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Product comparison · 2 multifunction printers

Epson WorkForce Pro EM-C8100 Inkjet A3 vs Epson EcoTank ET-2921 Inkjet A4

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  • 52specifications compared
  • 30differ
  • 22identical
  • 37known for one product only

Key differences

The Epson EcoTank ET-2921 Inkjet A4 has 4.5 s more time to first page (black, normal) than the Epson WorkForce Pro EM-C8100 Inkjet A3 (10 s vs 5.5 s). The Epson EcoTank ET-2921 Inkjet A4 has 10.5 s more time to first page (colour, normal) than the Epson WorkForce Pro EM-C8100 Inkjet A3 (16 s vs 5.5 s). The Epson WorkForce Pro EM-C8100 Inkjet A3 has 235 sheets more total input capacity than the Epson EcoTank ET-2921 Inkjet A4 (335 sheets vs 100 sheets). Only the Epson WorkForce Pro EM-C8100 Inkjet A3 has Ethernet LAN. Maximum resolution: 4800 x 1200 DPI on the Epson WorkForce Pro EM-C8100 Inkjet A3, 5760 x 1440 DPI on the Epson EcoTank ET-2921 Inkjet A4.

  • Maximum resolution
    • 4800 x 1200 DPI
    • 5760 x 1440 DPI
  • Time to first page (black, normal)
    • 5.5 s
    • 10 s
  • Time to first page (colour, normal)
    • 5.5 s
    • 16 s
  • Scanner type
    • ADF scanner
    • Flatbed scanner
  • Image formats supported
    • JPEG, TIFF
    • BMP, JPEG, TIFF, PNG
  • Faxing
    • Colour faxing
    • No
  • Duplex functions
    • Print, Scan
    • Print
  • Total input capacity
    • 335 sheets
    • 100 sheets

