Issue about the print quality

[Okapi11]

Hello, when I load the new black cartridge, I just received, when I order the printer to print black and white, it prints everything blurry,  but the colour cartridge is totally fine. I've tried cleaning the cartridges and smear-cleaning them but the problem is still persisting.

I have attached the photo of the print quality diagnostics.

[Nal_NR]

Hi @Okapi11,

Welcome to the HP Support Community. 

I understand that you are facing issues with print quality. I'd like to help!

If you have performed all the steps from this document, then this could be a faulty cartridge or printer hardware issue. 

I've sent you a private message. In order to access your private messages, click the private message icon on the upper right corner of your HP Support Community profile, next to your profile Name or simply click on this link.

If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution button, that'll help us and others see that we've got the answers!

[Nal_NR]

Hi @Okapi11,

I request you talk to HP support.

They might have multiple options to help you with this.

1. Click on this link - https://support.hp.com/us-en/contact-hp?openCLC=true
2. Select the country.
3. Enter the serial of your device.
4. Select the country from the drop-down.
5. Click on "Show Options".
6. Fill the web-form. A case number and phone number will now populate for you

[Okapi11]

Thank you for your reply, but I don't seem to have received your private message, so I'm sending you a private message... Good luck!