HP Printer How to easily Unclog Print Heads 7520 7510 B110A B210A Officejet 6500A not printing black

1. Open the door and wait for the print head to move in to ink the replacement position.
2. Unplug the power from the printer (do not use the power button)
3. Take out all inks.
4. Pull the print head release latch.
5. Take out the print head.
6. Rinse the print head for at least 2-3 min in warm running water.
7. Dry the print head
8. Make sure that the connectors on the print head and on the printer are nice and clean
9. Put the print head and ink back
10. Plug the printer back
11. Make sure that the inks are at least half full
12. Run cleaning procedure two or three times
13. Done enjoy perfect quality printouts

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Didn't even wait for it to dry 😂😂