This document is for HP Officejet Pro 251dw, 276dw, and 8600 (N911a), 8600 Plus (N911g), and 8600 Premium (N911n) e-All-in-One printers.
After installing a new printhead, a 'Missing or Failed Printhead' error message displays on the printer control panel and the printer does not print. An unlatched or improperly seated printhead can cause this error.
Example message on the printer control panel
Missing or failed printhead
The printhead appears to be missing, not detected, or incorrectly installed.












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