LEXMARK MS431DW A4 MONO LASER PRINTER
The Lexmark MS431dw Monochrome Laser Printer is a compact, fast, and energy-efficient printer designed for small to mid-sized workspaces. With print speeds of up to 42 pages per minute and a first page out in just 5.9 seconds, it’s built to handle demanding workloads while saving space.
This wireless monochrome laser printer offers flexible connectivity options including USB, Ethernet, and built-in Wi-Fi, making mobile printing easy with support for Lexmark Mobile Print, AirPrint, Mopria, and Google Cloud Print. You can also streamline wireless setup using the Lexmark Mobile Assistant app.
Thanks to automatic two-sided printing and built-in energy-saving modes, it’s both eco-friendly and cost-effective—earning EPEAT Silver and ENERGY STAR certifications. Plus, Lexmark’s Cartridge and Equipment Collection Programs help reduce waste and support recycling.
Despite its powerful performance, the MS431dw is incredibly space-efficient, measuring just 222 mm tall and under 37 cm wide and deep. With optional upgrades like a 550-sheet paper tray and Extra High Yield toner (up to 20,000 pages), you’ll spend less time refilling and more time printing.
Add in enterprise-level security features, and the Lexmark MS431dw becomes a reliable and secure choice for high-volume, professional black-and-white printing.
Product Type: Monochrome Laser Printer
Workgroup Size: Small Workgroup
Model Number: 29S0134 (OEM)
Print Performance
Print Speed (Black, Letter): Up to 42 ppm
Duplex Print Speed: Up to 18 spm (Letter)
Time to First Page (Black): As fast as 5.9 seconds
Print Resolution: 2400 IQ (2400 x 600 dpi), 600 x 600 dpi
Duplex Printing: Integrated Duplex (Automatic Two-sided)
Paper Handling
Standard Input Capacity: 350 sheets (250-sheet tray + 100-sheet multipurpose feeder)
Maximum Input Capacity: 900 sheets (with optional 550-sheet tray)
Output Capacity: 150 sheets
Supported Media Sizes: 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
Media Types Supported: Plain Paper, Card Stock, Envelopes, Labels (per specialty media guide)
Cartridge and Imaging
Standard Toner Yield: 3,000 pages (Return Program Cartridge)
High Yield Toner: 15,000 pages
Extra High Yield Toner: 20,000 pages
Imaging Unit Yield: Up to 40,000 pages (based on 5% coverage)
Hardware Specifications
Processor: Dual-core 1.0 GHz
Memory: 256 MB (Standard and Maximum)
Display: 2-line APA monochrome LCD
Printer Languages: PCL 5c, PCL 5e, PCL 6, PostScript 3, Direct Image
Fonts: 89 scalable PCL/PostScript fonts, OCR-A, OCR-B, bitmap fonts
Connectivity
USB 2.0 Type B
Ethernet 10/100BaseTX (RJ-45)
Built-in Wi-Fi (Supports 2.4 GHz & 5 GHz)
Mobile Printing Support: Lexmark Mobile Print, AirPrint, Mopria, Google Cloud Print
Network Protocols: TCP/IP IPv4 & IPv6, IPSEC, SNMPv3, 802.1x, HTTPs (SSL/TLS), DHCP, BOOTP, RARP, mDNS, IGMP, WINS, DDNS, Telnet, NTP, ICMP, SMTP
Operating Systems Supported
Windows 7, 8, 8.1, 10 (32 & 64 bit)
macOS (via AirPrint)
Linux Distributions: Debian, Ubuntu, openSUSE, SUSE Enterprise, Red Hat, Fedora
Citrix XenApp and Novell Open Enterprise Server Compatible
Environmental and Energy
ENERGY STAR Certified
EPEAT Silver Rated
Typical Electricity Consumption: 0.47 kWh/week
Noise Levels: Idle 14 dBA, Printing 53 dBA, Duplex 50 dBA
Operating Temperature: 10°C to 32°C
Operating Humidity: 8% to 80% RH
Operating Altitude: 0 to 2896 meters
Physical Dimensions & Weight
Dimensions (H x W x D): 220.98 x 368.3 x 363.22 mm
Weight: 9.34 kg
Warranty
1-Year Advanced Exchange, Next Business Day Support