Hi @StanJoyce
Welcome to the HP Support Community!
Thanks for posting your query! We're here to help you get back up and running.
The steps listed in the link below helps in resolving missing black ink, colors are faded or do not match the original, and lines or streaks in printouts.
Perform the following tasks in the order given. Use the printer after each task to see if the issue is resolved.
https://support.hp.com/us-en/document/ish_8610943-8611046-16
We're thrilled to have the opportunity to assist you and provide a solution. We hope our assistance has been helpful!
If your HP printer is printing in color ink only and does not print in black ink, follow the steps in this video to fix the issue.
https://players.brightcove.net/1160438706001/ByLWUi0A_default/index.html?videoId=ref:REFIDNS37197276
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Take care, and have an amazing day!
Regards,
Vince_0406