HP LaserJet 400 M401DN Driver

The HP LaserJet 400 M401DN driver lets Windows communicate with your HP monochrome laser printer, so you can send print jobs and access supported printing settings. It is useful when setting up the printer on an Ethernet network or USB connection, reinstalling Windows, or troubleshooting a computer that no longer recognizes the device.

Key Features

• Network printing support: Connect to the M401DN over your local Ethernet network and print from computers configured to use it.
• Print settings access: Adjust paper size, orientation, copy count, and other options available through the selected driver.
• Automatic duplex control: Use the printer’s built-in two-sided printing capability to reduce paper use for everyday documents.
• Windows integration: Make the printer available to Windows applications and manage print jobs through the standard print queue.

How to Install HP LaserJet 400 M401DN Driver

1. Check your Windows version and system type. Identify whether you use Windows 11, 10, 8, or 7, and confirm whether your system is 32-bit or 64-bit. For Windows 10/11, check Settings > System > About; Windows 11 requires a compatible 64-bit package.
2. Choose the appropriate download. For your HP LaserJet 400 M401DN driver download for Windows, select a package that explicitly supports your operating system. Look for the latest version compatible with your setup, rather than assuming every package supports all listed Windows versions. A free download should not require purchasing a third-party driver updater.
3. Prepare the printer connection. Turn on the printer. For network installation, connect it to your router or switch with an Ethernet cable and ensure your computer can reach the same network. For USB installation, follow the installer’s instructions on when to connect the cable.
4. Run the installer. Open the downloaded file, approve any Windows permission prompt, and follow the steps to install the driver. Choose the correct connection type and select your printer; if network discovery fails, try adding it by its IP address.
5. Verify the setup. Open Windows printer settings and print a test page. Check paper settings and enable two-sided printing if needed.

Keep the driver updated to benefit from any available compatibility fixes and printing improvements. Before you update, confirm that the replacement package supports your Windows version and connection method. If printing already works reliably, review the release notes to decide whether a newer driver addresses your needs.

Common Issues and Fixes

• Install fails or stalls: Disconnect the USB cable, run the HP LaserJet 400 M401dn installer as administrator, and remove existing M401dn printer entries in Print Management before rebooting. If setup still fails, install the basic PCL6 driver manually via Add Printer.
• Printer not detected: For USB, try a rear port and a known-good cable. For Ethernet, confirm the M401dn has a valid IP on the same subnet and add it with a TCP/IP port instead of WSD; allow HP setup through Windows Firewall.
• Driver version conflicts: Remove duplicate or old M401dn queues and avoid mixing HP Universal Print Driver with the model-specific driver. Match 32/64-bit Windows, then reinstall the correct PCL6 or PostScript driver; roll back a Windows Update driver if needed.