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Brother DS-940DW Duplex and Wireless Compact Mobile Document Scanner

Based on 1,095 reviews
Condition: New
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$229.99
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Arrives Friday, Nov 6
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At a glance

Condition
New
Style
DS940DW
Pattern
New
Dimensions
12.56"D x 2.5"W x 1.79"H
Weight
1.5 lb
Scanner Type
Document, Business Card
Resolution
300 dpi
Warranty
1-year limited warranty

Features 7

  • ULTRA COMPACT At a size barely bigger than a box of spaghetti you can fit this device virtually anywhere (a bag, a purse, a pocket). The Brother DSD (Desk Saving Design) feature reduces the amount of space needed to use the device.
  • FAST SPEED AND DUPLEX SCANNING Scan single and double-sided, documents in a single pass at up to 16ppm. (1) Color scanning doesnt slow you down at all as it has the same scan speed as black and white scanning.
  • REAL MOBILITY With an embedded lithium ion battery and the ability to insert a micro SD card(2) you can use this as a standalone device virtually anywhere. Scan to mobile devices with Brothers free iPrint&Scan mobile app.
  • DRIVERLESS SCANNING Mass storage support lets you utilize a Micro SD card(2) to scan documents and retrieve on a PC without a driver installed. Supports Windows, Mac and Linux environments and TWAIN/WIA for PC/ICA for Mac/SANE drivers. (3)

Description

The Brother DS-940DW duplex wireless mobile document scanner offers easy fast wireless document digitization Scan two-sided color and black and white materials up to 16ppm in a single pass (1) The DS-940DW scans a variety of documents up to 72 inches long and handles business and plastic ID cards Scan- to multiple destinations including File Image OCR Email Network cloud services (5) Mobile Devices and a micro SD card (2) Scan directly to mobile devices with the Brother free iPrint&Scan for mobile app The DS-940DW mobile scanner ultra compact footprint (barely larger than a spaghetti box) takes up limited room on a desk and features the Brother DSD (Desk Saving Design) that saves up to 11 inches of desk space (6) The DSD scan lid reduces the space needed to operate the scanner The DS-940DW is ideal for on-the-go or home/small office professionals and makes scanning easy with features that facilitate scanning including compatibility with Brother’s free iPrint&Scan for desktop app and even the ability to retrieve scanned files installing special software on the connected PC The DS-940DW is compatible with Windows Mac and Linux as well as TWAIN/SANE/WIA for PC/ICA for Mac drivers (3) Includes a one-year limited and free product lifetime online call or live chat support (7) Disclaimers (1)Color and monochrome scan speed letter size paper at 300dpi (2)Additional purchase required (3)Drivers and bundled software available via download at solutions brother Internet connection required Refer to User Guide for more information (4)When connected to a PC with applicable software Drivers and bundled software available via download at solutions brother Internet connection required Refer to User Guide for more information (5)Requires connection to wireless network The Brother IPrint and Scan free download is not available in all countries (6)Based on Letter (8 5 x 11 inch) size paper (7)Free technical support only in USA.

Specs 20

Scanner Type Document, Business Card
Brand Brother
Model Name Duplex and Wireless Compact
Connectivity Technology USB, Wi-Fi
Product Dimensions 12.56"D x 2.5"W x 1.79"H
Resolution 300 dpi
Item Weight 1.5 pounds
Wattage 4.6 watts

