The Brother MFC 9120CN driver lets Windows communicate with your network-connected multifunction printer, enabling print jobs and access to supported device settings. Installing the appropriate Brother package helps your computer recognize the machine and may also provide scanning support, depending on the download you choose.

Key Features

• Network printing: Connects Windows applications to the Brother MFC 9120CN over your local network so you can send documents without a direct USB connection.
• Print controls: Provides access to supported settings such as paper size, media type, orientation, and color or monochrome output.
• Scanning support: Packages that include a scanner driver allow compatible Windows software to receive scans from the device.
• Device configuration: Helps Windows identify the printer correctly and use its available capabilities rather than relying solely on a basic generic driver.

How to Install

1. Check your Windows version. Confirm whether you use Windows 11, 10, 8, or 7, and check your system architecture. Choose a package explicitly listed for your operating system; this older model may not have a dedicated driver for every version.

1. Prepare the network connection. Turn on the Brother MFC 9120CN and connect its Ethernet port to your router or network switch. Make sure your computer can reach the printer on the same local network.

1. Download and open the driver package. Select the appropriate Brother driver, extract the files if necessary, and run the installer. Allow administrator access if Windows requests it.

1. Choose the network installation option. Follow the prompts and select the printer when it appears. If automatic discovery fails, use the printer’s IP address, which you can find in its network settings or on a printed network configuration report.

1. Verify the installation. Print a test page from Windows printer settings. If you installed scanning components, try a scan in a compatible application as well. Restart your computer if the installer asks you to.

For Windows 11 or any system without a matching package, check Brother’s compatibility guidance before trying an older driver. A driver that installs successfully may still offer fewer features than a fully supported package.

Common Issues and Fixes

• Install fails or stalls: Disconnect the USB cable, run the Brother installer as administrator, and temporarily disable antivirus/firewall. Remove any partial install via Programs and Features, reboot, then reinstall the full MFC 9120CN package.
• Device not detected: For USB, use a rear port and a known-good cable, not a hub. For Ethernet, print the network configuration page, confirm the IP is on the same subnet, and add the printer by IP. Reserve a static DHCP address to avoid dropouts.
• Driver/version conflicts: Uninstall older Brother MFC/laser drivers and stale printer ports first. Install only one full 9120CN driver package; avoid mixing generic Windows and Brother drivers. If the package is older, try Windows compatibility mode.