Is this a damper issue?

[heyskull]

Is this a damper issue, as it only shows on some colours at the left hand side of a large width print?

Thanks
SC

 

[Zoogee World]

Does it do it on all medias you print on or just one specific kind? Doesn't really appear to be a damper problem, as it is were it, you'd expect it to be very faded or have fine lines, but those lines are very thick, my guess is that maybe the edge of the media is lifting slightly and it can't print cleanly on it?