Jv3 dumper?

[gpolcino]

Hello, my jv3-160SP have this problem like in attached. When i print in in high speed (ex. 360x720 4 pass) the plotter make lines on the print. I think that the problem is the dumper of cyan... but i think!!! And in the other pictures there is another problem... overspray on magenta, black and cyan. Maybe will be the capping, because this is very old and now i will be change it. Help me!!!

Thanks

 

[gpolcino]

I forget.... when i print in normal speed (es. 360x720 6 or 8 pass) the problem is less obvious.