This English quick guide is based on the Korean catalog. Confirm model-specific compatibility and installation details on the manufacturer’s official page.
Download MS821dn driver
- Match the full model number on the device label, including suffixes.
- Check your operating-system version and architecture on the official support page.
- Cancel pending print jobs before replacing an existing driver.
- Follow the manufacturer’s instructions for power, USB, and network connections.
Model and driver source
This guide is for the monochrome laser print-only printer with automatic duplex, gigabit ethernet and pc usb type b. front type a is not the computer cable port. wireless requires an actually installed compatible marknet option; not a scanner, copier or fax device. model Lexmark MS821dn. 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: exact model download result recommends DRI1000765, Xerox/Lexmark Printer Driver and Software (Print and Scan), 3.1.0.0, released 31 July 2026, displayed 196MB, filename Lexmark Printer Software Installation Package 06122026.exe; Products explicitly includes MS821. Detail supports Windows 11 x64, Windows 10/8.1/8/7 32/64-bit and Server 2025/2022/2019/2016/2012/R2 x64. Do not infer Vista/Server 2008 from menu options or Windows ARM support. Legacy file availability is not OS security support. Current US product guidance directs Apple users to AirPrint; do not run Windows EXE on Mac. Linux requires an actually compatible Additional downloads file for the distribution/CPU. Scan/Fax components in a shared package do not add hardware.. 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
- Check exact MS821dn, OS/CPU, installation rights, real interface, paper/toner and panel messages. Preserve shared queues/jobs/IP/ports/settings; coordinate changes with the administrator. Read actual terms yourself; no default firmware update, reset or security weakening.
- USB: use the PC Type B port and follow official hardware precautions. Obtain the correct Windows package, follow current installer prompts, verify actual queue/USB port and media/duplex settings, then test a small job.
- Ethernet: printer and computer on the same approved network; obtain actual IP from display. Install the driver, add the real device in Printers and scanners. If missing, add manually by IP/hostname as TCP/IP Device, choose the actual driver and finish. Verify queue/address/media/installed options and test; never copy example IPs.
- Wireless only with installed compatible option. Official procedure requires Active Adapter Auto and no Ethernet cable. Coordinate with administrator and preserve active work before changing an operating wired connection. Use Settings / Network-Ports / Wireless / Setup On Printer Panel / Choose Network, approved SSID and credentials, then actual address and queue on same network. No invented built-in Wi-Fi or weakened security.
Troubleshooting
Official MS821 Print jobs do not print checks the selected printer, power/display errors, ports and secure cables before restart/reinstallation. Offline/USB issues need actual queue/port/cable; network issues need current IP, same network and real wireless option. If unresolved, preserve other users' jobs and safely switch off, wait about ten seconds and power on. Reinstallation is a later step with administrator coordination and preserved settings, not mass deletion of working queues. Contact official support with exact model/OS/connection/message if still failing. Do not apply scanner troubleshooting to print-only hardware.
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.