Thanks for reply - today everything went to expected state, the printer prints as it should at full speed. I have no idea what happened, I've done nothing, except of computer reset (Win7), the same cable etc. Maybe in initial state after the 1st run, it requires some time to "fully" fill all lines with ink, get rid of air bubbles or anything like this...?
Now I fight with ColorBase2 to override default inner calibration state, before I start profiling. I can see some banding on some gray patches (nozzle check is ok) like paper advance would not be ok. I cannot find any tool for paper settings correction as it was LFP for 3880, is there anything similar for P800?
After the first calibration with color base 2 (I have only Color Munki), prints seem to be more than bit too warmer, however compared on stock profiles for Tetenal and Tecco papers...
If you or anyone have any experience with ColorBase2 and P800, any suggestions would be appreciated...