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Nov 6

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Top Amazon Reviews


Take anywhere, use without a computer.
Style: DS940DW Pattern: New
I ordered a different model at first and it did not come with the micro sd card feature. Brother does not advertise well and their instructions are terrible. I look at a lot of websites to see what people who have bought the product are saying. The instruction did not say to fast press the on/off button to turn it on and did not say you have to press and hold the on/off button for 6 seconds and then let go to turn it off. Almost returned it because the lights were flashing and slow to respond when turning on and off. After figuring out that on and off procedure, the scanner worked flawlessly. I like the double sided scan feature and you do not need a computer if you are saving to the SD card. I bought this brand and model because on a government computer, you cannot just hook up any hardware and put in any software without getting approval from the IT department which usually do not allow anything they do not know about. You would think being part of the largest organization in the State that you would have the best of everything. The exact opposite is true. I have antique hardware and am using Microsoft 2013 which was a recent upgrade from Microsoft 2003. The lazerjet printer looks like it belongs in a museum. This scanner solved my problem. It plugs in and becomes an external drive. It scans 14 pages in 40 seconds or less. It can scan in the jpeg or pdf format. It takes up very little space on your desk and is very quiet. You can scan and save through Wi Fi, SD card, or USB cable. The utilities software is alright, not the greatest and like all other brands, they allow you a sample of the PDF software but want you to buy the full version. They make like it comes with the full version of the software but then it begs you to buy it. The only thing is that you cannot scan a page in a book. The page you are scanning has to pass through the scanner, unlike a scanner bed which will allow you to scan an open book. Not unless you rip out the page and pass it through the scanner. I use this scanner everyday at work and it is holding up very well. Legal documents, maps, timesheets, can be scanned and sent through your computer saving you a trip from your remote office to your main office saving you time, money, and gas. Especially with the price of gas today, you will be happy you purchased this scanner. Do not forget to buy the hard case to protect your scanner. I take my scanner where ever I go. ... show more
Reviewed in the United States on March 28, 2022 by BOJO

if you know how to set up infrastructure wifi connection (not ad-hoc wifi), It is a great product.
Style: DS940DW Pattern: New
This scanner does not just act as an ad-hoc wifi (Wireless Direct) connection. It can truly connect to your wifi router (Infrastructure mode) and let every device in the same wifi network control it (if you know how to set it up). Most people gave this product one star because they couldn't figure out how to set up the Infrastructure mode wife connection. You can't blame them because it is very complicated to do so and it's a shame that Brother makes this great product but does not give a clear instruction. Here's how you do it. First, connect this scanner to a laptop/desktop with the included USB cable to charge it until the battery signal turn from orange to stable green (not just flashing green, ~2 hour). Second, remove the scanner from the USB connection. Install Brother's iPrint&Scan in Windows PC or iOS and connect the scanner using the Wireless Direct through Brother's wifi network using Brother's Direct Wifi network (Direct-xxxx-xxxxx_BRxxxx and the second password printed on the bottom (Pass:xxxxxxxx)). Once it is connected in iPrint&Scan through Wifi Direct, tap Machine setting in the App and it will bring you to a webpage-based interface in a standard web browser (Microsoft Edge or iOS Safari) that allows you to set up the scanner as an infrastructure mode. You can also do Machine setting in another app/software called Brother Utilities instead of using the iPrint&Scan. In the webpage interface, you need to login (using either the default password "initpass" or the first password printed on the bottom of the scanner (Pwd:xxxxxxxx). Once you login, you can change the password or leave as it is. After you login, go to "Network". Under "Network", select "Wireless". On the left side, you should see "Wireless (Setup Wizard)". Click "Wireless (Setup Wizard)" and start Wizard and follow a step-by-step installation wizard to connect the scanner to your home or office wifi network (your home or office wifi router). It only supports 2.4G wifi so connect to your home 2.4G but not the 5G wifi and you have to input the password or security key of your home wifi network. Once the scanner is connect to your home wifi network, every laptop or smartphone device in your home wifi network can control the scanner wirelessly. If you laptop has Windows Firewall, you may have to set exception to allow your laptop find the scanner (or you can input the scanner's direct IP address to help the PC laptop find the scanner). I hope this helps everyone who bought this scanner. I almost returned this scanner because I couldn't figure out how to set up the Infrastructure mode wife connection. Once I figured it out, this scanner works like a charm and it is so versatile. ... show more
Reviewed in the United States on September 26, 2021 by WM

