I finally received my Epson Pro3880. It's an exchange for teaching classic photography to a few talented students.
Printer was sitting unused for months. I got all the nozzles cleared. It has the infamous PK issue. For those readers not familiar with the case, many 3880s have a problem with photo black as such the printer ink monitor is showing the normal usage of the PK but in reality the PK cart gets flushed to the maintenance tank in one quick dump without being registered by printer- and all along Epson has been claiming the issue is rare. It is what it is!
As suggested on inkjet mall's site, I was dreaming of converting this printer to Jon Cone piezography for printing " Negative and Positive " . Considering the PK is not useable in my 3880 is it possible to do only Negative or Positive with it and just let the PK to dry-out and die a slow death without affecting the rest of the print head? Does piezography system rely on PK location in 3880 ?