When referring to the heads of uv printers, they often talk about the speed, accuracy, service life, and price of the heads, but ignore the technical indicators such as the printing width, ignition frequency, and injection force of the heads. Among them, the spray force is easier to ignore, and this also directly affects the range and effect of printing materials.
The ejection force of the head refers to the distance from the ink ejected from the head to the surface of the material. The stronger the jet force, the higher the printing height from the material, the higher the range of compatible materials, and the less likely it is to scratch the head.
Take the G5i head as an example:
1. High-precision mode printing
Control the injection range of the head between 1-2 mm;
2. Production mode printing
Control the injection range of the head between 3-5mm
3. Normal mode printing
Control the injection range of the head between 5-8mm
4. Print in draft mode
Control the injection range of the head between 8-15mm
It should be noted that G5i heads support voltage regulation enhancement, but some heads cannot. This should be clear when understanding the uv printer head, so as to avoid finding some materials that cannot be printed in practice.
If the spray force of the uv printer head is insufficient, it cannot support printing in high-speed mode, nor can it print after raising the distance, which will cause the problem of ink flying. When selecting equipment, try to choose heads that support grayscale gradients and strong spraying power.