Driver for OKI MPS420b
Summary

The official driver for the OKI MPS420b printer is essential for the initial connection of the device to a computer and during Windows operating system reinstallation. This driver allows the system to recognize the printer for future use, as well as for configuration and printing. Installation is straightforward and automatic; however, a system restart is required afterward to apply the changes.
You can download the driver for the OKI MPS420b compatible with your operating system version from the table below, and we recommend reviewing the installation instructions afterward.
Download Driver for OKI MPS420b
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 MPS420b driver! Get the necessary drivers for Windows, Linux, and Mac operating systems for free.

How to Install the Driver for OKI MPS420b
- Download the driver from the table for your Windows OS version
- Run the downloaded file
- Accept the “License Agreement” and click “Next”
- Specify how the printer will be connected to the 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 currently installed on your computer. If one exists, uninstall it before proceeding with the new installation.
Common Errors and Solutions During Driver Installation
- Printer detection issue: 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.
- Cannot run the driver file: If the file does not open, check your system for viruses, then restart and try again.