From the manufacturer

Lexmark MS431dw Black and White Laser Printer

Lexmark MS431 Black and White Laser Printer

With output up to 42 pages per minute and a light, compact form factor, the Lexmark MS431dw provides fast, dependable performance in a package that fits almost anywhere. Connect via USB, Ethernet, or standard Wi-Fi and power through big jobs with a 1-GHz multi-core processor, 256 MB of memory and a 100-sheet multipurpose feeder. Available Extra High Yield Unison^™ toner prints up to 20,000 pages and optional 550-sheet paper tray supports longer print runs. A steel frame drives durability and long-life reliability, while standard two-sided printing saves paper, the lifetime fuser minimizes maintenance, and Lexmark full-spectrum security helps protect your network and proprietary information.

slide {0} of {1}, zoom in, Black and White Printer Laser 4-series

image showing page coming out of printer

automatic two-sided print, wireless, ethernet, durable steel frame, end-to-end security, mobile print, 250 page tray capacity + optional tray

In the box: set-up instructions, power cord, starter cartridge, info CD

Product dimensions: 8.7 (222mm) H, 14.3" (363 mm) D, 14.5" (368 mm) W

Security that's second to none. More banks, governments and schools trust Lexmark to protect their information.

Secure by design

Lexmark security features help protect your information on the device, over the network and at all points in between. That's why so many banks, governments and schools trust Lexmark security over all others in the industry.

Works better, lasts longer

Built for business and made to last with a sturdy steel frame and a compact size that fits almost anywhere.

Keeps you connected

Print and share from any device with standard Wi-Fi and full mobile support. Includes USB and ethernet connectivity. The Lexmark Mobile Assistant app simplifies wireless connection with your internet.

Increases your productivity

Fast print speed and standard two-sided printing.

