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Product comparison · 2 multifunction printers

Epson EcoTank ET-4951 vs Epson WorkForce Pro WF-4920 Inkjet A4

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  • 32specifications compared
  • 16differ
  • 16identical
  • 80known for one product only

Key differences

  • Maximum duty cycle
    • 1600 pages per month
    • 1700 pages per month
  • Printing colours
    • Yellow, Magenta, Cyan, Black
    • Black, Cyan, Magenta, Yellow
  • Total output capacity
    • 30 sheets
    • 80 sheets
  • Auto document feeder (ADF) input capacity
    • 30 sheets
    • 35 sheets
  • ISO B-series sizes (B0...B9)
    • B6, B5
    • B5
  • Envelopes sizes
    • 10, DL, C6
    • DL, 10
  • Photo paper sizes
    • 10x15,13x18 cm
    • 13x18 cm
  • Display diagonal
    • 6.1 cm (2.4")
    • 10.9 cm (4.29")

Side by side

Differences highlightedShow differences only
112 specifications
A

Epson

EcoTank ET-4951

Model C11CL40408CA

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B

Epson

WorkForce Pro WF-4920 Inkjet A4

Model WF-4920

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Printingidentical
Duplex printing modeKnown for oneAuto
Print speed (ISO/IEC 24734) blackKnown for one18 ppm
Print speed (ISO/IEC 24734) colourKnown for one9 ppm
Duplex print speed (ISO/IEC 24734, A4) blackKnown for one7 ppm
Duplex print speed (ISO/IEC 24734, A4) colourKnown for one5 ppm
Time to first page (black, normal)Known for one8.5 s
Time to first page (colour, normal)Known for one13.5 s
Borderless printingKnown for oneYes
Print technologyKnown for oneInkjet
PrintingKnown for oneColour printing
Print speed (black, normal quality, A4/US Letter)Known for one25 ppm
Print speed (colour, normal quality, A4/US Letter)Known for one12 ppm
Duplex print speed (black, normal quality, A4/US Letter)Known for one16 ppm
Duplex print speed (colour, normal quality, A4/US Letter)Known for one9 ppm
Copyingidentical
Copy speedKnown for oneUp to12 ipm Black, Up to5 ipm Colour; *Simplex ADF 600 x 600 dpi (ISO/ IEC 24735)
CopyingKnown for oneColour copying
Scanningidentical
Image formats supportedKnown for oneBMP, JPEG, PICT, TIFF, MTIFF, PNG
Document formats supportedKnown for onePDF
Duplex scan speed (A4/Letter, black): up toKnown for one3.5 ppm
Duplex scan speed (A4/Letter, colour): up toKnown for one3.5 ppm
Scan speed (black, normal quality)Known for one5 ipm with ADF scan 9 sec. with flatbed scan
Scan speed (colour, normal quality)Known for one5 ipm with ADF scan 21 sec. with flatbed scan
ScanningKnown for oneColour scanning
Optical scanning resolution (ADF)Known for one600 x 600 DPI
Maximum scan areaKnown for one216 x 297 mm
Scanner typeKnown for oneFlatbed & ADF scanner
Scan toKnown for onePC, E-mail, Cloud
Faxidentical
FaxingKnown for oneColour faxing
Fax transmission speedKnown for one3 sec/page
Modem speedKnown for one33.6 Kbit/s
Fax memoryKnown for one100 pages
Auto-redialingKnown for oneYes
Fax speed dialing (max numbers)Known for one100
Fax forwarding toKnown for onePC
Features2 differ
Maximum duty cycleDiffers1600 pages per month1700 pages per month
Printing coloursDiffersYellow, Magenta, Cyan, BlackBlack, Cyan, Magenta, Yellow
Country of originKnown for onePhilippines
Recommended duty cycleKnown for one200 - 1700 pages per month
Duplex functionsKnown for oneScan, Print
Input & output capacity2 differ
Total output capacityDiffers30 sheets80 sheets
Auto document feeder (ADF) input capacityDiffers30 sheets35 sheets
Total number of input traysKnown for one1
Paper handling4 differ
Paper tray media typesDiffersPlain paper, EnvelopesEnvelopes, Letterhead, Photo paper
ISO B-series sizes (B0...B9)DiffersB6, B5B5
Non-ISO print media sizesKnown for oneLetter
