My printer HP Officejet Pro 8720 is stuck on initializing with new cartridges after oobe reset

[Amoeba7]

My printer is stuck on initializing with new cartridges after oobe reset.

After sometime displaying "Supply system problem"

See the pictures

Please help.

[Amoeba7]

@Riddle_Decipher need help

[Amoeba7]

still waiting for support

[Raj2111]

Hi @Amoeba7 

Welcome to the HP Support Community!

I understand that you are getting supply system error  I am glad to assist you today.

Clean the cartridge contacts

Turn the printer on.

Open the door to access to the cartridges.

Wait until the carriage stops moving before you continue.

Push in on the front of the cartridge indicated in the error message, and then remove it.

Wipe the electrical contact on the cartridge with a lint-free cloth.

Insert the cartridge into its color-coded slot until it snaps into place.

Repeat these steps for any other cartridges indicated in the error message.

Close the cartridge access door.

Next step update the printer firmware from here and restart the printer and check. 

refer to this document : An 'Ink System Failure' or 'System Supply Problem' Error Displays

Hope this helps!

Please perform these steps and Feel free to reply to your public post for any further assistance.

Thank you for being a Valuable Member of our HP Family.

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

-Regards, 

[Amoeba7]

I have already contacted the contact center, and tried all the suggestions that have been given. but it didnt solved. Can i get old version of firmware?