Print test on mutoh falcon outdoor ll

[decaljunkie]

Cant seem to figure this one out. mabe someone here will know!
when i run a print test my both of the square channels have no ink in the middle like if the is a bunch of nozzles missing in the middle of the print head. and on one black square channel the nozzles are missing. i have attached a image of the problem. The weird thing is that sometimes all the nozzles in the yellow will shoot in perfectly with no nozzles missing then it will start to miss nozzles in the middle again in the middle of a print. if the yellow head was bad the it would not fully shoot out all the nozzle periodically? does anyone know what could be causing this? thanks

 

[SlightlyChilled]

If you are dropping when printing could be ink stavation to the damper.Could be bad head cable. or a loose fitting somewhere

 

[decaljunkie]

I am not dropping ink when printing. the lack of yellow and black ink makes my red look pink. and my orange a peach color. i dont know if this helps but one of the dampers on the yellow and one on the black are half full. but all the other dampers look full to the top.could it be that one of the nipples from the head were the dampers sit on is broken on one side. since on black nozzle channel is working and the other is missing nozzles same with the yellow?