Problematic but Does Work and finally gave it up and returned
Style: DS940DW Pattern: New
I read many of the reviews before I bought the scanner. A lot of folks had a difficult time with using this scanner. Here are my observations. First, it is difficult to set up - the Brother interface is not very easy to use. But, it does work and if you are not very good at setting up programs, I'd get a friend to help who is. I have Windows 11 and I downloaded the driver for this product and did not see if Windows had a generic driver for this scanner. I also checked the firmware upgrade and downloaded the Brother iPrint&Scan program. This program is essential for running and setting the parameters for the scanner settings. I also downloaded the Power PDF Standard program and didn't find it useful because I already have a program that edits pdf files. Using the scanner can be problematic because it is fussy. I bought the scanner to scan journals an aunt wrote on 8.5x5.5 notebook three ring paper. I didn't have any problems scanning these pages, and the paper is over 40 years old. I think that paper that is old or rough may leave residue on the rollers, so I cleaned the scanner (see manual - which I also download/printed and it was really helpful) with eye glass cloths. This seemed to keep the printer from saying there was a paper jam. It seemed to work best when I unplugged it from the computer when not in use (avoided connection errors). I am using it with the usb connection. I was able to do duplex scanning, which one review said could not be done on the usb connection. I also gently help the paper clear the scanner which also eliminated triggering the "paper jam" error. The scanner, in my case, worked the best when set on 300 x 300 dpi, when I scanned using a lower resolution the paper jam error would happen. And, the scanner seems to have an internal memory which can get full. In my case, because I was scanning about 100 pages at a time, when i went to download the pdf file a couple of times I was informed that the memory was full. If you use the iPrint&Scan program and go into the File Type PDF drop down menu and check High Compression PDF, then the program will download the pdf file. I looked online for help with this issue and found nothing helpful. I do not know if it is possible to clear the memory. I am hoping that it clears itself when the document is finished and you close it. The bottom line, for me, is that this scanner is great if you are willing to keep playing around with different menu settings. And you use the program to run the printer. I was never able to use the three buttons on the printer itself to run the printer. Basically it can be a pain to use, but for me it was the most sensible choice. Maybe it's easier if you are using it to scan receipts and that kind of thing. But since the product has such a high return rate, I figure that others are encountering similar problems. Good luck! UPDATE: I returned the printer, just too many problems. The more recent was it had connection problems. I bought a more expensive model, different manufacturer. ... show more
Reviewed in the United States on May 21, 2025 by Shinshu Roberts

Standalone sdcard use works but is restrictive
Style: DS940DW Pattern: New
I bought this for 2 reasons. One is that I have a brother printer/scanner that has worked well for many years. Very happy with that. The other is that I wanted a truly standalone scanner. This review is solely for that aspect. It does work, but it is limited with many minor issues that ought to have been addressed in the design. 1. You cannot charge this from a USB charger. It HAS to be connected to a PC. Seriously, you say? Look it up, there are threads on this subject. Ridiculous is the phrase most often used. 2. It will not scan multiple pages to a single file. 3. It does not allow any flexibility in file naming 4. The included quick start guide is useless. 5. The full online manual for this product barely mentions SDCARD mode 6. It lacks any explanation as to the basics of feeding it, or what the Start/Stop button and indicator are for 7. No category selection (of document type, such as important, receipt, etc). In addressing these, somewhat: 1. It seems, by reports of others, that it will do a lot of pages on a single charge. Plus there are some funky workarounds with devices that fool the device into thinking it is connected to a PC. 2. Disappointing. 3. Really disappointing. 4. Seems common these days. 5. Very disappointing. 6a. You will have to charge it up using a PC. The battery light will become solid green. Shut down, disconnect. 6b. Open the cover. 6c. Make sure slider switch on side is changed to sdcard. 6d. Press power. Wait until everything stops flashing. 6e. Present paper to the feeder. The plastic slider should probably be all the way to the right for most uses. 6f. Scanner will grab the paper 6g. After a few seconds it will scan it. Things to not do: Don't touch the start/stop button. Whatever it is for, it has not needed for this use. Pressing it seems to result in it reporting a paper jam later on. 7. Disappointing. One would have thought that this would be standard. Doesn't have to be complicated, just enough to separate basic kinds (receipts vs statements etc) from each other. High points: Once you figure it out, it works well enough. It is fast, and does both sides of the page (thankfully into the same file). It could have been way better for just a tiny bit more consideration. --- And why don't I want to use the s/w? Because s/w in general cannot get anything right. For example, I accidentally pasted something incorrectly above. When I tried to remove it, using cut operation, I got the million-mile-an-hour scrolling that made it impossible to select the range properly. Oh, come on, this isn't the 1980s. When is this going to be fixed. ... show more
Reviewed in the United States on March 20, 2026 by Richard.

