Product comparison · 2 multifunction printers

Brother MFC-7420 multifunction printer Laser A4 vs Brother MFC-7840W multifunction printer Laser A4

40specifications compared
18differ
22identical
39known for one product only

Key differences

Print speed (black, normal quality, A4/US Letter)
- MFC-7420 multifunction printer Laser A4:20 ppm
- MFC-7840W multifunction printer Laser A4:22 ppm
Copying
- MFC-7420 multifunction printer Laser A4:No
- MFC-7840W multifunction printer Laser A4:Mono copying
Maximum copy resolution
- MFC-7420 multifunction printer Laser A4:600 x 300 DPI
- MFC-7840W multifunction printer Laser A4:600 x 600 DPI
Copy speed (black, normal quality, A4)
- MFC-7420 multifunction printer Laser A4:20 cpm
- MFC-7840W multifunction printer Laser A4:22 cpm
Greyscale levels
- MFC-7420 multifunction printer Laser A4:64
- MFC-7840W multifunction printer Laser A4:256
Fax memory
- MFC-7420 multifunction printer Laser A4:400 pages
- MFC-7840W multifunction printer Laser A4:500 pages
Standard interfaces
- MFC-7420 multifunction printer Laser A4:Parallel, USB 2.0
- MFC-7840W multifunction printer Laser A4:USB 2.0
Internal memory
- MFC-7420 multifunction printer Laser A4:16 MB
- MFC-7840W multifunction printer Laser A4:32 MB

Side by side

Differences highlightedShow differences only

Comparison of MFC-7420, MFC-7840W
79 specifications	A Brother MFC-7420 multifunction printer Laser A4 Model MFC-7420 View product	B Brother MFC-7840W multifunction printer Laser A4 Model MFC-7840W View product
Printing1 differ
Print speed (black, normal quality, A4/US Letter)Differs	20 ppm	22 ppm
Warm-up timeKnown for one	Unknown — not stated by the source	18 s
Copying3 differ
CopyingDiffers	No	Mono copying
Maximum copy resolutionDiffers	600 x 300 DPI	600 x 600 DPI
Copy speed (black, normal quality, A4)Differs	20 cpm	22 cpm
Maximum number of copiesKnown for one	Unknown — not stated by the source	99 copies
Copier resizeKnown for one	Unknown — not stated by the source	25 - 400%
N-in-1 copy function (N=)Known for one	Unknown — not stated by the source	2, 4, 9, 16, 25
PC free copyingKnown for one	Unknown — not stated by the source	Yes
Scanning1 differ
Greyscale levelsDiffers	64	256
Optical scanning resolutionKnown for one	600 x 2400 DPI	Unknown — not stated by the source
Maximum scan resolutionKnown for one	9600 x 9600 DPI	Unknown — not stated by the source
Scanner typeKnown for one	Flatbed scanner	Unknown — not stated by the source
Fax1 differ
Fax memoryDiffers	400 pages	500 pages
Fax forwardingKnown for one	Unknown — not stated by the source	Yes
Error Correction Mode (ECM)Known for one	Unknown — not stated by the source	Yes
Fax coding methodsKnown for one	Unknown — not stated by the source	MH, MMR, MR
Modem speedKnown for one	14.4 Kbit/s	Unknown — not stated by the source
Fax speed (A4)Known for one	6 sec/page	Unknown — not stated by the source
Featuresidentical
Maximum duty cycleKnown for one	10000 pages per month	Unknown — not stated by the source
Input & output capacityidentical
Multi-Purpose trayKnown for one	Unknown — not stated by the source	Yes
Multi-Purpose tray input capacityKnown for one	Unknown — not stated by the source	1 sheets
Maximum input capacityKnown for one	Unknown — not stated by the source	250 sheets
Total input capacityKnown for one	250 sheets	Unknown — not stated by the source
Paper handlingidentical
ISO A-series sizes (A0...A9)Known for one	Unknown — not stated by the source	A4, A5, A6
ISO B-series sizes (B0...B9)Known for one	Unknown — not stated by the source	B5, B6
Multi-Purpose Tray media weightKnown for one	Unknown — not stated by the source	60 - 163 g/m²
Media weight (tray 1)Known for one	Unknown — not stated by the source	60 - 105 g/m²
Maximum print sizeKnown for one	210 x 297 mm	Unknown — not stated by the source
Ports & interfaces1 differ
Standard interfacesDiffers	Parallel, USB 2.0	USB 2.0
USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	1
Parallel ports quantityKnown for one	1	Unknown — not stated by the source
Networkidentical
Wi-FiKnown for one	Unknown — not stated by the source	Yes
Ethernet LANKnown for one	Unknown — not stated by the source	Yes
Supported network protocols (IPv4)Known for one	Unknown — not stated by the source	IPv4, IPv6
Performance1 differ
Internal memoryDiffers	16 MB	32 MB
Sound power level (standby)Known for one	Unknown — not stated by the source	32 dB
Poweridentical
Power consumption (average operating)Known for one	Unknown — not stated by the source	320 W
Power consumption (PowerSave)Known for one	Unknown — not stated by the source	12 W
Power consumption (standby)Known for one	Unknown — not stated by the source	75 W
Sustainabilityidentical
Sustainability certificatesKnown for one	Unknown — not stated by the source	ENERGY STAR
Weight & dimensions4 differ
WidthDiffers	490 mm	550 mm
DepthDiffers	491 mm	520 mm
HeightDiffers	540 mm	510 mm
WeightDiffers	11.7 kg	11.1 kg
Packaging data1 differ
Package weightDiffers	14.1 kg	14.9 kg
Other features5 differ
Networking featuresKnown for one	Unknown — not stated by the source	10/100 Base-TX Ethernet
Dimensions (WxDxH)Differs	432 x 395 x 294 mm	428 x 396 x 304 mm
All-in-one functionsDiffers	Fax, Scan	Copy, Fax, Scan
Compatible operating systemsDiffers	Windows 98/98SE/Me/2000/NT/XP Mac OS 9.1-9.2 + Mac OS X 10.2.4	Windows Vista/XP-Home/2003/2000 Mac OS X 10.2.4 & later Linux printer driver
EmulationsKnown for one	Unknown — not stated by the source	PCL6, BR-Script 3
Network readyDiffers	No	Yes
Wireless technologyKnown for one	Unknown — not stated by the source	IEEE802.11b/g
Package dimensions (WxDxH)Differs	550 x 495 x 500 mm	550 x 510 x 454 mm
Media types supportedKnown for one	Plain, Recycled, Envelopes, Transparency, Bond, Labels	Unknown — not stated by the source
Standard media sizesKnown for one	A4, LTR, EXE, A5, A6, B5, B6	Unknown — not stated by the source
Operational conditionsidentical
Operating relative humidity (H-H)Known for one	20 - 80%	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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