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‎12-19-2025 01:12 PM

HP Recommended

You are looking for something like the plastic finger I circled in the picture, what is circled is probably not the sensor/switch you are looking for, but it would be similar.

 

The other end of the finger is a flag that moves in and out of an optical sensor.

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‎12-19-2025 02:09 PM

HP Recommended

Thanks, but that's not S665. It is SR662-SR664. Both of these fingers looks ok.

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‎12-20-2025 09:50 AM

HP Recommended

I found these error codes in the admin console via the event log.

 

Screenshot 2025-12-20 at 17-11-49.png

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‎12-20-2025 08:52 PM - edited ‎12-20-2025 08:53 PM

HP Recommended

It is likely not the flag that is broken it is the optical sensor itself that has failed. Sadly these consumer level products do not have extensive diagnostics built in. About the only way to test sensor is to replace them. The only real way to obtain them is to harvest them from another device.

If you find the information provided useful or solves your problems, help other users find the solution easier by marking my post as an accepted solution. Clicking "yes" on "was this reply helpful" also increases the chances that this solution will help others.
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.



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