I have the error code 0xc19a0040 on my HP 8620 Officejet Pro (Printhead is missing or not detected). It just occurred on a day I had printed a few items. I did not experience any PC software changes or power outages. I have powered down the unit several times and plugged directly to outlet per many solutions.
I have genuine HP cartridges. It measures them fine because I put in used empty ones and it registered the difference. I have done the HP troubleshooting diagnostics with the latest version. The printer still faxes it just does not print.
I have taken print head out and reinstalled. I did not see anything behind it or on it that was usual. I did not see anything unusual when I took out print cartridges to see if the contacts appear to be bad. Did not see any concerns.. Please help. Is this software related or do not need to replace printhead?