P900 (European version) PiezographyPro K4 or K5 ink cart positions

What are the Pro ink placement for the P900 (Euro version which allows refillable carts)?

As this printer is the successor to the P800 and 3880 what is the print quality like? Also for digital negatives?

thanks!
Michael

It will do Pro K4 just like a 9880 (dedicated MK or PK ink)

best
-Walker