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Printer issue

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HP deskjet 3764

Hello I bought this printer yesterday and all was fine used it multiply times today I have turned it on and now power light is flashing and all screen is flashing showing a letter E can anyone help please 

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Hi @Suzanne32

Welcome to the HP Support Community. I understand you are not able to print and the lights on the printer are blinking. This indicates a hardware issue in the printer. I'd be happy to assist you. Let us try these steps:


Reset the printer

  1. With the printer turned on, disconnect the power cord from the rear of the printer.
  2. Wait at least 60 seconds.
  3. Reconnect the power cord to the rear of the printer.
  4. Turn ON the printer, if it does not automatically turn on.
  5. Wait until the printer is idle and silent before you proceed.

Note: HP recommends connecting the printer directly to a wall outlet rather than a surge protector or a power strip.


Refer to this document to resolve the blinking light issue.

Check if any other light is blinking apart from the power light.

Also, check on the printer screen for an error code/number with the letter 'E'.


Make sure the ink cartridges are installed properly and there are no paper jams inside the printer.

Check if the print carriage is moving freely.


Hope this helps! Keep me posted. 


Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

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Have a great day! 

I am an HP Employee

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