This driver download is available for Windows PCs.
At a Glance
DeviceBrother MFC-640CW Fax Only
VendorBrother
Supported OSWindows 10, 8.1, 7, Vista, XP
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The Brother MFC-640CW Fax Only driver allows Windows to recognize the fax component of your Brother multifunction device and use it with compatible fax software. It is intended for users who need PC-based fax functionality rather than a printing or scanning driver, including those restoring a missing fax entry after reinstalling Windows.
Key Features
- Fax-specific support: Provides the Windows driver component needed to access the MFC-640CW’s fax functions through compatible Brother software.
- Network device integration: Helps compatible software communicate with the fax component when the device is configured for a supported network connection.
- Legacy Windows compatibility: Listed operating systems include Windows 10, 8.1, 7, Vista, and XP; verify the individual package’s compatibility before downloading.
- Targeted installation: Addresses fax-driver setup without assuming that printer, scanner, or other multifunction features are included in the same package.
How to Install Brother MFC-640CW Fax Only Driver
- Check your Windows version and system type. Confirm whether your computer uses a 32-bit or 64-bit operating system, then compare those details with the driver package requirements. If you are checking Windows 10/11 compatibility, note that Windows 11 is not included in the listed supported systems.
- Choose the appropriate download. Before starting your Brother MFC-640CW Fax Only driver download for Windows, verify the model name, supported operating system, and package description. Select the latest version compatible with your setup, not simply the newest package available.
- Prepare the device. Turn on the MFC-640CW and confirm its connection. For a network installation, make sure the computer can reach the device on your local network. Follow any package instructions about when to connect or detect the hardware.
- Install the driver. Extract the downloaded files if necessary, then run the supplied installer and follow its prompts. If no installer is included, use the installation instructions provided with the package. Additional Brother fax software may be required.
- Verify fax access. Restart Windows if prompted, open your compatible fax application, and check that the Brother fax device is available. Send a test fax when practical to confirm the setup.
Keep a working driver backed up before you update, and review compatibility notes whenever changing Windows versions. A free download should still come from a trusted source and match this exact fax component. Updating may help resolve driver-related issues, but it will not automatically add support for an unlisted operating system.
Driver Details
| Device | Brother MFC-640CW Fax Only |
|---|---|
| Vendor | Brother |
| Category | Network |
| Supported OS | Windows 10, 8.1, 7, Vista, XP |
| Published | November 1, 2026 |
| Updated | November 1, 2026 |
This driver download is available for Windows PCs.