1.The ink is not the same batch, when modulation different batches of ink, it is likely that the amount of toner is not the same, so the previous batch will be biased.
2.There are four-color, six-color, eight-color of the flatbed printer under normal circumstances, if one of the color is blocked without ink, then the effect will be biased.
3.The curve of UV flatbed printer is set wrongly , the amount of ink is not suitable, will lead to the difference between the printing effect of the color and the original, there will be color cast.
