all lights on my ENVY 6455e are flashing

[rben525]

all lights on my ENVY 6455e flashing constantly.  won't print

[Kumar0307]

@rben525, Welcome to the HP Support Community! I’m here to help.

I understand you are not able to print. Which device are you using to print?

How is the printer connected?

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.

Try making a standalone copy from the flatbed glass and check if that works. By this, we can conclude if this is a hardware or a driver issue.

Follow the steps mentioned in this document - Blinking Lights and Error Codes

Hope this helps! Let me know how it goes. 

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Have a great day!