error HP

Error Code Attention light and Printhead icons blinking

Printhead error. One or both printheads are missing, installed incorrectly, incompatible, or still have protective plugs/tape.

? What Causes This

Missing printhead, improper installation, protective tape still attached, or incompatible/damaged printhead.

Make sure both printheads are properly installed.
Install any missing printhead.
If both are installed, remove the indicated printhead, ensure there is no orange plug or plastic tape on it, and reinsert securely.
Ensure you are using correct HP printheads for your printer.

Source: page 17 of the official manual

From the manual

This error code appears in: