Brother DS-640 Compact Mobile Document Scanner, (Model: DS640) 1.5"x2"x11.9"

4.3 4.3 out of 5 stars | 5,973 ratings

Price: 119.99

Last update: 01-11-2025


About this item

FAST SPEEDS - Scans color and black and white documents a blazing speed up to 16ppm (1). Color scanning won’t slow you down as the color scan speed is the same as the black and white scan speed.
ULTRA COMPACT – At less than 1 foot in length and only about 1. 5lbs in weight you can fit this device virtually anywhere (a bag, a purse, even a pocket).
READY WHENEVER YOU ARE – The DS-640 mobile scanner is powered via an included micro USB 3. 0 cable allowing you to use it even where there is no outlet available. Plug it into you PC or laptop and you are ready to scan.
WORKS YOUR WAY – Use the Brother free iPrint&Scan desktop app for scanning to multiple “Scan-to” destinations like PC, Network, cloud services, Email and OCR. (2) Supports Windows, Mac and Linux and TWAIN/WIA for PC/ICA for Mac/SANE drivers. (3)
OPTIMIZE IMAGES AND TEXT – Automatic color detection/adjustment, image rotation (PC only), bleed through prevention/background removal, text enhancement, color drop to enhance scans. Software suite includes document management and OCR software. (4)

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Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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Brother DS-640 Compact Mobile Document Scanner, (Model: DS640)

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Top reviews from the United States

Amazon Customer
5.0 out of 5 stars Buy This Scanner! It is Perfect!
Reviewed in the United States on September 25, 2024
The Brother DS-640 Compact Mobile Document Scanner, (Model: DS640) is perfect. Fast and easy to operate. Do not let the small size fool you. This scanner exceeds expectations for a portable scanner.
LWG
5.0 out of 5 stars Works Like A Dream!
Reviewed in the United States on August 8, 2024
Not sure why I'm surprised how easy it is to use this, everything else I've bought from Brother has been top-notch. I was hesitant to try a feed-through scanner instead of the classic flatbed but this scanner is amazing. It's compact and easily portable, captures details beautifully, and the iPrint&Scan app makes everything work effortlessly. (I also have a brother label maker, toner printer, and sewing machine, this has cinched it that Brother is my go-to for all applicable, future technological purchases.)
Ryan K. Edwards
5.0 out of 5 stars Works great can't tell it's refurbished
Reviewed in the United States on October 21, 2024
This looks and works like new you wouldn't be able to tell it was refurbished aside from the sticker on the back that says it. Setup was easy I just went to the Brother website to download drivers. Scans fast and easily fits in my work bag.
Customer image
Ryan K. Edwards
5.0 out of 5 stars Works great can't tell it's refurbished
Reviewed in the United States on October 21, 2024
This looks and works like new you wouldn't be able to tell it was refurbished aside from the sticker on the back that says it. Setup was easy I just went to the Brother website to download drivers. Scans fast and easily fits in my work bag.
Images in this review
Customer image
Barbara
4.0 out of 5 stars Gets the job done!!
Reviewed in the United States on March 2, 2024
I just need something as a backup plan. Often times the scanner in my office takes a day off. And I am still expected to get my work done. So I purchased this and it definitely gets the job done. It was easy to setup. It fits perfect in my work backpack. Did I mention the price did not break my budget. For the amount of documents that I am required to scan (not a lot) this little device works great.
Samantha
5.0 out of 5 stars The most important book keeping accessory
Reviewed in the United States on November 13, 2024
I absolutely love this and couldn't imagine not having it now. I have scanned lots and lots of things, still works beautifully. Very fast scanning and processessing. Can also change settings to accommodate long receipts.
Mike R
5.0 out of 5 stars GREAT BUY
Reviewed in the United States on November 3, 2024
Needed this for my job, bought the "refurbished" instead of new. Did not see any scratches, dents etc. Works AWESOME, it takes a few scans to learn how to hold the paper correctly for it to feed since there is no tray, but this was NOT a problem. LOVED IT
Why?
5.0 out of 5 stars Amazing Scanner!
Reviewed in the United States on September 23, 2021
I bought this scanner because my Epson scanner that was in a checked bag got lost. Decided to give this a try. This is by far a better scanner than the Epson for this product class. I have to scan business documents on the go and this Brother's scanner has really high quality scans. It scans at 300 dpi but the scans look just as good as my office's thousand+ dollar flat bed scanner that scans at 1200 dpi. (Epson's website markets their product as 1200 dpi but the software never lets you go above 300.) Even at 300 dpi, the scans on the Brother's scanner will still save at around 11-12 MP per page at the highest resolution--way more than I need. The build quality is better than the Epsons too. The software is really intuitive and I had no problem transitioning over.

A couple things I've noticed. There is a firmware/driver update on Brother's website for this scanner that won't install on my computer. It's not a big deal to me because the scanner does work great already without it. Lastly, the scanner doesn't do as well as a flatbed scanner for archiving children's artwork that has artwork glued to it. It's still 5/5 because this scanner isn't really meant for that. Needless to say I'm going to get a Brother's flatbed scanner for that purpose because this one has far exceeded my expectations!

Edit: After about 300-400 scans, there's a black line that appears on the scans. Other reviews have the same issue. There is a notch on the scanner that detects when there is a page inserted and holds the page. It looks like this notch is a mechanical issue and not an easy software fix. This isn't a big deal for me but if you are using the scanner for archiving purposes it might be a deal breaker to have this line.
nikkolaus
4.0 out of 5 stars Critical Issues and Easy Functionality
Reviewed in the United States on October 15, 2023
So, let's start this off by saying one this -- Yes! The DS-640 is a great scanner... HOWEVER.. It does have some issues that bring it down a peg or two..

