Still white problems with new Printhead Epson SCF2000

Unfortunately, I bought a used Epson scf2000 at the beginning of this year. I was promised that everything would work except black and blue.
Well, after installing a new print head, a new capping station and damper assembly, I still have problems with white during the nozzle check. After cleaning, sometimes W3 appears completely, but sometimes W2 appears. CMYK are perfect. I have already performed ink charging and flushed the lines. Has anyone else had similar experiences?

 

Hey! I just saw your thread and am running into the exact same issue. Did you happen to figure out what the issue was?