This English quick guide is based on the Korean catalog. Confirm model-specific compatibility and installation details on the manufacturer’s official page.
Download MS521dn driver
- Match the full model number on the device label, including suffixes.
- Check your operating-system version and architecture on the official support page.
- Preserve working queues, shared jobs, ports, paper and default-printer settings; inspect only your own failed work.
- Follow the manufacturer’s instructions for power, USB, and network connections.
Model and driver source
This guide is for the ms521dn monochrome laser print-only printer with automatic duplex. standard gigabit ethernet and usb 2.0 hi-speed type-b for pc printing. direct usb: no is not absence of pc usb. wi-fi is optional marknet n8370, not standard. do not invent scan/copy/fax from a generic package name. discontinued sales and driver availability are separate. model Lexmark MS521dn. The download button opens the official Lexmark support page in this window. The manufacturer’s page is authoritative for the available driver packages and their current compatibility.
Operating-system and download checks
The Korean catalog lists these systems for checking: Verified 7 October 2026: actual MS521dn download list and DRI1000765 detail. Lexmark Printer Software Installation Package 06122026.exe, 3.1.0.0, 196 MB, released 31 July 2026. Windows 11 (64-bit), Windows 10/8.1/8/7 (32/64-bit), Server 2025/2022/2019/2016/2012 R2/2012 (64-bit). MS521 in supported products and MS521dn in model-specific list. Do not infer ARM or Mac/Linux versions from a menu; inspect their own exact details. Old OS file availability does not guarantee OS security support.. Select your exact operating system and version on the official page. If your version is not offered, do not install a package intended for a different system.
Connection and installation
- Confirm model, OS/CPU, rights, region/language and installed options. The linked Middle East English list and actual file language must match your needs. Read manufacturer terms yourself. Preserve working queues/jobs/defaults. Never force incompatible drivers or bypass security warnings.
- Official cable guidance: use approved power cord and grounded rated socket; do not make cable connections during lightning. Do not disturb USB/wireless adapter while printing. USB printer port Type-B connects to PC; Ethernet connects to network. Follow actual installer prompts for USB connection timing, then check actual MS521dn USB queue/port and test print.
- For Ethernet check power/cable/router and reachable PC network. Obtain actual IP from TCP/IP in Network/Ports as official guide indicates. Do not copy example IP or change a shared address without coordination. Run official model/OS installer and follow its network discovery/address prompts, not guessed button names. Check actual queue/IP/port/paper/duplex and test print; change working default only when needed and restart only when prompted after saving work.
- Wireless requires actual MarkNet N8370 option and its official installation guide; absent option means USB/Ethernet. Use approved SSID/authentication/encryption and real reachable IP, then official network installation prompts. Do not invent WPS/Wi-Fi Direct menus or disable protections wholesale.
Troubleshooting
Discovery: check power, real USB/LAN connection and PC network; absent Wi-Fi option is not a wireless setup fault. Offline/printing failure: check actual MS521dn queue, USB port or network IP and paper; preserve working queues and others' jobs. Install failure: check file OS/CPU/region/language, rights and space; never force incompatible file or bypass warnings. Generic Print and Scan package does not add scan/fax to this print-only model. Record exact model/OS/CPU/connection/message for official support.
Frequently asked questions
Where should I download the driver?
Use the official manufacturer page linked in the download panel above.
Can I use a driver for a similar model?
Do not assume it is compatible. Confirm the full model number and package on the manufacturer’s page.