All the lights of the printer is blinking

[Anujkr824]

All the lights of the printer is blinking 

[Hawks_Eye]

Hi @Anujkr824 

Welcome to the HP Support Community! We're here to help you get back up and running.

Thank you for describing the issue clearly—seeing every light flash at once can feel overwhelming, especially when the printer won’t respond.

If all the lights on your HP printer are blinking simultaneously, it usually signals a critical error or firmware lock. This can happen due to a stalled startup, corrupted job queue, or hardware fault. 

Let’s walk through a full recovery to bring it back to normal.

Step-by-step recovery for blinking lights

Perform a full power reset

• Turn off the printer using the power button.
• Unplug the power cord from both the printer and the wall outlet.
• Wait for 2 minutes to allow internal memory to clear.
• Plug the printer directly into a wall outlet (avoid surge protectors).
• Power it on and observe the lights.

Check for paper or cartridge issues

• Open all access doors and remove any paper from the tray and output bin.
• Remove and reinsert ink cartridges firmly.
• Close all doors securely and restart the printer.

Disconnect from network

• If your printer is connected via Wi-Fi or Ethernet, disconnect it temporarily.
• This prevents it from trying to process remote jobs or updates during startup.

Update firmware via HP App (if accessible)

• If the printer becomes responsive, open the HP App on your Windows 11 PC.
• Select your printer > Settings > Advanced Settings > Tools > Printer Updates.
• Install any available updates and restart the printer.

Run HP’s Diagnose & Fix tool

• Download and run the tool from:
  HP Diagnose & Fix – Printer Troubleshooting

Let me know your exact printer model if you'd like tailored steps or help interpreting the light pattern. If the issue persists after these resets, I can guide you through a semi-full reset or help test from another device.

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Take care, and have an amazing day!

Regards, 

Hawks_Eye