How to fix a HP Printer not printing black ink and missing colours 5510 5515 5520 5524 3070A 364
Follow
1. Run cleaning procedure. 2. Open top cover. 3. Unplug power 4. Remove inks 5. Put moisture kitchen towel under the print head 6. Put moisture kitchen towel on the printed 7. Remove towels after 1530 min and put inks back 8. Run cleaning procedure again 9. Run cleaning ink smears it necessary