I took sometime to use the PiezoFlush Solution on the cap assembly, flushing box and print heads.
Unfortunately, after cleaning everything with the piezo, and then running the cleaning pair cycle (2x) again - the print test > nozzle check did not show any discernible difference.
I have good/expert experience with this printer (it is my third StylusPro that I have owned).
Attached is a photo of the most recent nozzle check.
Every nozzle check looks the same as the one shown in this photo (always the same middle bands are missing). All other channels are perfect.
What next step would you recommend?
I look forward to your reply.