The printer turns off immediately when the power is turned on and lights shows blinking

[Ashiq66]

The printer turns off immediately when the power is turned on and lights shows blinking

[Gaya1239]

Hi @Ashiq66,

Welcome to The HP Support Community.  

Thank you for posting your query, I will be glad to help you.

I understand your HP LaserJet Pro MFP M126nw turns off immediately when powered on and shows blinking lights, it could be due to several issues. Here are some steps to troubleshoot:
 

Check the Power Supply:

• Ensure the power cord is securely connected to both the printer and the power outlet.
• Try a different power outlet to rule out any issues with the current one.
• If possible, test with a different power cord to see if the issue persists.

Inspect for Jammed Paper:

• Even though the printer is not on, check for any visible paper jams or obstructions inside the printer.

Examine the Printer’s Display and Lights:

• Refer to the printer’s manual to understand the meaning of the blinking lights. This often indicates a specific error code or issue.

Perform a Power Cycle:

• Unplug the printer from the power source.
• Wait for at least 60 seconds.
• Plug it back in and try turning it on again.

Reset the Printer:

• Some models allow a factory reset even when the printer is not fully operational. Check the manual for instructions on how to perform a reset.

Check for Overheating:

• Ensure the printer is in a well-ventilated area and not overheating. Allow it to cool down if it feels warm.

Refer to this document:  HP LaserJet Pro MFP M126nw User manual

I hope this helps. 

Take care and have a good day.

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