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White rectangular laser printer with two-line LCD display and paper trays

Lexmark

Lexmark MS431dn 29S0050 42 ppm mono laser printer

SKU CH-X6D2-4MAEB MPN 29S0050

Monochrome laser printer prints up to 42 ppm with automatic duplexing and 350-sheet standard input

  • Best suited forSmall Workgroup
  • Display type2-line All Points Addressable (APA) monochrome LCD display
  • Printing typeMonochrome
  • Print technologyLaser
  • Monochrome print speedUp to 42 ppm
  • Monochrome print resolution2400 IQ (2400 × 600 dpi), 600 × 600 dpi
  • Fast first page in 5.9 seconds for quick document turnaround
  • Up to 42 ppm mono output keeps workgroups productive
  • Automatic duplex printing cuts paper use and cost
  • 350-sheet standard input with optional 550-sheet tray expands to 900 pages
  • Gigabit Ethernet and USB connect the whole team reliably

Compact mono laser for small workgroups

The Lexmark MS431dn is a new monochrome laser printer built for small workgroups that need fast, reliable output. It prints up to 42 ppm with a first page out in 5.9 seconds and a maximum duty cycle of 80,000 pages per month. A 256 MB memory and 1 GHz dual-core processor handle the print queue.

Fits tight spaces and grows with paper needs

At 8.7 inches high by 14.5 inches wide by 14.3 inches deep the unit sits on a desk or shelf without dominating the area. Standard input holds 350 sheets across two trays and an optional 550-sheet tray raises total capacity to 900 sheets. Duplex printing is built in and the 150-sheet output bin keeps pages stacked neatly.

Steady throughput on long print runs

The 2400 IQ engine delivers 2400 x 600 dpi quality without slowing down during extended jobs. Gigabit Ethernet plus USB give the whole team wired access and the printer supports PCL 5c, PCL 5e, PCL 6, PostScript 3 and Direct Image languages. Extra High Yield Unison toner cartridges yield up to 20,000 pages so toner changes stay infrequent.

How it compares

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

Price $274.99
Cheaper than about 77% of the 2,183 comparable items (median $485.99).

Specifications

Product
Brand nameLexmark
Model nameMS431dn
Part number29S0050
Printing typeMonochrome
Print technologyLaser
Performance
Monochrome print speedUp to 42 ppm
Monochrome print resolution2400 IQ (2400 × 600 dpi), 600 × 600 dpi
First page out time5.9 seconds
Two-sided printingYes
Monthly duty cycleUp to 80,000 pages monthly
Maximum paper output150 pages 20 lb or 75 gsm bond
Processor
CPU clock speedDual Core, 1.0 GHz
Memory
Standard memory256 MB
Maximum memory256 MB
Display
Display type2-line All Points Addressable (APA) monochrome LCD display
Connectivity
Connection interfaceEthernet (RJ-45) / USB
Ports & slots
USB connectionsUSB Compatible with USB 2.0 Specification (Type B)
Network interfaceGigabit Ethernet (10/100/1000)
Size & build
Product dimensions8.7 in × 14.5 in × 14.3 in
Product weight20.6 lb (9.34 kg)
Shipping weight10.52 kg
Package size432 × 419 × 292 mm
Compatibility
Accepted media sizesA6, 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
OS compatibilityWindows 10, Windows 8.1, Windows 8, Windows 7 x64, Windows 8.1 x64, Windows 7
Environment & compliance
Noise level (approx.)14 dBA (Idle)
53 dBA (Print)
More details
Best suited forSmall Workgroup
Print languages, std.PCL 5c Emulation, PCL 5e Emulation, PCL 6 Emulation, PostScript 3 Emulation, Direct Image
Paper trays, std.2
Paper trays, max.3
Standard paper capacity350 pages 20 lb or 75 gsm bond
Max input capacity900 pages 20 lb or 75 gsm bond
Standard output capacity150 pages 20 lb or 75 gsm bond
Media formatPaper Labels, Card Stock, Plain Paper, Envelopes, Refer to the Paper & Specialty Media Guide

Questions about this item

Will the 80,000-page monthly duty cycle handle our heaviest printing months?

The printer is rated for up to 80,000 pages per month, so it can sustain very high volumes without exceeding its design limit.

How much noise and heat does it produce when running continuously at 42 ppm?

With a 1 GHz dual-core processor and 256 MB memory driving speeds up to 42 ppm, the MS431dn is built for steady, business-class operation throughout the day.

Does the 29S0050 come with a toner cartridge, or do I need to buy one separately?

The printer ships with a starter toner cartridge; Extra High Yield Unison toner cartridges rated for up to 20,000 pages are available for longer runs.

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