UA_400_EB000U0405

[537p5b]

UA_400_EB000U0405 

[Max3Aj]

@537p5b, Hello and welcome to the HP Support Community!

Thank you for reaching out regarding the error code UA_400_EB000U0405 on your HP OfficeJet Pro 9730 Wide Format All-in-One Printer running Windows 11. This error typically indicates a communication or driver-related issue between the printer and the operating system.

Here’s a step-by-step guide to resolve it:

Restart Devices

• Power off your printer and computer.
• Disconnect the printer’s power cable for 60 seconds.
• Reconnect and power on both devices.

Check Printer Connection

• Ensure the printer is properly connected via USB or Wi-Fi.
• If using Wi-Fi, confirm both devices are on the same network.
• Avoid using VPNs during setup or troubleshooting.

Update or Reinstall Printer Drivers

1. Visit the official HP support page for your printer:
   HP OfficeJet Pro 9730 Drivers & Software
2. Download and install:
   • HP Easy Start Printer Setup Software
   • Smart Universal Print Driver
   • Printer Firmware Update (if available)

Use HP Smart App

• Download the HP Smart App from the Microsoft Store. HP Smart
• Use it to:
  • Set up your printer
  • Run diagnostics
  • Update firmware
  • Scan and print

Firmware Update

• Go to the printer’s control panel.
• Navigate to Settings > Printer Maintenance > Update Firmware.
• Ensure the printer is connected to the internet.

I hope the information shared has been useful and resolves your concern.

Wishing you a smooth and hassle-free experience ahead!

If this solution helped, please click “Accepted Solution” so others can benefit too. Don’t forget to hit the “Yes” button if you found this helpful!

Warm regards,

Max3Aj

HP Support