Product comparison · 2 scanners

Brother DS-940DWE scanner Sheet-fed scanner vs Epson Perfection V39II

33specifications compared
23differ
10identical
52known for one product only

Key differences

The Brother DS-940DWE scanner Sheet-fed scanner has 0.097 W more power consumption (off) than the Epson Perfection V39II (0.11 W vs 0.013 W). The Brother DS-940DWE scanner Sheet-fed scanner has 70 mm more width than the Epson Perfection V39II (319 mm vs 249 mm). The Epson Perfection V39II has 318.6 mm more depth than the Brother DS-940DWE scanner Sheet-fed scanner (364 mm vs 45.4 mm). Only the Brother DS-940DWE scanner Sheet-fed scanner has duplex scanning. Only the Brother DS-940DWE scanner Sheet-fed scanner has built-in display.

Optical scanning resolution
- DS-940DWE scanner Sheet-fed scanner:600 x 600 DPI
- Perfection V39II:4800 x 4800 DPI
Duplex scanning
- DS-940DWE scanner Sheet-fed scanner:Yes
- Perfection V39II:No
Scanner type
- DS-940DWE scanner Sheet-fed scanner:Sheet-fed scanner
- Perfection V39II:Flatbed scanner
Built-in display
- DS-940DWE scanner Sheet-fed scanner:Yes
- Perfection V39II:No
Product colour
- DS-940DWE scanner Sheet-fed scanner:White
- Perfection V39II:Black
Sensor type
- DS-940DWE scanner Sheet-fed scanner:Dual CIS
- Perfection V39II:CIS
Scan drivers
- DS-940DWE scanner Sheet-fed scanner:TWAIN, WIA
- Perfection V39II:TWAIN, ICA
USB version
- DS-940DWE scanner Sheet-fed scanner:3.2 Gen 1 (3.1 Gen 1)
- Perfection V39II:2.0

