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Office printersENERGY STAR certified

Lexmark MS431dw

42 ppm mono printer.

Speed

42

pages a minute

Color

Mono

Laser / LED

Electricity a year

$3.04

23.4 kWh at 13¢/kWh

Duplex

Yes

automatic two-sided

At 42 pages a minute, the MS431dw is faster than 123 of the 305 office printers certified, and 157 are faster.

Its certified typical electricity use of 23.4 kWh a year is 7% below the median of 66 monochrome office printers within 20% of its speed (25.2 kWh). Electricity is a small part of what a printer costs to run; toner or ink per page is usually the larger one.

Maker
Lexmark
Model
MS431dw
ENERGY STAR type
Printers
Marking technology
Laser / LED
Color
Monochrome
Speed
42 pages a minute
Size format
Standard
Automatic duplex
Yes
Typical electricity use
23.4 kWh a year (TEC method)
Default delay to sleep
15 min
On the market since
Apr 2020
ENERGY STAR certified
7 Oct 2019

Certified under the same record

The maker lists these as the same machine or a variant of it: B3442dw, same as tested model, intended for Open Market, M1342, Same as tested model, sold in BSD Market, MS431dn, same as tested model except no wireless, 1Gb Ethernet instead of 10/100Mb.

Source: ENERGY STAR certified imaging equipment dataset, US EPA, record 2349204, data build 2026-09-29. Figures are as the maker certified them. How we use this data.

Other makers

Machines comparable to the MS431dw

Certified office printers from other makers, same color class, within 20% of its speed.

ModelTypeSpeedkWh / yrCertified
Konica Minolta bizhub 4000iMono, Laser / LED42 ppm29Aug 2019
Brother HL-L5000DMono, Laser / LED42 ppm27Aug 2019
Kyocera P2040dwMono, Laser / LED42 ppm25Jul 2016
HP Laser 408dnMono, Laser / LED42 ppm31Dec 2019
Pantum BP5100DNMono, Laser / LED42 ppm28Nov 2020
Sharp MX-B427PWMono, Laser / LED42 ppm23Aug 2020

Lexmark

More Lexmark office printers

ModelTypeSpeedkWh / yrCertified
B3340dwMono, Laser / LED40 ppm23Oct 2019
C3224dwColor, Laser / LED24 ppm14May 2019
CS331dwColor, Laser / LED26 ppm15May 2019
CS431dwColor, Laser / LED26 ppm18Dec 2019
CS531dwColor, Laser / LED35 ppm24Dec 2022
CS622deColor, Laser / LED40 ppm29Sep 2019
CS632dweColor, Laser / LED42 ppm27Dec 2022
CS720dteColor, Laser / LED40 ppm38Aug 2019

All Lexmark office printers