To improve the color saturation, I blocked the sunlight with my body. The blue background came straight from the camera.
为了降低光饱和的程度，我用身体挡住了阳光。
2
If the nozzle is blocked, then print out the color is not uniform, it will result in the depth of the road, so to ensure that the nozzle is in good print, ink system will not be blocked.