Side by side

Differences highlightedShow differences only

Comparison of DS-940DWE, V39II
85 specifications	A Brother DS-940DWE scanner Sheet-fed scanner Model DS-940DWE View product	B Epson Perfection V39II Model V39II View product
Scanning2 differ
Maximum scan sizeKnown for one	Unknown — not stated by the source	216 x 297 mm
Optical scanning resolutionDiffers	600 x 600 DPI	4800 x 4800 DPI
Colour scanning	Yes	Yes
Duplex scanningDiffers	Yes	No
Input colour depth	48 bit	48 bit
Output colour depth	24 bit	24 bit
Movement resolutionKnown for one	Unknown — not stated by the source	4800 DPI
Output greyscale depthKnown for one	8 bit	Unknown — not stated by the source
Greyscale levelsKnown for one	256	Unknown — not stated by the source
Scan speedKnown for one	4 sec/page	Unknown — not stated by the source
Design3 differ
Scanner typeDiffers	Sheet-fed scanner	Flatbed scanner
Built-in displayDiffers	Yes	No
Product colourDiffers	White	Black
Control type	Buttons	Buttons
DisplayKnown for one	LED	Unknown — not stated by the source
Performance2 differ
Sensor typeDiffers	Dual CIS	CIS
Light sourceKnown for one	Unknown — not stated by the source	White LED
Scan file formatsKnown for one	Unknown — not stated by the source	BMP, JPEG, PDF, TIFF
Image quality improvementKnown for one	Unknown — not stated by the source	Backlight correction, Colour restoration, Dust removal
Button functionsKnown for one	Unknown — not stated by the source	Copy, On, Scan to PDF
Scan driversDiffers	TWAIN, WIA	TWAIN, ICA
Scanning noise levelKnown for one	Unknown — not stated by the source	43 dB
Daily duty cycle (max)Known for one	100 pages	Unknown — not stated by the source
Maximum duty cycleKnown for one	2000 pages per month	Unknown — not stated by the source
Scan toKnown for one	PC, Memory card, E-mail	Unknown — not stated by the source
Sound pressure level (max)Known for one	53 dB	Unknown — not stated by the source
Compatible memory cardsKnown for one	SD, MicroSD (TransFlash)	Unknown — not stated by the source
Paper handlingidentical
Maximum ISO A-series paper size	A4	A4
ISO A-series sizes (A0...A9)Known for one	Unknown — not stated by the source	A4, A5, A6, A7
LegalKnown for one	Unknown — not stated by the source	Yes
LetterKnown for one	Unknown — not stated by the source	Yes
Scanning media types supportedKnown for one	Plastic Card, Plain paper, Business Card, Photo paper	Unknown — not stated by the source
Card thickness (max)Known for one	1.24 mm	Unknown — not stated by the source
Ports & interfaces1 differ
USB port	Yes	Yes
USB versionDiffers	3.2 Gen 1 (3.1 Gen 1)	2.0
USB connector typeKnown for one	USB Type-C	Unknown — not stated by the source
Power2 differ
Power consumption (typical)Known for one	Unknown — not stated by the source	2.5 W
Power supply typeDiffers	USB/Battery	USB
Power consumption (off)Differs	0.11 W	0.013 W
Power consumption (standby)Known for one	2.3 W	Unknown — not stated by the source
Battery typeKnown for one	Built-in battery	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	319 mm	249 mm
DepthDiffers	45.4 mm	364 mm
HeightDiffers	63.1 mm	39 mm
WeightDiffers	699 g	1.5 kg
Packaging data4 differ
Quantity per pack	1 pc(s)	1 pc(s)
Package widthDiffers	377 mm	90 mm
Package depthDiffers	162 mm	440 mm
Package heightDiffers	76 mm	310 mm
Package weightDiffers	1.07 kg	1.88 kg
Packaging content1 differ
Cables included	USB	USB
Bundled softwareDiffers	Windows Software(Brother iPrint&Scan, Kofax Power PDF Standard v5, Remote Setup), Macintosh Software(Brother iPrint&Scan Desktop, Remote Setup)	Epson Copy Utility, Epson Document Capture (Mac only), Epson Document Capture Pro (Windows only), Epson Easy Photo Scan, Epson ScanSmart
Batteries includedKnown for one	No	Unknown — not stated by the source
Packaging contentKnown for one	USB cable, Quick setup guide, Product safety guide, Warranty, Device	Unknown — not stated by the source
System requirements2 differ
Compatible operating systemsKnown for one	Unknown — not stated by the source	Mac OS 10.7.x, Mac OS 10.8.x, Mac OS 10.9.x, Mac OS X 10.6.8, Windows 10, Windows 11 or later, Windows 7, Windows 8, Windows 8.1, Windows Vista, Windows XP SP2 or higher
Mac operating systems supportedDiffers	Mac OS 26 Tahoe, Mac OS X 15.0 Sequoia, Mac OS X 14.0 Sonoma	Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.7.5 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Windows operating systems supportedDiffers	Windows 10, Windows 11	Windows 10, Windows 7, Windows 8, Windows 8.1, Windows Vista, Windows XP
Mobile operating systems supportedKnown for one	Android, iOS, iPadOS	Unknown — not stated by the source
Server operating systems supportedKnown for one	Windows Server 2016, Windows Server 2019, Windows Server 2022, Windows Server 2025	Unknown — not stated by the source
Operational conditions2 differ
Operating temperature (T-T)Differs	5 - 35 °C	10 - 35 °C
Storage temperature (T-T)	-20 - 60 °C	-20 - 60 °C
Operating relative humidity (H-H)	20 - 80%	20 - 80%
Storage relative humidity (H-H)Differs	10 - 90%	20 - 85%
Other featuresidentical
Image formats supportedKnown for one	Unknown — not stated by the source	BMP, JPEG, TIFF, MTIFF
InterfaceKnown for one	Unknown — not stated by the source	USB 2.0 Micro-AB
Box contentsKnown for one	Unknown — not stated by the source	Main unit, Setup guide, USB cable, Warranty document
Output resolutionsKnown for one	Unknown — not stated by the source	50~6400 (1 dpi step) DPI
Printer featuresKnown for one	Unknown — not stated by the source	RGB colour dropout, Automatic area segmentation, Text enhancement, Scan to Selected Photo Sharing Websites, 4 push buttons (PDF, Send, Copy, Start), Integrated stand for upright scanning
Scanner featuresKnown for one	Unknown — not stated by the source	RGB colour dropout, Automatic area segmentation, Text enhancement, Scan to Selected Photo Sharing Websites, 4 push buttons (PDF, Send, Copy, Start), Integrated stand for upright scanning
Technical detailsidentical
Data compressionKnown for one	Unknown — not stated by the source	TIFF Compression (JPEG(7) , CITT G4, LZW), PDF Compression, JPEG compression
Logistics dataidentical
Products per palletKnown for one	Unknown — not stated by the source	126 pc(s)
Country of originKnown for one	Unknown — not stated by the source	Indonesia
Pallet gross heightKnown for one	Unknown — not stated by the source	2.01 m
Pallet gross lengthKnown for one	Unknown — not stated by the source	120 cm
Pallet gross widthKnown for one	Unknown — not stated by the source	80 cm
Pallet height (UK)Known for one	Unknown — not stated by the source	2.01 m
Pallet length (UK)Known for one	Unknown — not stated by the source	120 cm
Products per pallet (UK)Known for one	Unknown — not stated by the source	168 pc(s)
Products per pallet layerKnown for one	Unknown — not stated by the source	21 pc(s)
Products per pallet layer (UK)Known for one	Unknown — not stated by the source	28 pc(s)
Networkidentical
Wi-FiKnown for one	Yes	Unknown — not stated by the source
Wi-Fi standardsKnown for one	802.11b, 802.11g, Wi-Fi 4 (802.11n)	Unknown — not stated by the source
Security algorithmsKnown for one	SSL/TLS, 64-bit WEP, 128-bit WEP, WPA-PSK, WPA2-PSK, TKIP, AES	Unknown — not stated by the source
Wi-Fi DirectKnown for one	Yes	Unknown — not stated by the source
Batteryidentical
Battery technologyKnown for one	Lithium	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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