E4 message

[ellenvoice1]

Hello - I keep getting an E4 message on my HP Envy 6455 printer.  I have opened it all up, no paper jam.  I cleaned all the rollers.  And of course, I've restarted it several times.  Still won't print!

[Jay_G24]

Hi @ellenvoice1,

I'd like to help!

Let's try a power reset on the printer

Reset the product

• With the printer turned on, disconnect the power cord from the rear of the printer.
• Unplug the power cord from the wall outlet.
• Wait at least 60 seconds.
• Plug the power cord back into the wall outlet.
• Reconnect the power cord to the printer.
• Turn the printer on. HP recommends plugging the printer directly into a wall outlet.

Try updating the printer's firmware - HP Printers - Updating or Upgrading Printer Firmware

Also, try the steps in the document - E4 (Paper Jam) Error

Hope this helps! Keep me posted. 

And, Welcome to the HP Support Community. 

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