I'll start this off by highlighting the positives --
It's portable. It's easy to use. It's lightweight.

On the downside --
It's infuriating after scanning only a few documents that you're told "OH NO! We're out of memory!" .. The first time it happened I stared at the message on-screen and thought to myself.. How the heck can it be out of memory when I have 64 GB of high-speed RAM in the computer... Then I remembered that the chips inside these scanners have temporary memory built-in... but then the kicker... ...buuut I only scanned TWO PAGES... They were 3 color (black, blue, red) documents and standard paper size. It's not like it was a full-size poster in crisp detail at maximum resolution, bitrate, with edits... This was a major failure of the design, and was actually my first experience with the scanner, which as I don't need to mention, is NOT GOOD! A terrible look for the BRAND, as this was my first ownership of their brand's product, and not good for the future of this little new device sitting on my desk with the threat of return, due to a degraded trust in the product. If it's going to fail me on day one, what's it going to do on day 365?

That brings me on to my next quarrel with this device. Resolution and color limitations by size. If I want to scan a sheet of paper at the fullest-size available for this device in the MAXIMUM allowed quality (resolution and color and bitrate), why am I limited from doing so by software? We physically know the scanner can do it, because we can do it with other smaller sheets and the compliance with the HARDWARE is there... but for some reason, I get rejected by software when I want to actually use the product to its fullest potential, hardware wise.

With auto document sizing set to "On" you can only scan stuff at a resolution of 300x300 dpi, regardless of being set to black and white or full 24-bit color.

The device does have a slider to control a guide for paper size, but it's so flimsy and loose in the track that even if a document does start to kink to one side, it's pushing that guide out of the way. No sense in even having it there, really.

The port on this scanner is not a generic connection, and requires a dedicated special cable to hookup to your PC by USB, so don't expect to be able to head down to your local PC repair shop and snag a new cable after your pet gerbil decided that the big thick black cable looked like a delicious after-dinner licorice dessert.

With all this in mind, choose carefully.
If you're using this to scan documents in an office setting, it's fine, I guess. Just be ready to scan that 43-page packet 5 times over until the software quits telling you that it magically ran out of memory.
If you're using this to scan photos, whip out the old handy-dandy ruler and be ready to fight with size-presets telling you that you can't use the fullest scan quality on auto-sizing.

As the package says -- Be sure to save your box and packing materials, in case you do ever need to send the unit back in for service or repairs. I recommend buying a wet/dry scanner cleaning kit.
Customer image
nikkolaus
4.0 out of 5 stars Critical Issues and Easy Functionality
Reviewed in the United States on October 15, 2023
So, let's start this off by saying one this -- Yes! The DS-640 is a great scanner... HOWEVER.. It does have some issues that bring it down a peg or two..

I'll start this off by highlighting the positives --
It's portable. It's easy to use. It's lightweight.

On the downside --
It's infuriating after scanning only a few documents that you're told "OH NO! We're out of memory!" .. The first time it happened I stared at the message on-screen and thought to myself.. How the heck can it be out of memory when I have 64 GB of high-speed RAM in the computer... Then I remembered that the chips inside these scanners have temporary memory built-in... but then the kicker... ...buuut I only scanned TWO PAGES... They were 3 color (black, blue, red) documents and standard paper size. It's not like it was a full-size poster in crisp detail at maximum resolution, bitrate, with edits... This was a major failure of the design, and was actually my first experience with the scanner, which as I don't need to mention, is NOT GOOD! A terrible look for the BRAND, as this was my first ownership of their brand's product, and not good for the future of this little new device sitting on my desk with the threat of return, due to a degraded trust in the product. If it's going to fail me on day one, what's it going to do on day 365?

That brings me on to my next quarrel with this device. Resolution and color limitations by size. If I want to scan a sheet of paper at the fullest-size available for this device in the MAXIMUM allowed quality (resolution and color and bitrate), why am I limited from doing so by software? We physically know the scanner can do it, because we can do it with other smaller sheets and the compliance with the HARDWARE is there... but for some reason, I get rejected by software when I want to actually use the product to its fullest potential, hardware wise.

With auto document sizing set to "On" you can only scan stuff at a resolution of 300x300 dpi, regardless of being set to black and white or full 24-bit color.

The device does have a slider to control a guide for paper size, but it's so flimsy and loose in the track that even if a document does start to kink to one side, it's pushing that guide out of the way. No sense in even having it there, really.

The port on this scanner is not a generic connection, and requires a dedicated special cable to hookup to your PC by USB, so don't expect to be able to head down to your local PC repair shop and snag a new cable after your pet gerbil decided that the big thick black cable looked like a delicious after-dinner licorice dessert.

With all this in mind, choose carefully.
If you're using this to scan documents in an office setting, it's fine, I guess. Just be ready to scan that 43-page packet 5 times over until the software quits telling you that it magically ran out of memory.
If you're using this to scan photos, whip out the old handy-dandy ruler and be ready to fight with size-presets telling you that you can't use the fullest scan quality on auto-sizing.

As the package says -- Be sure to save your box and packing materials, in case you do ever need to send the unit back in for service or repairs. I recommend buying a wet/dry scanner cleaning kit.
Images in this review
Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image

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