Driver for OKI ML521
Table of Contents

The official driver for the OKI ML521 printer is crucial for connecting the device to your computer for the first time or when reinstalling the Windows operating system. This driver allows the system to recognize the printer for setting it up and printing tasks. The installation process is automated and should be straightforward; however, it’s essential to restart your computer after installation for the changes to take effect.
You can download the driver for the OKI ML521 compatible with your operating system version from the table below. We recommend reviewing the installation instructions following the download.
Download Driver for OKI ML521
OS Versions: Windows 11, Windows 10 32-bit, Windows 10 64-bit, Windows 8.1 32-bit, Windows 8.1 64-bit, Windows 8 32-bit, Windows 8 64-bit, Windows 7 32-bit, Windows 7 64-bit | |
Driver Type | Download |
Universal PCL5 Printer Driver |
On this page, you can download the OKI ML521 driver! Download necessary drivers for free for Windows, Linux, and Mac operating systems.

How to Install the Driver for OKI ML521
- Download the driver from the table for your version of Windows
- Run the downloaded file
- Accept the “License Agreement” and click “Next”
- Specify the printer connection method and click “Next”
- Wait for the installation to complete
- Restart your computer for the changes to take effect.


Before installing the driver, ensure that no other version is installed on your computer. If there is, please uninstall it before proceeding with the new installation.
Common Installation Errors and Solutions
- Printer detection issues: If the device is not found, we recommend downloading an alternative version of the driver.
- Printing problems: If the printer does not print after driver installation, make sure you have restarted your computer.
- Unable to launch the driver file: If the file does not open, check your system for viruses, then restart and try again.