ipf670e Printhead error still after replacement

[jcc147]

My ipf670e printer got a "Printhead Error" and asked to replace a printhead.

A new printhead PF-04 was ordered to replace the one reported error.

After the replacement, the same message still persists.

Did I miss any step when replacing the head?

Any advice is appreciated.

[Lithoman]

What is the specific error? Do you visibly see air in the ink lines around the carraige?

[jcc147]

The exact message on the LCD screen is shown below. The same message got after the printhead was replaced with a new one. Air is existing in the ink lines. See photo below.