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Lexmark MS431dn Black & White Laser Printer
- Up to 42 ppm
- 2400 IQ (2400 x 600 dpi), 600 x 600 dpi Black Print Quality
- Gigabit Ethernet (10/100/1000)
- Up to 80,000 pages monthly
- 256 MB Memory, std.
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Overview
Specs
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Light, compact, and fast, the MS431dn supports output up to 42 pages per minute, multiple connectivity options, and an optional 550-sheet paper tray.
Output that fits
Measuring just 8.7 inches high x 14.5 inches wide x 14.3 inches deep (222 mm high x 368 mm wide x 363 mm deep), the business-class MS431dn fits almost anywhere. Its compact size and light weight make it easy to set up and easy to move.
Print more, stop less
In addition to a first page as fast as 5.9 seconds and output up to 42 pages per minute, available Extra High Yield Unison toner provides up to 20,000 pages of output. Add an optional paper tray that increases total input capacity up to 900 sheets for more printing and less downtime.
Solid performance, flexible connectivity
Get your first page as fast as 5.9 seconds, and power through challenging jobs with a 1 GHz dual-core processor and 256 MB of memory. Connect via USB or Ethernet to give your whole team access.
Full-spectrum security
Lexmark's comprehensive approach to product security is a design and engineering mandate across our entire product portfolio. Our security features help keep your information safe-in the document, on the device, over the network, and at all points in between.
Hands-off durability
With its steel frame and lifetime fuser, the MS431dn is built to last.
Save paper, save energy
Automatic two-sided printing is standard, along with built-in energy-saving modes that help support ratings of EPEAT Silver and ENERGY STAR certified. The Lexmark Cartridge Collection Program (LCCP) and Lexmark Equipment Collection Program (LECP) minimize waste and support recycling (availability varies by country).
Output that fits
Measuring just 8.7 inches high x 14.5 inches wide x 14.3 inches deep (222 mm high x 368 mm wide x 363 mm deep), the business-class MS431dn fits almost anywhere. Its compact size and light weight make it easy to set up and easy to move.
Print more, stop less
In addition to a first page as fast as 5.9 seconds and output up to 42 pages per minute, available Extra High Yield Unison toner provides up to 20,000 pages of output. Add an optional paper tray that increases total input capacity up to 900 sheets for more printing and less downtime.
Solid performance, flexible connectivity
Get your first page as fast as 5.9 seconds, and power through challenging jobs with a 1 GHz dual-core processor and 256 MB of memory. Connect via USB or Ethernet to give your whole team access.
Full-spectrum security
Lexmark's comprehensive approach to product security is a design and engineering mandate across our entire product portfolio. Our security features help keep your information safe-in the document, on the device, over the network, and at all points in between.
Hands-off durability
With its steel frame and lifetime fuser, the MS431dn is built to last.
Save paper, save energy
Automatic two-sided printing is standard, along with built-in energy-saving modes that help support ratings of EPEAT Silver and ENERGY STAR certified. The Lexmark Cartridge Collection Program (LCCP) and Lexmark Equipment Collection Program (LECP) minimize waste and support recycling (availability varies by country).
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 1 year
- Limited Warranty period (labor): 1 year
- Read full details
Return Policies
- Return for refund until: January 31, 2027
- Return for replacement until: January 31, 2027
- This item is covered by Newegg.com's Extended Holiday Return Policy.
- Read full return policy for details.
We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-800-539-6275
- Support Website
- View other products from Lexmark
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The Lexmark MS431dn is a monochrome laser printer for small workgroups that need fast, high-volume document printing, with speeds up to 42 pages per minute, automatic duplex printing, and an 80,000-page maximum monthly duty cycle.
Recommended For
- Small offices or workgroups that share a wired network printer for recurring black-and-white documents such as forms, reports, and invoices.
- Teams with steady document workloads that want fast monochrome output and automatic two-sided printing to reduce paper handling.
- Workplaces printing longer runs that value fewer toner changes; Lexmark offers high-yield and extra-high-yield cartridges for this model.
- Businesses that need a compact, desk-side office printer with Ethernet or USB connectivity rather than a wireless setup.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Small workgroups needing monochrome laser printing with automatic duplex and Ethernet or USB connectivity |
| Print Technology And Output | Monochrome laser printer using black toner; print-only function |
| Print Speed And Quality | Up to 42 pages per minute, with 2400 IQ (2400 x 600 dpi) or 600 x 600 dpi black print quality |
| Duplex And Print Languages | Automatic two-sided printing; supports PCL 5c, PCL 5e, PCL 6, PostScript 3, and Direct Image emulations |
| Paper Handling And Media | 2 standard paper trays, expandable to 3; input capacity of 350 sheets standard and 900 maximum, with 150-sheet output capacity. Supports paper, labels, card stock, and envelopes in sizes including Letter, Legal, A4, and A5 |
| Processor And Memory | Dual-core 1.0 GHz processor and 256 MB memory, not expandable |
| Connectivity | Gigabit Ethernet (10/100/1000) and USB 2.0 Type B; supports wired network and direct USB connections |
| Display | 2-line monochrome All Points Addressable LCD |
| Duty Cycle And First Page | Rated for up to 80,000 pages monthly; first page in 5.9 seconds |
| Operating System Compatibility | Compatible with Windows 7, Windows 8, Windows 8.1, and Windows 10, including listed x64 versions |
| Noise | Approximately 14 dBA at idle and 53 dBA while printing |
| Dimensions And Weight | 8.70 x 14.50 x 14.30 inches; 20.6 lb |
| Model Identifiers | Lexmark MS431dn; part number 29S0050 |
| Toner Compatibility | Compatible with Lexmark MS431DN toner cartridges |