Printer Issues – HP Office Jet Pro 8000

With two days we had two of these printers stop printing black ink. Replaced ink cartrdges still same issue. After running sever cleaning cycles we were only getting a faint printout, wit hthe black ink only. The color ink is working without issue. I keept searching for ideas online and came across an HP articale describing print head cleaning methods. There are three, the first one did not help. It can be performed by doing the following:
• Press and hold the Power button.
• Press the Cancel button twice.
• Press the Resume button once.
• Release the Power button.

The intermediate method yielded the same result, and can be done by doing the following:

• Press and hold the Power button.
• Press the Cancel button twice.
• Press the Resume button twice.
• Release the Power button.

The advanced method yielded better results. I could tell it was helping as the print was slightly darker. I had to run this twice to get it back to full quality. It can be done by the following:
• Press and hold the Power button.
• Press the Cancel button once.
• Press the Resume button nine times.
• Release the Power button.

Here is a link to the article:

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