My printer says black ink is out when it’s not

[Jasong2]

I have a inkjet 6940 and it keeps saying the black ink is out. I have replaced the ink cartridges and even bought a whole new printer. I have trouble shooted it multiple times and when I run the hp program for the update it says file now found and it worked fine on my sons computer

[Kumar0307]

@Jasong2, Welcome to the HP Support Community! I’m here to help.

I understand the printer is not accepting the replacement black ink cartridge.

Make sure you are using HP inks. 

Check if the ink cartridges are properly inserted in the printer, you may refer to - Replace HP inkjet printer cartridges

Kindly perform the steps mentioned in this document - Ink cartridge error

Insert the old/alternate ink cartridge(if available) and check if the error persists. If not, then the new one is defective.

If the error persists, it could be the printer that has gone bad.

• I've sent you a private message with further instructions to get this issue sorted.
• In order to access your private messages, click the private message icon on the upper right corner of your HP community profile, next to your profile Name or simply click on this link: https://h30434.www3.hp.com/t5/notes/privatenotespage

Hope this helps! Let me know how it goes. 

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