In early may I posted on here about streaks happening in the black ink. It is not in any of the other colors. I have a tech out here two times since then and he has replaced the black/cyan print head and the dampers each time along with the cap top the second time. It has been less than a week and the streaky lines are back in the black ink. I have only had the printer a little over a year and this last time was the 4th time a tech has been out here about this same issue. I was hoping someone on here could give me some ideas on what they think it may be.