How to do a manual or physical head clean using a cleaning swab 

Hi one of my guys used DTF UV cleaning solution to clean print our ecosolvent xp600 machine, after manual pump and auto clean we get a perfect nozzle print but when you command a print, inks smudges on the printhead

Добрый день. Проблема с белым цветом, плохие тесты. Голова и демпферы поменяли, но проблема не решена. В чем может быть причина?

My red ink isn't coming at all, could it be the dampers

please tutorials on how to to solve lines in the print out