You could select the objects with the Direct Select tool, then inspect them with the Appearance palette. Something might be obvious there.
..but I’m not sure that’s what your issue is.
Do you mean the black lines, or maybe the banding inside the gradient.
If it’s the banding in the gradient, it’s likely that the gradient is expanded. That’s not necessarlily a problem. You should do a test print to see if there actually is an issue, if this is what you’re talking about.
Vince
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