Side by side

Differences highlightedShow differences only
89 specifications
A

Epson

WorkForce Pro EM-C8100 Inkjet A3

Model EM-C8100

View product
B

Epson

EcoTank ET-2921 Inkjet A4

Model ET-2921

View product
Printing3 differ
Print technologyInkjetInkjet
PrintingColour printingColour printing
Duplex printingYesYes
Maximum resolutionDiffers4800 x 1200 DPI5760 x 1440 DPI
Print speed (ISO/IEC 24734) blackKnown for one25 ppm
Print speed (ISO/IEC 24734) colourKnown for one24 ppm
Time to first page (black, normal)Differs5.5 s10 s
Time to first page (colour, normal)Differs5.5 s16 s
Duplex printing modeKnown for oneManual
Print speed (black, normal quality, A4/US Letter)Known for one33 ppm
Print speed (colour, normal quality, A4/US Letter)Known for one27 ppm
Borderless printingKnown for oneYes
Copyingidentical
CopyingColour copyingColour copying
Maximum copy resolutionKnown for one600 x 600 DPI
Maximum copy sizeKnown for oneA3
Maximum number of copiesKnown for one999 copies
Copier resizeKnown for one25 - 400%
Scanning2 differ
ScanningColour scanningColour scanning
Duplex scanningKnown for oneYes
Optical scanning resolution1200 x 2400 DPI1200 x 2400 DPI
Scanner typeDiffersADF scannerFlatbed scanner
Scan technologyCISCIS
Scan toKnown for oneE-mail, FTP, Network folder, USB
Image formats supportedDiffersJPEG, TIFFBMP, JPEG, TIFF, PNG
Document formats supportedPDFPDF
Fax1 differ
FaxingDiffersColour faxingNo
Modem speedKnown for one33.3 Kbit/s
Fax memoryKnown for one550 pages
Auto-redialingKnown for oneYes
Speed diallingKnown for oneYes
Features1 differ
Maximum duty cycleKnown for one75000 pages per month
Recommended duty cycleKnown for one2000 - 10000 pages per month
Duplex functionsDiffersPrint, ScanPrint
Printing coloursBlack, Cyan, Magenta, YellowBlack, Cyan, Magenta, Yellow
Page description languagesKnown for oneESC/P-R, PCL 5c, PCL 5e, PCL 6, PDF 1.7, PostScript 3
Number of print cartridgesKnown for one4
Input & output capacity2 differ
Total number of input trays11
Total input capacityDiffers335 sheets100 sheets
Total output capacityDiffers250 sheets30 sheets
Multi-Purpose trayKnown for oneYes
Multi-Purpose tray input capacityKnown for one85 sheets
Auto document feeder (ADF)Known for oneYes
Auto document feeder (ADF) input capacityKnown for one50 sheets
Maximum input capacityKnown for one1835 sheets
Maximum output capacityKnown for one1835 sheets
Paper handling6 differ
Maximum ISO A-series paper sizeDiffersA3A4
Paper tray media typesDiffersLetterhead, Photo paper, Plain paper, Recycled paperEnvelopes
ISO A-series sizes (A0...A9)DiffersA3, A3+, A4, A5, A6A4, A5, A6
ISO B-series sizes (B0...B9)B5, B6B5, B6
Non-ISO print media sizesDiffersExecutive, Legal, LetterLegal, Letter
Envelopes sizesDiffers10, C4, C6, DL10, C6, DL
Photo paper sizesDiffers9x13,10x15,13x18,13x2010x15,13x18 cm
Paper tray media weight64 - 300 g/m²64 - 300 g/m²
Ports & interfacesidentical
Direct printingYesYes
USB portYesYes
Network3 differ
Wi-FiYesYes
Ethernet LANDiffersYesNo
Ethernet LAN data ratesKnown for one10,100,1000 Mbit/s
Wi-Fi DirectKnown for oneYes
Wi-Fi standardsDiffers802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)802.11b, 802.11g, Wi-Fi 4 (802.11n)
Security algorithmsDiffers64-bit WEP, 128-bit WEP, WPA-AES, WPA-PSK, WPA-TKIP, WPA2-AES, WPA2-Enterprise, WPA2-PSK, WPA3-SAE64-bit WEP, 128-bit WEP, WPA2-PSK, WPA2-AES, WPA3-SAE
Management protocolsKnown for oneSNMP, HTTP, DHCP, BOOTP, APIPA, DDNS, mDNS, SNTP, SLP, WSD, LLTD, Ping, IEEE 802.1X, SNMP 2.0c, SNMP 3.0, SNMP Trap
Mobile printing technologiesKnown for oneApple AirPrint, Mopria Print Service, Epson Connect
Performanceidentical
Internal memoryKnown for one3081 MB
Design2 differ
Product colourDiffersWhiteBlack
Market positioningDiffersWorkgroupHome & office
Built-in displayYesYes
Control typeKnown for oneTouch
Colour displayKnown for oneYes
DisplayKnown for oneLCD
Power3 differ
Power consumption (copying)Differs43 W12 W
Power consumption (ready)Differs20 W6 W
Power consumption (sleep)Known for one1 W
Power consumption (off)0.1 W0.1 W
Energy Star Typical Electricity Consumption (TEC)Differs0.16 kWh/week0.13 kWh/week
AC input frequency50/60 Hz50/60 Hz
AC input voltage100 - 240 V100 - 240 V
Power consumption (standby)Known for one0.5 W
System requirements3 differ
Windows operating systems supportedDiffersWindows 10, Windows 11, Windows 7, Windows 8, Windows 8.1Windows 11, Windows 10, Windows 7, Windows 8, Windows 8.1
Mac operating systems supportedDiffersMac OS X 10.10 Yosemite, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 CatalinaMac OS 12.4, Mac OS 13.1, Mac OS 14.5, Mac OS X 10.11 El Capitan, Mac OS X 10.10 Yosemite, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.9 Mavericks, Mac OS X 11.0 Big Sur, Mac OS X 12.0 Monterey, Mac OS X 13.0 Ventura, Mac OS X 14.0 S
Linux operating systems supportedKnown for oneYes
Server operating systems supportedDiffersWindows Server 2003, Windows Server 2008, Windows Server 2016, Windows Server 2019Windows Server 2008, Windows Server 2008 R2, Windows Server 2016, Windows Server 2019, Windows Server 2022, Windows Server 2025
Weight & dimensions4 differ
WidthDiffers621 mm361 mm
DepthDiffers650 mm317 mm
HeightDiffers641 mm162 mm
WeightDiffers60.4 kg4.2 kg
Packaging contentidentical
Cartridge(s) includedYesYes
Cables includedACAC
User guideYesYes

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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