15.6 x 12 inches (WxDxH) and tips in at just under 25 pounds, taking up minimal space in your office. Featuring an elegant black color scheme, the device won't look out of place in any office. An LCD backlit display keeps you apprised of the device's status.
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 Support for wireless networking makes sharing the MFC-7840W a snap. View larger. |
The MFC-7840W measures a compact 16.9 x 15.6 x 12 inches (WxDxH) and tips in at just under 25 pounds, taking up minimal space in your office. Featuring an elegant black color scheme, the device won't look out of place in any office. An LCD backlit display keeps you apprised of the device's status.
With USB, Ethernet and 802.11b/g wireless interfaces, setting up this printer for use with a single computer or with a network is simple. Once connected, everyone in your office can print, fax, and scan. The wireless networking supports WEP 64/128, WPA-PSK, WPA2-PSK, and LEAP for security so you won't have to worry about your sensitive documents falling into the wrong hands.
Fast Print Speeds and Outstanding Output with High Compatibility
With crisp black output at 2400 x 600 dpi, no one will be straining their eyes to read your latest report. And with the prints coming out at a speedy 23 pages per minute, you won't have to wait for them either. The printer includes 32MB of memory and has a maximum monthly duty cycle of 10,000 pages. Thanks to support for PCL 6 and BR-Script3 print emulations, the printer will work seamlessly with a large variety of computers.
Flexible Paper Handling with 250-Sheet Input Capacity
The MFC-7840N features a 250-sheet paper tray that can be adjusted for both letter and legal size paper. Other media, such as envelopes and labels can be fed through the single-sheet bypass slot. The fold-out rear output tray reduces the possibility of paper jams by allowing for a straight paper path when printing envelopes and other thick media.
Make Copies and Faxes without Turning on the Computer
Using the same components that does the printing, you can make copies at the same fast 23 pages per minute. Thanks to a 35-page auto document feeder, you can copy, fax, and scan multiple pages without standing around manually swapping pages. The copier lets you reduce and enlarge from 25 to 400 percent of the original, and you can put 2 or 4 sheets on one page. The copier also supports a sorting function.
A built-in 33.6k bps fax modem lets you fax documents at speeds of up to 2 seconds per page. The device supports Caller ID, out-of-paper reception, external TAD interface, distinctive ring detection, auto fax reduction, fax forwarding, automatic redial, dual access, and fax broadcasting of up to 258 locations at once. Built-in memory allows the device to store up to 600 pages in memory for faxing.
Scan Photographs, Images, and Documents
Scan photographs and pictures at a resolution of up to 19200 x 19200 dpi (600 x 2400 dpi optical) at 48-bit color depth for integrating high-quality images into your documents. With the included OCR software for both Windows and Mac, you can also easily change paper documents into editable digital copies.
The Brother MFC-7840N Laser Multi-Function Center with Networking measures 21.7 x 20.1 x 20.5 inches (WxDxH) and is Energy Star compliant. It is backed by a one-year warranty.
Product Description
The Brother MFC-7840W Laser Multi-Function Center with Wireless Networking is an economical, compact device that can handle all your small office printing, copying, scanning, and faxing needs. With crisp, high-quality output and fast print speeds, you won't be waiting around for the MFC-7840N to finish its job. It is compatible with both Macs and Windows, and built-in 802.11b/g wireless networking makes it easy for you to share the device with everyone in your office.
Available Warranties for This Item
Customer Reviews
Most Helpful Customer Reviews
323 of 327 people found the following review helpful
I spent about a week researching for just the right multi-function printer for my needs. I own a small business with about 30 employees so I needed more than an inkjet but didn't require a 'corporate' $1000+ version either. I needed fax, scan, copy, and print capability with laser printing and built-in wireless capability. Suprisingly, there are not that many printers on the market that can give you all of these in one package. Originally I was going to purchase the Brother's MFC-8870 for around $500 which all the reviews on the internet recommend, but I found this while browsing around and realized that it had just come out a few weeks ago. Although there were no reviews out yet for this new printer, it was considerably less expensive than the 8870 and the only thing I seemed to be losing was auto-duplexing so I made the purchase. It took about 15 minutes total for me to set up an ad-hoc wireless printer setup and everything works great. The scans are nice, the printing is very crisp and clear even in very small fonts. The only thing I haven't tried yet is the fax which I won't be using much. I really can't say anything bad about this product. Sure it would be nice to have a legal-size flatbed, auto-duplex, and 64mb memory (instead of the default 32mb) but for the money this can't be beat. Overall, this seems to be a really great product at a great price. I highly recommend this if you need a 4-in-1 with wireless capability. Definitely the best on the market for this niche.
200 of 204 people found the following review helpful
I replaced my Brother MFC 7420 with this MFC-7840 and am very happy with the upgrade. It does everything I need and is small and quiet in my small office. It has a straight paper passthrough for envelopes, which works great. Read below for a comparison to other similar models.
