36S0451 Overview
The Lexmark MS521dn is a compact and robust monochrome laser printer designed for mid-size workgroups that demand speed, reliability, and security. Engineered for high-volume printing, it delivers up to 46 pages per minute with crisp, professional output. Its compact footprint makes it an excellent fit for busy offices, while the automatic duplex printing feature promotes efficiency and environmental responsibility. Built-in security features and energy-saving modes ensure that your data is safe and your operational costs stay low.
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 36S0451 |
| Print Technology | Monochrome Laser |
| Print Speed (Letter/A4) | Up to 46 ppm |
| Processor Speed | 1 GHz Dual Core |
| Standard Memory | 512 MB (Expandable to 2.5 GB) |
| Maximum Monthly Duty Cycle | Up to 120,000 pages |
| Recommended Monthly Volume | 2,000 – 15,000 pages |
| Print Resolution | 1200 x 1200 dpi (true), 2400 IQ (enhanced) |
| First Page Out Time | As fast as 6.5 seconds |
| Standard Input Capacity | 350 sheets (expandable to 2,000 sheets) |
| Output Capacity | 150 sheets face-down |
| Duplex Printing | Automatic |
| Connectivity Options |
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Key Features
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Fast Monochrome Printing: Print up to 46 pages per minute with crisp 1200 x 1200 dpi resolution.
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High-Volume Capability: Built for demanding workflows with a maximum duty cycle of 120,000 pages per month.
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Compact Footprint: Ideal for space-constrained workspaces, measuring just 15.7 x 15 x 10.3 inches.
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Efficient Paper Handling:
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Standard 350-sheet input (expandable up to 2,000 sheets)
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150-sheet output tray
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Automatic duplex printing for reduced paper consumption.
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Quick First Print: Get your first page in as fast as 6.5 seconds.
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Robust Security: Safeguard your data with features like Secure Print, SNMPv3, IPSec, and 802.1x authentication.
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Connectivity Options: Includes Gigabit Ethernet and USB 2.0, with optional wireless connectivity for added flexibility.
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Energy-Efficient: Certified ENERGY STAR® and EPEAT® Silver for reduced power usage and environmental impact.
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Expandable Memory: Standard 512 MB RAM, expandable to 2.5 GB for complex print jobs.

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