Printed Image Shifting??????

[jm_mix]

I Need some help I have Some problems with the colors of the prints
and i done all the bi-directional adjustments and head adjustment and the image
are printed not so good.. i don’t know what else could be
any suggestion would be appreciated
i have attached some images so you can see what I’m talking about
one print where done bi directional and the really messed up one is done uni-directional
the material is a glossy oracal material

Thanks in Advance