Lexmark MS420 MS421dn Desktop Laser Printer Review: Specs, Pros and Cons

What stands out

• 1-ghz dual-core processor for fast job handling
• Up to 38 pages per minute print speed
• 350-sheet standard input expandable to 900 sheets
• Toner cartridge yields up to 20,000 pages

Who it fits

Key specs explained

Print Speed: Up to 38 [36] ppm

This printer produces up to 38 pages per minute for letter-size documents. You get 36 pages per minute for A4 paper. The 1-ghz dual-core processor handles these jobs efficiently. This speed suits busy offices where multiple users print daily. Compare this to slower entry-level models that may take longer to clear a queue.

Connectivity: Gigabit Ethernet, USB

You can connect this device via a wired network or a direct USB link. Gigabit Ethernet allows multiple computers on the same network to share the printer. USB provides a simple connection for a single computer. Wired connections offer more stability than wireless options for consistent office environments.

Toner System: Up to 20,000 pages

The replacement toner cartridge yields up to 20,000 pages. This high yield reduces the frequency of refills. You spend less time managing supplies and more time working. The long-life imaging unit further supports fewer service stops. This feature benefits high-volume users who want to minimize maintenance interruptions.

Paper Capacity: 350 to 900 sheets

The standard input holds 350 sheets of paper. You can expand this capacity to 900 sheets with additional trays. This flexibility supports larger print jobs without frequent reloading. It is ideal for departments that handle bulk printing tasks. Check if your specific model includes the extra trays or requires separate purchases.

Physical Design and Build Quality

The Lexmark MS421dn is a monochrome desktop laser printer designed for steady office output. According to the listing, the unit measures 10.2 x 15.7 x 14.7 inches in overall dimensions. The width is listed as 16.9 inches, the height as 14.8 inches, and the length as 18.5 inches. These specific measurements indicate a compact footprint suitable for standard desk setups or small office cubicles. You should verify your available space against these exact figures before placement.

The device weighs 34.9 pounds. This substantial mass suggests a stable internal construction that minimizes vibration during high-speed printing. The exterior finish is grey, a neutral color that blends into most professional environments. The model number 36S0200 identifies this specific hardware iteration. Its desktop classification means it is intended for direct user access rather than centralized room placement.

Connectivity options include Gigabit Ethernet and USB ports. These interfaces allow flexible connection to networks or individual computers. The standard input capacity holds 350 sheets of paper, with expansion options reaching 900 sheets. This layout supports continuous operation without frequent reloading. The physical design prioritizes durability and space efficiency for busy workstations.

Setup and Daily Use Guide

You connect this Lexmark MS421dn via Gigabit Ethernet or USB. These options let you link the printer to your network or a single computer. The dual-core processor manages these connections efficiently. You do not need to worry about slow data transfer during setup. The device is ready for monochrome laser printing once initialized. Daily operation relies on a standard 350-sheet paper input. You can expand this capacity to 900 sheets if needed. This flexibility helps you avoid frequent paper refills during busy workdays. The printer produces up to 38 pages per minute for letter size. You get 36 pages per minute for A4 documents. This speed ensures you keep moving without long waits. Toner replacement happens less often because the system supports up to 20,000 pages. The long-life imaging unit reduces service interruptions. You spend more time working and less time maintaining the machine. The unit weighs 34.9 pounds and measures 10.2 x 15.7 x 14.7 inches. It sits firmly on your desk without wobbling. The grey finish blends into most office environments. You interact with a desktop interface for basic controls. No scanner is included, so you focus solely on printing tasks. The TAA compliance makes it suitable for government or strict corporate environments. You get reliable output without complex configurations. The 1-ghz processor handles jobs smoothly. You simply send documents and collect them. This straightforward workflow suits teams that value consistency over extra features.

Before you buy this printer

The Lexmark MS421dn is a desktop monochrome laser printer. It connects via Gigabit Ethernet or USB. You should check your network ports or USB availability first. The unit weighs 34.9 pounds. It measures 10.2 by 15.7 by 14.7 inches. Ensure your desk or shelf can support this weight and size. The printer holds 350 sheets of standard input paper. You can expand this capacity to 900 sheets if needed. Toner replacement is rated for up to 20,000 pages. This reduces frequent refills. The imaging unit is designed for long life. Fewer service stops mean less downtime. This model fits well in busy offices. It offers steady output for daily tasks. Consider how it compares to other options on this page. It suits users who need reliable, high-volume black-and-white printing without color needs. Verify your space requirements before placing it.

Check before you buy

• Confirm your desk can hold 34.9 pounds
• Check available USB or Ethernet ports
• Measure space for 10.2 by 15.7 by 14.7 inches
• Ensure you only need monochrome printing

The product at a glance

1

Lexmark MS421dn Desktop Laser Printer

Best for: High-volume monochrome desktop document printing

Print Technology

Laser

Print Output

Monochrome

Print Speed

Up to 38 [36] ppm

Connectivity

Gigabit Ethernet, USB

Ink/Toner System

Toner

Scanner Type

Desktop

View on Amazon: Lexmark MS421dn Desktop Laser Printer Affiliate link

The Lexmark MS420 Monochrome Laser Printer delivers black-and-white documents at up to 38 pages per minute using a 1-GHz dual-core processor. It connects directly via Gigabit Ethernet or USB and holds 350 sheets in its standard paper tray. This unit suits you if your office handles steady text workloads and requires high-capacity toner options reaching up to 20,000 pages.

Pros

• Print speeds reach up to 38 pages per minute
• High-yield replacement toner capacity up to 20,000 pages
• Standard 350-sheet paper capacity expandable to 900 sheets
• Gigabit Ethernet and USB connection support

Cons

• Prints in monochrome only with no color capability
• Substantial footprint weighing 34.9 pounds

Good fit if

• You need fast monochrome output up to 38 pages per minute.
• You want high-yield replacement toner that lasts up to 20,000 pages.
• You connect your office hardware via Gigabit Ethernet or USB.

Skip if

• You need full-color printing for charts or marketing collateral.
• You require a lightweight machine that weighs under 30 pounds.

Verdict: Lexmark MS420 Monochrome Laser Printer gives offices reliable black-and-white text output with high-capacity toner options and wired network integration.

Specifications side by side

Frequently asked questions

See also

• lexmark ms420 ms421dn desktop laser printer alternatives
• best lexmark monochrome laser printers
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