I've had a Brother MFC-7240 for 2 or 3 years when the fuser went out last week. A new fuser is $150 + $75-100 to install, so needless to say, I decided to buy a new all-in-one machine. My Konica Minolta 2430DL color laser printer also conked out at the same time and I investigated replacing both with a color laser AIO. After not having much luck finding one of those that could easily print envelopes, I decided to stick with two different machines. In retrospect, I'm glad I did - it's good to have two printers around to back each other up just in case. (If you've got really light duty needs, consider the Samsung CLX-3160FN, which I came across in during this first shop. It's dirt cheap for a color laser AOI. Very small and very quiet, but not solid enough for a small office load.)
After reading up on monochrome laser AOIs for much too long, I narrowed my choices down to about a dozen in the $200-$500 range. I refuse to buy something I can't see and play around with first, so I went shopping at local stores to see the models I chose in action. I went to Staples, Office Depot and OfficeMax. Tried for Circuit City and Best Buy also, but believe it or not, they don't carry ANY monochrome laser AIO machines in their stores - only on-line. A manual feed and envelope printing are a must for my use, and reviews I read were conflicting, so I took a big stack of envelopes to test the machines out myself. I also took my own originals (a purchase order and envelope - both with various sizes of text and graphics) so I could compare apples to apples.
Most machines I tested had decent quality copying. There were differences, but all were acceptable for b&w general office work. Of course, copying was the only feature I could really test at the store. They all warmed up quickly and most were quiet enough. Here's what I found...
Brother MFC-8460 is too loud, big and imposing for my small office and took a little longer to warm up.
Canon 4270 has duplexing, which I was in the market for, but a funky half-tray for paper that was hard to load and looked like it could have problems down the road. Other than that, I liked it a lot (my second choice). Printed envelopes well and looked stylish.
Canon 4150 printed the envelope crooked and the coverage was too heavy and "grayed" the white envelope. I imagine this might be improved when changing settings from the print software to adjust for the thicker envelope paper.
HP1522NF printed the envelope uncrinkled, but it made a LOT of noise curling around the paper feed, which worried me. It also "grayed" the white envelope without being able to select a "thick paper" option.
HP M2727 did not print the envelope well at all.
Samsung SCX-4725fn has an easy manual feed, but toner on my graphics flaked off the envelope. It copied very quickly and quietly.
Brother MFC-7840w and MFC-7440n are pretty much the same except the they are different colors and the 7840 is wireless and better for networking. They both have backs that open so labels and envelopes can pass straight through and not wrinkle or curl at all.
I ended up with the Brother MFC-7840W from OfficeMax for $299.00. (It was $249 at Staples and Office Depot with a mail-in rebate - it's a long story why I couldn't get back to one of them and save the $50.) Not only did I like this machine best in my test, but I was happy with my old MFC-7420 and hope this updated version will treat me as well. The one thing I really wish the 7840 had that is does not, is duplex printing. If it had that, it would be the perfect machine.
I did a USB installation to Windows XP, which was simple and took about 45 minutes, but unfortunately the copier and scanner did not work. I called tech support and got through quickly. They couldn't help me, but quickly bumped me up to the next level of tech support. This next level was actually staffed with a real engineer who had the machine in the same room with him. After a few diagnostics he had me run, he determined that the logic board was defective and volunteered to send me a new one. I opted to return it to OfficeMax, who exchanged it with no problem.
I just plugged the new machine in and didn't reinstall the software. Now everything works perfectly and I'm very happy with this machine.
I've had a Brother MFC-7240 for 2 or 3 years when the fuser went out last week. A new fuser is $150 + $75-100 to install, so needless to say, I decided to buy a new all-in-one machine. My Konica Minolta 2430DL color laser printer also conked out at the same time and I investigated replacing both with a color laser AIO. After not having much luck finding one of those that could easily print envelopes, I decided to stick with two different machines. In retrospect, I'm glad I did - it's good to have two printers around to back each other up just in case. (If you've got really light duty needs, consider the Samsung CLX-3160FN, which I came across in during this first shop. It's dirt cheap for a color laser AOI. Very small and very quiet, but not solid enough for a small office load.)
After reading up on monochrome laser AOIs for much too long, I narrowed my choices down to about a dozen in the $200-$500 range. I refuse to buy something I can't see and play around with first, so I went shopping at local stores to see the models I chose in action. I went to Staples, Office Depot and OfficeMax. Tried for Circuit City and Best Buy also, but believe it or not, they don't carry ANY monochrome laser AIO machines in their stores - only on-line. A manual feed and envelope printing are a must for my use, and reviews I read were conflicting, so I took a big stack of envelopes to test the machines out myself. I also took my own originals (a purchase order and envelope - both with various sizes of text and graphics) so I could compare apples to apples.
Most machines I tested had decent quality copying. There were differences, but all were acceptable for b&w general office work. Of course, copying was the only feature I could really test at the store. They all warmed up quickly and most were quiet enough. Here's what I found...
