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Rectangular white office laser printer with front control panel and paper tray

Lexmark

Lexmark MS331DN Monochrome Laser Printer 38 ppm Ethernet USB

SKU CH-9D3X-19P9N MPN MS331DN

Monochrome laser printer printing 38 ppm A4 with automatic duplex, 350-sheet input, Ethernet and USB 2.0 connectivity

  • Power draw0.1 W (Hibernate Mode) 0.9 W (Sleep Mode) 5.5 W (Ready Mode)
  • Display type2-line All Points Addressable (APA) monochrome LCD display
  • Printing typeMonochrome
  • Print technologyLaser
  • Monochrome print speedBlack: 38 ppm (A4) Black: 40 ppm (Letter)
  • Monochrome print resolution600 × 600 dpi
  • Fast 38 ppm A4 mono printing for high-volume tasks
  • Crisp 600 x 600 dpi output for sharp text and graphics
  • Built-in duplex cuts paper use and speeds double-sided jobs
  • Ethernet 10/100BaseTX plus USB 2.0 for flexible network or local connection
  • 50,000-page monthly duty cycle handles demanding workloads

Monochrome laser printer for small workgroups

The Lexmark MS331DN is a monochrome laser printer built for small workgroups that need fast, reliable black-and-white output. It prints up to 38 ppm on A4 and 40 ppm on Letter, with a first page out in 6.2 seconds. A 2-line APA monochrome LCD display provides basic status and menu navigation. Standard connectivity includes USB 2.0 Type B and Ethernet 10/100BaseTX (RJ-45) for wired network integration.

Suited for wired offices.

This printer suits offices that rely on a wired Ethernet connection and do not require Wi-Fi or mobile printing protocols. It handles plain paper, envelopes, labels and card stock with a standard input of 350 pages and a maximum of 900 pages. Automatic duplex printing is included. Buyers who need wireless connectivity, colour output, or higher monthly volume than 50,000 pages should look at other models.

38 ppm A4 print speed defines throughput

The single specification that decides fit is the 38 ppm A4 black print speed, which sets the pace for daily document production. Supported by 600 x 600 dpi resolution and 256 MB of standard memory, it processes PCL 5c, PCL 6, PostScript 3 and PDF 1.7 emulation. The 50,000-page monthly duty cycle marks the upper limit for sustained use.

How it compares

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

Price $151.99
Cheaper than about 92% of the 2,183 comparable items (median $485.99).

Specifications

Product
Brand nameLexmark
Model nameMS331DN
Printing typeMonochrome
Print technologyLaser
Performance
Monochrome print speedBlack: 38 ppm (A4)
Black: 40 ppm (Letter)
Monochrome print resolution600 × 600 dpi
First page out time6.2 seconds
Two-sided printingYes
Monthly duty cycleUp to 50,000 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 interfaceEthernet 10/100BaseTX (RJ-45)
Power
Power draw0.1 W (Hibernate Mode)
0.9 W (Sleep Mode)
5.5 W (Ready Mode)
550 W (Printing)
Size & build
Product dimensions8.74 in × 14.49 in × 14.29 in
Product weight20.5 lb (9.3 kg)
Shipping weight10.52 kg
Package size420 × 410 × 280 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 Server 2019, Windows 10, Windows 8.1, Windows 8, Windows 7 x64, Windows Server 2016, Windows 8.1 x64, Windows 7
Environment & compliance
Noise level (approx.)Operating:
14 dBA (Idle)
53 dBA (Print)
Duplex Print Noise Level
Operating:
50 dBA
More details
Print languages, std.PCL 5c Emulation, PCL 5e Emulation, PCL 6 Emulation, Personal Printer Data Stream (PPDS), PostScript 3 Emulation, PDF 1.7 emulation, Direct Image
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

What cables and toner are included with the Lexmark MS331DN, and what must I buy separately?

The box contains the printer, a starter toner cartridge and a power cord. A USB 2.0 Type B cable or an Ethernet cable for the RJ‑45 port must be purchased separately.

Which paper capacity configuration should I choose for the MS331DN?

The standard tray holds 350 sheets of 75 gsm paper. If you regularly print larger batches, add the optional tray to reach the 900‑sheet maximum.

What does the 38 ppm A4 speed mean for everyday printing on the MS331DN?

It delivers up to 38 single‑sided A4 pages per minute after a 6.2‑second first page, with automatic duplex available for double‑sided jobs.

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