Missing or damaged ink cartridge messages on PS 7520.

[Larry74]

Many error messages concerning the cyan cartridge missing or damaged. Changed cartridges twice. Cleaned contacts. Cleaned print head. Replaced printhead. Wiggled cartridges. Unplugged and restarted the machine. Nothing has made any difference.

[The_Fossette]

Hi @Larry74

Welcome to the HP Forums!

I appreciate you taking the time to share your concern and thank you for using this forum, it is a great place to find answers.

I reviewed your post and I understand that you are getting an error saying missing or damaged cartridge.

I’d love to help!

Awesome job on diagnosing the issue correctly and performing smart troubleshooting before posting your question on HP forums. Kudos to you on that score.  It is a privilege to work with tech-savvy and technically competent customers like you and we greatly value your business with HP. It is a genuine pleasure to share this platform with you. 

I see that you have performed all the required steps, however, I request you to reset the printer once and update the firmware and check if it helps.

Here is how it is done.

1. Press the Power button to turn on the product.
2. With the product turned on, disconnect the power cord from the rear of the product.
3. Unplug the power cord from the wall outlet.
4. Wait at least 15 seconds.
5. Plug the power cord back into the wall outlet.
6. Reconnect the power cord to the rear of the product.
7. If the product does not turn on by itself, press the Power button to turn it on.

If the issue persists, then it might be a hardware issue and I suggest you contact phone support to check the available service options for your printer.

Let me know how it works.

To simply say thanks, please click the "Thumbs Up" button to give me a Kudos to appreciate my efforts to help. If this helps, please mark this as “Accepted Solution” as it will help several others with the same issue to get it resolved without hassles.

Take care now and have a splendid week ahead.

Cheers!