Hi and welcome to JustAnswer,Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, have you tried cleaning the black print head?
Can you please re-run the cleaning procedure?
But first view the video HERE (if have not tried)?
Then it would be indicative of a fully clogged / failed printhead and would require replacement.
Are you then considering a DIY (do-it-yourself) repair approach?