Epson printing black lines

[Drix Productions]

I just refilled the cart in my epson EF-3010 (black, blue and yellow) the blue and yellow are fine but now the black is printing tiny lines around any areas of black. I've cleaned the nozzles about 4 times and cleaned the head. Is this just temporary from refilling the ink? Its never done this before. I'm wondering if there is anything else I can do or if I just have to wait for the ink to settle?
Thanks!