Brother MFC-7420 (COM3) Driver

The Brother MFC-7420 (COM3) driver lets Windows communicate with your Brother printer, enabling print jobs and access to supported printing preferences. It is useful when setting up the device on another computer, reinstalling Windows, or troubleshooting a missing printer or failed print jobs.

Choose a package that explicitly supports your operating system: Windows 10, 8.1, 7, Vista, or XP, with the correct 32-bit or 64-bit architecture. If you are comparing Windows 10/11 compatibility, do not assume a Windows 10 driver also supports Windows 11; check Brother’s compatibility information first. The “COM3” label may reflect how the device is listed in Windows, so confirm the actual connection before changing port settings.

Key Features

• Printer communication: Provides the software Windows needs to send documents to the Brother MFC-7420.
• Printing preferences: Gives access to supported settings such as paper size, orientation, and print quality.
• Windows integration: Allows compatible applications to use the printer through the Windows printing system.
• Driver replacement: Can help restore printing when an existing driver is missing, damaged, or incompatible. Scanning features may require a separate driver or a full software package.

How to Install Brother MFC-7420 (COM3) Driver

1. Check your system. Confirm your Windows version and whether it is 32-bit or 64-bit. Verify the printer model before choosing a package.
2. Select a compatible download. For your Brother MFC-7420 (COM3) driver download for Windows, use an official Brother source or a trusted source offering the unmodified package. Choose the latest version available for your specific Windows release; a free download should not require purchasing a driver-updater utility.
3. Prepare the printer. Turn it on and follow the package’s connection instructions. For a USB installation, connect the cable when the installer requests it.
4. Install the software. Run the downloaded installer and follow its prompts. If the package contains only driver files, use Windows’ Add Printer wizard and select the extracted driver location.
5. Test printing. Restart if prompted, then print a test page. If printing fails, check the cable, selected printer, print queue, and assigned port rather than assuming COM3 is correct.

Keep the driver updated when Brother provides a compatible update that addresses a problem you are experiencing. Before replacing a working driver, review the package’s supported operating systems and installation notes to avoid introducing compatibility issues.