Brother MFC-8460 is too loud, big and imposing for my small office and took a little longer to warm up.
Canon 4270 has duplexing, which I was in the market for, but a funky half-tray for paper that was hard to load and looked like it could have problems down the road. Other than that, I liked it a lot (my second choice). Printed envelopes well and looked stylish.
Canon 4150 printed the envelope crooked and the coverage was too heavy and "grayed" the white envelope. I imagine this might be improved when changing settings from the print software to adjust for the thicker envelope paper.
HP1522NF printed the envelope uncrinkled, but it made a LOT of noise curling around the paper feed, which worried me. It also "grayed" the white envelope without being able to select a "thick paper" option.
HP M2727 did not print the envelope well at all.
Samsung SCX-4725fn has an easy manual feed, but toner on my graphics flaked off the envelope. It copied very quickly and quietly.
Brother MFC-7840w and MFC-7440n are pretty much the same except the they are different colors and the 7840 is wireless and better for networking. They both have backs that open so labels and envelopes can pass straight through and not wrinkle or curl at all.
I ended up with the Brother MFC-7840W from OfficeMax for $299.00. (It was $249 at Staples and Office Depot with a mail-in rebate - it's a long story why I couldn't get back to one of them and save the $50.) Not only did I like this machine best in my test, but I was happy with my old MFC-7420 and hope this updated version will treat me as well. The one thing I really wish the 7840 had that is does not, is duplex printing. If it had that, it would be the perfect machine.
I did a USB installation to Windows XP, which was simple and took about 45 minutes, but unfortunately the copier and scanner did not work. I called tech support and got through quickly. They couldn't help me, but quickly bumped me up to the next level of tech support. This next level was actually staffed with a real engineer who had the machine in the same room with him. After a few diagnostics he had me run, he determined that the logic board was defective and volunteered to send me a new one. I opted to return it to OfficeMax, who exchanged it with no problem.
I just plugged the new machine in and didn't reinstall the software. Now everything works perfectly and I'm very happy with this machine.
120 of 126 people found the following review helpful
This is a very nice printer and I agree with the other reviewers positive feedback. But there is one problem I have found for those who print forms and envelopes via the manual feeder. When the printer is in sleep mode and you put a piece of paper in the manual feeder the printer wakes up and does a small grab of the paper. Unfortunately this small grab puts the paper off center so if you are printing on form paper it is a real nuisance. A solution may be to wake it up first by printing something else, then put in your form paper and print before it goes to sleep again, but again not the best solution. Also the lack of ability to put multiple envelopes in the manual feeder I find is a weakness. All my older LaserJets could at least handle 5-6 envelopes in the manual feeder. After reading many reviews though I find that trying to find a MFP that can handle envelopes is a major problem in itself and this printer is no different. I also noticed the toner that came with the printer did not last for nearly as long as advertised, it started showing toner low very very soon!
Most Recent Customer Reviews
Excellent!
If you can get this for a good price, I highly recommend it. I was previously using an HP laser and found it to be too expensive for toner and the quality was just average. Read more
Published 24 days ago by LawBall7
Cartridge empty too often
This all in one is great but you will spend a lot of $$$$ in cartridge. This machine says "Toner life end - cartridge empty" when it is not and WILL NOT work if you do not replace... Read more
Published 28 days ago by StephWood
Great printer!
I purchased my printer in September of 2008, and it is still going strong. I have only hit a few glitches, but nothing horrible. Read more
Published 1 month ago by I. Hart
Problem after problem after problem
This Brother printer turned out to be a disaster.
The wireless network feature NEVER worked properly. I tried everything: fixed IP address, variable IP address, etc. Read more
The wireless network feature NEVER worked properly. I tried everything: fixed IP address, variable IP address, etc. Read more
Published 1 month ago by April Rains
So far the best printer I have ever used
This printer works great and it has been almost a year since my purchase and haven't changed the cartridge yet. It takes the print commend so fast and prints pretty fast. Read more
Published 2 months ago by Berry_Lover
This printer is a definite must have!
If you're looking for an AMAZING printer this is the one for you! I purchased this printer about a year ago and give it FIVE STARS in every category. Read more
Published 3 months ago by Laurie Kay
Tired of this printer
I personally am very tired of this printer. The automatic feeder does not work properly. It grabs multiple papers at the same time. Read more
Published 3 months ago by Evelse
It's reasonable.
OK. I have had this printer in a small office now for two years. It has been a little workhorse. HOWEVER, it's like the employee that you like and you want to help him/her in... Read more
Published 4 months ago by jasonTN
Save your money
I purchased this 18 months ago from a Office Supply store, Just after a year it started to "squeal" when printing. Read more
Published 4 months ago by Classy n Sassy
HUGE "surge" requirement at start up, awake from sleep, idle draw
I've had this printer for 2 years now, i bought it here at Amazon for under $200. I have been very happy with the overall capabilities of the printer but have had a constant... Read more
Published 5 months ago by Chris Wright
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