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10-26-2023 02:40 PM
Open the right door and check for ink leaks. I have seen a few instances of printhead ink leak and that ink gets on the carriage sensor. Usually that stops paper loading as well but is something you can check. The brush indicated in the photo below is what cleans the line sensor, however in the case of a printhead leak that brush becomes soaked in ink that then gets smeared on the sensor. If that is the case, the printhead will need to be replaced and possibly the service station that contains the brush as it is difficult to clean the brush. If you are going to try cleaning the brush you need to use cotton swaps and swipe upwards to limit distorting the bristles, they need to stand straight up. If it can not be cleaned then the service station needs to be replaced as well.
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.