Impressed
Style: DS940DW Pattern: New
I am really impressed with this scanner. I have been using all-in-one printers because I “occasionally” needed to scan in a document or photo. For that “convenience”, it was always complicated because I would have to arrange to bring what I needed scanned to the printer. It is so nice to have a no-compromise scanner that I can take with me, whether that is to the living room, the office, or even just my car. I love that it scans front and back of the documents at the same time, as the duplex paper handling I was used to would jam frequently. The scan quality is consistantly better than that of the OfficeJet I had been using. There are only two drawbacks. First, if you are frequently scanning long documents (say 10 pages or longer) it can get tedious feeding each page one-at-a-time. For short documents (1-5 pages) it’s no problem. This is not a problem scanning photos, because the alternative I have experienced on Officejets is even more clunky than feeding photos in manually. Second, the software that comes with it is terribly outdated. Luckily, with both Mac and PC, the software built-in to the OS is quite good, so I have never used the Brother software beyond testing it out. A “third” possible ding is that the cable that comes with it is for USB-A, in a time where most PCs are USB-C. On the scanner-side it uses a USB Micro-B connector, which is a standard but isn’t very common. Rather than using a converter, I purchased a USB-C to Micro-B cable. and that had worked out well for me. ... show more
Reviewed in the United States on March 14, 2022 by Druce

Good value.
Style: DS940DW Pattern: New
Very nice. Very small yet you can use it to scan full legal size documents. It scans two sided documents. Very well aligned. Good investment. Easy to connect to any computer, i-pad, laptop.
Reviewed in the United States on September 30, 2026 by Ines Aponte

Duplex - Only on WiFi & Memory card option scanning
Style: DS940DW Pattern: New
For scanning documents from customers in Cafés or their homes - it's SUPERB. Scanning via cable gives you the most control of quality via their software Port / however it does NOT allow for Duplex (*double sided in one pass ) --- for Duplex scanning- use the WiFi option . I'm using the app on my phone 📱 to connect to the scanner. You CAN connect to scanner .... you set up as if the network IS the scanner ip .... also - the scanner WiFi defaults to "metered WiFi " on your phone. - switch it over to UN-metered so it doesn't time out - and connects easier. You can turn on or off the function of DUPLEX or choose color/ b&w / jpg or pdf. From there - I email the doc to me - you can also upload to cloud apps on your phone /// the mini SD card slot - didn't work on mine. Because scanner could not pick up the memory card. It acted as if no card was inserted. ... show more
Reviewed in the United States on March 14, 2022 by Mario G

Doesn't meet some expectations after using Fujitsu ScanSnap ix100 for years
Style: DS940DW Pattern: New
Having owned a Fujitsu ScanSnap ix100 for many years, I have expectations for this Brother scanner that have not been met. 1. The scanner will only charge its battery from a USB port on a computer. It will not charge from a USB adapter or power bank. Seems like it defeats the purpose of being wireless if I have to connect it to the computer anyway to charge. 2. When scanning anything longer than 14", the auto deskew function must be disabled. This means that slightly crooked long receipts will be crooked in the output file. The Fujitsu ScanSnap will deskew even long receipts. Hoping that the included PDF software with the Brother scanner would offer a deskew/small rotation ability after the fact, it does not. The only solution I know of is to scan to an image format like JPG and then use photo editing software to straighten the scan and then convert and OCR the image to a PDF after that. Yikes. 3. The Wi-Fi configuration process is only available in the main software setup program or from the web config portal on the scanner itself. This is not as convenient as other wireless scanners. Fortunately, WI-Fi settings don't change very often. 4. The scanning software seems a little temperamental at times. Occasionally, I have to unplug and replug in the scanner for the software to see that the scanner is present and ready to scan. I have even had it disconnect in the middle of a scan. I've also seen it where I can leave the scanner plugged in and exit and restart the software and then it's fine. 5. My initial impressions are that the battery doesn't last long. Being able to scan duplex is a definite advantage over the Fujitsu ScanSnap ix100. I will keep the Brother and not return it. It's just not as good as I was expecting given experience with other scanners. ... show more
Reviewed in the United States on March 7, 2025 by schlammbad
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