Specifications

General Specs
Part #	29S0100
Print Technology	Monochrome Laser
Workgroup Size	Small Workgroup
Display	2-line All Points Addressable (APA) monochrome LCD display
Media Sizes Supported	A6, Oficio, 7 3/4 Envelope, 9 Envelope, JIS-B5, A4, Legal, A5, Letter, B5 Envelope, Statement, C5 Envelope, Executive, Universal, DL Envelope, Folio, 10 Envelope
Included Paper Handling	100-Sheet Multipurpose Feeder, Integrated Duplex, 150-Sheet Output Bin, 250-Sheet Input
Standard Ports	USB Compatible with USB 2.0 Specification (Type B), Ethernet 10/100BaseTX (RJ-45)
Size (in. - H x W x D)	8.7 x 14.5 x 14.3 in.
Weight (lb.)	20.6 lb.
Packaged Size (in. - H x W x D)	11.02 x 16.14 x 16.54 in.
Packaged Weight (lb.)	23.19 lb.
Printing
Print Speed	Up to: Black: 42 ppm (Letter)
Print Speed Duplex	Up to: Black: 18 spm (Letter)
Time to First Page	As fast as: Black: 5.9 seconds
Print Resolution	Black: 2400 IQ (2400 x 600 dpi), 600 x 600 dpi
Duplex	2-sided: Integrated Duplex
Printable Area	0.2 inches of the top, bottom, right and left edges (within)
Paper Handling
Media Types Supported	Paper Labels, Card Stock, Plain Paper, Envelopes, Refer to the Paper & Specialty Media Guide
Finishing Option	No
Number of Paper Inputs	Standard: 2 Maximum: 3
Paper Input Capacity	Standard: 350 pages 20 lb or 75 gsm bond Maximum: 900 pages 20 lb or 75 gsm bond 350 pages 20 lb or 75 gsm bond
Paper Output Capacity	Up to: Standard: 150 pages 20 lb or 75 gsm bond Maximum: 150 pages 20 lb or 75 gsm bond
Paper Weight Range Supported	lb.: 16 - 32 lb. (Standard Tray) 16 - 58 lb. (Multipurpose Feeder)
Optional Paper Handling	550-Sheet Lockable Tray, 550-Sheet Tray
Recommended Monthly Page Volume	800 - 8000 pages
Maximum Monthly Duty Cycle	Up to: 80000 pages per month
Cartridges & Imaging
Laser Cartridge Yields	up to: 3,000-page Cartridge 15,000-page High Yield Cartridge 20,000-page Black Extra High Yield Cartridge
Imaging Unit Estimated Yield	Up to: 40000 pages, based on 3 average letter/A4-size pages per print job and ~ 5% coverage
Cartridge(s) Shipping with Product	3,000-page Return Program Toner Cartridge
Replacement Cartridges:	Product functions only with replacement cartridges designed for use in a specific geographical region. See www.lexmark.com/regions for more details.
Hardware
Processor Speed	Dual Core, 1.0 GHz
Memory	Standard: 256 MB Maximum: 256 MB
Hard Disk	Not Available
Printer Languages	Standard: PCL 5c Emulation, PCL 5e Emulation, PCL 6 Emulation, PostScript 3 Emulation, Direct Image
Fonts and Symbol Sets	2 PCL bitmap fonts, OCR-A, OCR-B scalable PCL 5e fonts, For more information, refer to the Technical Reference., 89 scalable PostScript fonts, 3 of 9 scalable PCL 5e fonts in Narrow, Regular and Wide, 89 scalable PCL fonts
Touch Screen Display	No
Connectivity
Direct USB	No
Ethernet Network	Yes
Wireless	Yes
Network Protocol Support	TCP/IP IPv6, IPSEC w/ IPv4, IPSEC w/ IPv6, TCP/IP IPv4, ICMP, TCP, IGMP, UDP, 802.1x
Network Printing Methods	LPR/LPD, Microsoft Web Services WSD, FTP, TFTP, Enhanced IP (Port 9400), IPP 1.0, 1.1, 2.0 (Internet Printing Protocol)
Network Management Protocols	DHCP, BOOTP, RARP, mDNS, IGMP, WINS, DDNS, SNMPv3, SNMPv1, SNMPv2c, Telnet, NTP, ICMP, HTTP, DNS, ARP, HTTPs (SSL/TLS), SMTP, Finger
Network Security	SNMPv3, 802.1x Authentication: MD5, MSCHAPv2, LEAP, PEAP, TLS, TTLS
Supported Operating Systems
Microsoft Windows Operating Systems Supported	Windows 10, Windows 8.1, Windows 8, Windows 7 x64, Windows 8.1 x64, Windows 7
Apple Operating Systems Supported	Support is provided through AirPrint and AirScan only
Android Operating System Support	Support is provided through Mopria® Print Service and Mopria Scan.
Linux Operating Systems Supported	SUSE Linux Enterprise Server 12 SP4, SUSE Linux Enterprise Server 12 SP3, openSUSE Linux 15, SUSE Linux Enterprise Server 15, Debian 9.4, 9.5, 9.6, Debian GNU/Linux 8.11, Ubuntu 16.04, 18.04 LTS, openSUSE Linux 42.3, Red Hat Enterprise Linux WS 6.10, 7.5, 7.6, Fedora 27, 28, 29
Citrix MetaFrame	Microsoft Windows 2000 Server running Terminal Services with Citrix MetaFrame XP Presentation Server or Citrix MetaFrame Presentation Server 3.0., Microsoft Windows Server 2012 with Citrix XenApp 6.0, 6.5, Microsoft Windows 2000 Server running Terminal Services with Citrix MetaFrame Presentation Server 4.0, Microsoft Windows Server 2008 R2 with Citrix XenApp 6.0, 6.5, Microsoft Windows Server 2008 and 2008 X64 Edition with Citrix XenApp 5.0
Novell Operating Systems Supported	Novell Open Enterprise Server 2 (SP3) on SuSE Linux Enterprise Server 10 SP4 (x86 and x64) 3, Novell Open Enterprise Server 11 (SP3) on SuSE Linux Enterprise Server 11 SP4 (x86 and x64), Novell NetWare 6.5 Open Enterprise Server, Novell Open Enterprise Server 15 (SP1) on SuSE Linux Enterprise Server 11 SP4 (x86 and x64), Novell Open Enterprise Server 11 (SP3) on SuSE Linux Enterprise Server 12 SP1 (x86 and x64)
Electrical & Operation
ENERGY STAR	Yes
ENERGY STAR Typical Electricity Consumption	TEC: 0.47 kilowatt-hours per week
Noise Level	Operating: 14 dBA (Idle) 53 dBA (Print)
Duplex Print Noise Level	Operating: 50 dBA
Average Power	0.1 watts (Hibernate Mode) 0.9 watts (Sleep Mode) 4.9 watts (Ready Mode) 570 watts (Printing)
Specified Operating Environment	Humidity: 8 to 80% Relative Humidity Temperature: 10 to 32°C (50 to 90°F) Altitude: 0 - 2896 Meters (9,500 Feet)
Product Certifications	ENERGY STAR, ICES-003 Class B, BSMI Class B, US FDA, UL 60950-1, FCC Class B, cUL CAN/CSA-C22.2 60950-1, NOM, CB EN/IEC 60950-1, CB EN/IEC 60825-1, CE DoC (EN 62301 Class B, EN 62311, CE EN/IEC 60950-1, CE EN/IEC 60825-1, EN 61000-3, EN 55022 Class B, EuP, EN 55024, UL), EFTA (CE), KCC, CCC, CECP, CEL, C-tick DoC, UL-AR, KC mark, UL GS mark, EC 1275, MET-I, ISO 532B, ECMA-370, TED, GOST-R, SII, TER, DE-UZ 205, Wi-Fi CERTIFIED, China Green Product (CGP), Mopria Certified
UNSPSC Code	43212105
Harmonized Tariff Code	8443.32.1010
Country of Origin	US/Canada/LV LAD - Mexico, LA HV, AP & EMEA - PRC
License/Agreement Terms	Printers are sold subject to certain license/agreement conditions. See www.lexmark.com/printerlicense for details.
Warranties
Limited Warranty	See Statement of Limited Warranty: 1-Year Advanced Exchange, Next Business Day

Documents

Lexmark MS431dw Product Brochure

Lexmark Genuine Return Program Toner Cartridges

Some things work better together

Genuine Lexmark supplies paired with your Black and White Printer will give you sharp, laser quality printed documents, so you can print longer and change your printer cartridge less often. And when the time comes, the cartridges are easy to change and free to recycle through our award-winning cartridge collection program.

*Print and copy speeds measured in accordance with ISO/IEC 24734 and ISO/IEC 24735 respectively (ESAT).

**"Recommended Monthly Page Volume" is a range of pages that helps customers evaluate Lexmark’s product offerings based on the average number of pages customers plan to print on the device each month. Lexmark recommends that the number of pages per month be within the stated range for optimum device performance, based on factors including: supplies replacement intervals, paper loading intervals, speed, and typical customer usage.