Never used this printer, so can only offer advice based on the machines I run. It could be deviated nozzles, you head height or print gap is to high, or too much static with the material. First thing is always do nozzle test, see how it looks. If all nozzles are there, then look to see if its firing them in proper locations, with most nozzle test you would be able to tell if they are printing in proper position or if they're deviated. If all that is all clear, then check your head height. I know on my Epsons if I raise head height I have to do a feed and bi-directional calibration. If it's static, then you need to look at better ways of grounding the machine or having the stock reduce the access static.