Driver for OKI ML391
Summary

The official driver for the OKI ML391 printer is essential when connecting the device to your computer for the first time or when reinstalling the Windows operating system. This driver enables Windows to recognize the printer for printing tasks, and includes software or utilities for printer configuration.
To download the driver for the OKI ML391, select the appropriate version for your Windows OS and architecture. If you encounter issues, we recommend reviewing the detailed installation instructions and following them closely.
Download Driver for OKI ML391
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 ML391 driver! Download necessary drivers for Windows, Linux, and Mac operating systems for free.

How to Install the Driver for OKI ML391
- Download the driver from the table for your version of Windows
- Run the downloaded file
- Accept the “License Agreement” and click “Next”
- Select the method for connecting the printer to your computer and click “Next”
- Wait for the installation to complete
- Restart your computer to apply the changes.


Before installing the driver, ensure that no other version is installed on your computer. If one is, please remove it before proceeding with the new installation.
Common Errors and Solutions When Installing the Driver
- Printer Detection Issues: If the device is not found, we recommend downloading a different version of the driver.
- Printing Problems: If the printer does not print after driver installation, ensure that you have restarted your computer.
- Unable to Launch Driver File: If the file does not open, check your system for viruses, then restart and try again.