When you see the message shown below, the normal procedure is to replace the Printhead that has failed.

But in certain circumstances, even after replacing the Printhead the above message continues to appear. This could mean that one of the components of the Printer is failing and requires cleaning or replacing. Follow these instructions to troubleshoot the message:

Printhead Error message.

Replace the Printhead that has failed.
If the message continues to appear, clean the electrical contacts inside the Carriage Assembly (power OFF the Printer first) and the electrical contacts of the Printhead (make sure you use water based solutions only).
If the message continues to appear after cleaning the Carriage Assembly and the Printhead, replace the Printhead again.
If the message still continues to appear, replace the Carriage Assembly » Carriage Assembly (Including Belt).