All lights are flashing

[Keke95]

I have just received my HP Envy 6300 printer at home and started the wireless installation on my Mac and iPhone.

So far so good... The installations was over on both , and wanted to do a test: I put the paper in the tray and then the cartridges in the printer. Since then, all the lights on my printer have been flashing non-stop every time the printer is on.
I can't even turn it off, it's completely jammed. I have tried unplugging it and plugging it back in, the printer is still flashing.

It's just been unpacked, never been used... what's going on?

[TEJ1602]

@Keke95, Welcome to HP Support Community!

Follow the steps below to isolate and resolve the issue-

1. Turn the printer on, if it is not already on.
2. Wait until the printer is idle and silent before you continue.
3. With the printer turned on, disconnect the power cord from the rear of the printer.
4. Unplug the power cord from the wall outlet.
5. Wait at least 60 seconds.
6. Plug the power cord back into the wall outlet.
7. Reconnect the power cord to the rear of the printer.
8. Turn on the printer, if it does not automatically turn on.
9. Wait until the printer is idle and silent before you proceed.

Also, Update the printer firmware

Download available firmware updates from the HP website

With the printer on and connected to the computer, go to HP Customer Support - Software and Driver Downloads, and then identify your printer. Look for and install any available firmware updates. Refer to the document HP Printers - Updating or Upgrading Printer Firmware

Additionally, refer to the document HP DeskJet, ENVY 6000, 6400 Printers - Blinking Lights and Error Codes to see if you can find anything related.

Hope this helps! Keep me posted. 

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