Thanks for the additional information.
Have you already tried cleaning the capping station, flushing box, wiper blade and bottom of the print head?
If not, I suggest giving that a try, but otherwise, based on the information and images you provided, I believe you are dealing with an electrical issue in the printer, possibly the print head cable or something with the main board (?)
Please let me know if there’s anything else I can help you with, and please keep me posted with this strange printer issue- I’m very curious!
Best regards~ Dana