Envelopes sizesDiffers10, DL, C6DL, 10
Photo paper sizesDiffers10x15,13x18 cm13x18 cm
Paper tray media weightKnown for one64 - 300 g/m²
Maximum ISO A-series paper sizeKnown for oneA4
ISO C-series sizes (C0...C9)Known for oneC6
Network2 differ
Security algorithmsDiffers64-bit WEP, 128-bit WEP, WPA2-PSK, WPA3-SAE64-bit WEP, 128-bit WEP, WPA2-PSK, WPA3-Enterprise
Mobile printing technologiesDiffersApple AirPrint, Epson Smart Panel, Epson Connect, Epson Email Print, Epson Remote Print, Epson Scan to CloudMopria Print Service, Apple AirPrint, Epson Connect, Epson Smart Panel
Wi-FiKnown for oneYes
Wi-Fi DirectKnown for oneYes
Wi-Fi standardsKnown for one802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Supported network protocols (IPv4)Known for oneTCP
Supported network protocols (IPv6)Known for oneTCP
Design1 differ
Display diagonalDiffers6.1 cm (2.4")10.9 cm (4.29")
DisplayKnown for oneLCD
Poweridentical
Power consumption (max)Known for one17 W
Power consumption (ready)Known for one7 W
Power consumption (sleep)Known for one0.7 W
Power consumption (off)Known for one0.1 W
Energy Star Typical Electricity Consumption (TEC)Known for one0.13 kWh/week
AC input frequencyKnown for one50/60 Hz
Weight & dimensions4 differ
WidthDiffers375 mm425 mm
DepthDiffers347 mm388 mm
HeightDiffers240 mm277 mm
WeightDiffers7.3 kg10.4 kg
Packaging dataidentical
Package widthKnown for one415 mm
Package depthKnown for one510 mm
Package heightKnown for one325 mm
Package weightKnown for one10.9 kg
Quantity per packKnown for one1 pc(s)
Technical detailsidentical
Safety warningKnown for oneContains 1,2-benzisothiazol-3(2H)-one. May produce an allergic reaction.<br>Contains 2,4,7,9-tetramethyldec-5-yne-4,7-diol. May produce an allergic reaction.<br>Always follow the information on the product label.
Box contentsKnown for one1 set of ink (1x 127ml BK, 3x 70ml CMY) + Extra Black, Main unit, Power cable, Quick Setup Guide, Warranty document
Colours capacityKnown for oneBlack [127ml], Cyan [70ml], Yellow [70ml], Magenta [70ml]
Other features1 differ
Standard input traysKnown for one250-sheet paper tray
Number of usersKnown for one4 user(s)
All-in-one functionsKnown for oneScan, Copy, Fax, Print
Compatible operating systemsKnown for oneMac OS X 10.9.5 or later, Windows 10 (32/64 bit), Windows 11, Windows 7 (32/64 bit), Windows 8 (32/64 bit), Windows 8.1 (32/64 bit), Windows Server 2008 (32/64bit), Windows Server 2008 R2, Windows Server 2012 (64bit), Windows Server 2012 R2, Windows Server 2016, Windows Server 2019, Windows Server 2
EmulationsKnown for oneESC/P-R
InterfaceKnown for oneUSB, Ethernet, Wi-Fi Direct, Wireless LAN IEEE 802.11a/b/g/n/ac(Wi-Fi 5)/k/v/r
Colour printing technologyKnown for onePigment black and Dye colour Inks
Ink dropKnown for one3.3 pl
Page yield high capacity (black & white)Known for one15,100 pages
Page yield high capacity (colour)Known for one5,500 pages
Print head nozzlesDiffers400 Nozzles Black, 128 Nozzles per Color800 Nozzles Black, 256 Nozzles per Color
Print speedKnown for one35 pages/min Monochrome (plain paper 75 g/m&sup2;), 23 pages/min Colour (plain paper 75 g/m&sup2;)
Noise levelKnown for one6.6 dB
Warranty periodKnown for one1 year(s)
Ports & interfacesidentical
Direct printingKnown for oneYes
USB portKnown for oneYes
System requirementsidentical
Windows operating systems supportedKnown for oneWindows 10, Windows 11, Windows 7, Windows 8
Mac operating systems supportedKnown for oneYes
Server operating systems supportedKnown for oneWindows Server 2012 R2, Windows Server 2008 R2, Windows Server 2019, Windows Server 2022, Windows Server 2025

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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