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White rectangular desktop laser printer with paper tray and control panel

Lexmark

Lexmark MS431dn 29ST003 laser printer 42 ppm 350 sheets 600 x 600 dpi

SKU CH-43MB-3V36Q MPN 29ST003

Monochrome laser printer prints up to 42 ppm with automatic duplex and 350-sheet capacity

  • Prints up to 42 pages per minute for fast output
  • Automatic duplex printing saves paper on every job
  • 350-sheet input capacity reduces reload frequency
  • Gigabit Ethernet enables reliable wired network sharing
  • TAA compliant for government procurement eligibility

Monochrome laser printer for small offices

The Lexmark MS431dn is a desktop laser printer built for monochrome output at up to 42 ppm. It holds 350 sheets of A4 or Legal paper and prints at 600 x 600 dpi with automatic duplexing. A duty cycle of 80000 pages supports regular business workloads. TAA compliance makes it suitable for government procurement.

Connectivity and space check

Verify that your desk accommodates a desktop-class unit and that a Gigabit Ethernet port is available for wired network printing. A USB interface is also provided for direct local connection. The printer requires a standard mains supply; confirm voltage compatibility for your region before ordering.

Replaces slower single-sided units

This model upgrades from printers that lack automatic duplexing or run below 42 ppm, cutting paper use and wait times for multi-page reports. The jump is worth it when your team prints enough volume to benefit from the 80000-page duty cycle and network sharing. It is not for buyers who need colour output or higher paper capacity.

How it compares

Measured against everything we stock in Monochrome & Color Laser Printers, at today’s prices. Recalculated every night.

Price $310.99
Cheaper than about 72% of the 2,183 comparable items (median $485.99).

Specifications

Product
Brand nameLexmark
Size & build
Shipping weight10.89 kg
Package size432 × 381 × 381 mm

Questions about this item

What comes in the box with the Lexmark MS431dn 29ST003 and what must be purchased separately?

The printer ships with a starter toner cartridge, power cord and USB cable; a full-yield toner cartridge and any extra paper trays are sold separately.

How do I choose between the 350-sheet and 80000-page figures when deciding if this printer fits my volume?

The 350-sheet input capacity sets how many pages you can load at once, while the 80000-page monthly duty cycle indicates the maximum sustainable output for the device.

What does the 42 ppm rating mean when the MS431dn is printing duplex on A4 paper?

The 42 pages per minute speed applies to simplex printing; duplex output will be slower because each sheet must pass through the engine twice.

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