Dots and depths of dot printing

The light position and the deep position, due to the random distribution, and the size of different mesh points will also be different, so as to show the changes in the level of the screen, it is worth noting that the positions of the mesh points are subjected to special calculations to ensure They will not overlap with each other, and there will be no phenomenon that the gaps between the dots are too large. This will prevent rough granularity.

When the resolution of the output device is 2400 dpi, the diameter of the minimum dot is about 10.5 μm (ie, 1/2400 inch). Although these fine dots can be exposed on the printing plate, the unstable factors in the printing process often result in missing images. .

This new type of dot calculation method uses a combination of multiple small dots to form a larger dot, and the diameter of a large dot with two or three minimum dots (each having a diameter of 10.5 microns) is 21 or 32 microns. This size of ideas is suitable for printing, but also can improve the reproducibility and stability of the printing.

The diameter of the big idea of ​​a combination of two or three smallest dots (each 10.5 microns in diameter) is 21 or 32 microns. This size of ideas is suitable for printing, but also can improve the reproducibility and stability of the printing.

Midtone section

In the midtone part, the positions of the dots are randomly arranged like FM Screening, but the depth of the layer is expressed by using the AM Screening method. That is, through the change of the dot size, these dots are very smooth in shape with advanced calculations.