With its powerful processor, 44 pages-per-minute output, enhanced security and built-in durability, the MS521dn supports the success of mid-size workgroups in all their mono printing.
Energy efficiency
Make every watt count with energy management features that reduce power consumption, whether the printer is active or in sleep mode. Lower fusing temperature and automatic management of processor cores based on workload help to meet rigorous ENERGY STAR 2.0 requirements. That benefits the planet and your budget.
The definition of clear text
Some laser printers struggle to print grey text that’s easy to read - not the MS520 series. Its innovative font outlining technology makes even the smallest grey text crisp and clear.
Versatile media handling
Print what you want, in the size that you want. The standard media tray adjusts to paper sizes from A6 to legal, whilst the 100-sheet multipurpose feeder accepts smaller media and envelopes to give you even more design and output possibilities.
All information provided is subject to change without notice. Lexmark is not liable for any errors or omissions.
Ready when you are
Robust and reliable, Lexmark printers are built to work anywhere, from showroom to warehouse with few interventions. Keep going with long-life components, replacement cartridge yields of up to 25,000 pages and a maximum input capacity of 2,000 pages.
Full-spectrum security
Lexmark's comprehensive approach to product security is a design and engineering mandate across our entire product portfolio. Our security features help to keep your information safe - in the document, on the device, over the network and at all points in between. That’s why Keypoint Intelligence - Buyers Lab honoured Lexmark with a prestigious BLI PaceSetter award for Document Imaging Security. And this Lexmark product enables you to be GDPR ready.
Performance and value
Get mono printing at up to 44 pages per minute, plus standard two-sided printing, at an affordable price. Durability and long-life components keep your maintenance costs low, too. More information: Logistics data | Harmonized System (HS) code | 84433210 | Network | Ethernet LAN | Yes |  | Network ready | Yes | | Cabling technology | 10/100/1000Base-T(X) | | Ethernet LAN data rates | 10,100,1000 Mbit/s | | Security algorithms | 802.1x RADIUS, LEAP, MD5, MSCHAPv2, PEAP, SSL/TLS, TTLS | | Supported network protocols (IPv4) | TCP/IP IPv4, AppleTalk, TCP, UDP | | Supported network protocols (IPv6) | TCP/IP IPv6, AppleTalk, TCP, UDP | | Management protocols | DHCP, APIPA (AutoIP), mDNS, IGMP, WINS, DDNS, SNMPv3, SNMPv1, SNMPv2c, Telnet, NTP, ICMP, HTTP, DNS, ARP, HTTPs (SSL /TLS), Finger | | Mobile printing technologies | Apple AirPrint | Packaging content | Cartridge(s) included | Yes | | Software CD | Yes | | Documentation CD | Yes | | Cables included | AC | Input & output capacity | Total number of input trays | 2 | | Total input capacity | 350 sheets | | Total output capacity | 150 sheets | | Paper input type | Paper tray | | Multi-Purpose tray | Yes | | Multi-Purpose tray input capacity | 100 sheets | | Maximum number of input trays | 5 | | Maximum input capacity | 2000 sheets | | Maximum output capacity | 150 sheets | Features | Maximum duty cycle | 120000 pages per month | | Printing colours | Black | | Number of print cartridges | 1 | | Page description languages | Microsoft XPS, PCL 5e, PCL 6, PDF 1.7, PPDS, PostScript 3 | | Recommended duty cycle | 2000 - 15000 pages per month | | Country of origin | China | Performance | Internal memory | 512 MB | | Maximum internal memory | 512 MB | | Built-in processor | Yes | | Processor frequency | 1000 MHz | | Sound pressure level (printing) | 56 dB | | Sound pressure level (duplex printing) | 55 dB | | Noise level (idle) | 14 dB | Design | Product colour | Black, White | | Built-in display | Yes | | Display | LCD | | Colour display | Yes | | Display diagonal | 2.4 " | | Certification | ICES-003 Class B, BSMI Class B, VCCI Class B, US FDA, UL 60950-1, FCC Class B, cUL CAN/CSA-C22.2 60950-1, NOM, CB EN/IEC 60950-1, CB EN/IEC 60825-1, CE DoC (EN 62301 Class B, EN 62311, CE EN/IEC 60950-1, CE EN/IEC 60825-1, EN 61000-3, EN 55022 Class B, EuP, EN 55024, UL), EFTA (CE), KCC, CCC, CECP, CEL, C-tick DoC, UL-AR, KC mark, UL GS mark, EC 1275, MET-I, ISO 532B, ECMA-370, TED, GOST-R, SII, TER | Sustainability | Sustainability certificates | ENERGY STAR | Packaging data | Package width | 430 mm | | Package depth | 470 mm | | Package height | 376 mm | | Package weight | 15990 g | Weight & dimensions | Width | 399 mm | | Depth | 374 mm | | Height | 260 mm | | Weight | 14100 g | Operational conditions | Operating temperature (T-T) | 16 - 32 °C | | Operating relative humidity (H-H) | 8 - 80 % | | Operating altitude | 0 - 5000 m | Paper handling | Maximum ISO A-series paper size | A4 | | Paper tray media types | Card stock, Envelopes, Labels, Plain paper, Transparencies | | ISO A-series sizes (A0...A9) | A4, A5, A6 | | Non-ISO print media sizes | Executive, Folio, Legal, Letter, Oficio, Statement, Universal | | JIS B-series sizes (B0...B9) | B5 | | Envelopes sizes | 7 3/4, 9, 10, DL | | Paper tray media weight | 60 - 120 g/m² | | Multi-Purpose Tray media weight | 60 - 216 g/m² | Ports & interfaces | Standard interfaces | Ethernet, USB 2.0 | | USB 2.0 ports quantity | 1 | | USB connector | USB Type-B | System requirements | Windows operating systems supported | Yes | | Mac operating systems supported | Yes | | Linux operating systems supported | Yes | Power | Power consumption (printing) | 620 W | | Energy Star Typical Electricity Consumption (TEC) | 1.8 kWh/week | Printing | Print technology | Laser | | Duplex printing | Yes | | Maximum resolution | 1200 x 1200 DPI | | Print speed (black, normal quality, A4/US Letter) | 44 ppm | | Duplex print speed (black, normal quality, A4/US Letter) | 22 ppm | | Time to first page (black, normal) | 6 s | | Print margins (top, bottom, right, left) | 4 mm |
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