First, high-drop printing mode requires switching waveforms and increasing the printhead voltage to enhance the jetting force in order to achieve the high-drop effect. Operating at excessively high voltage for extended periods accelerates internal damage to the printhead, ultimately leading to a reduction in jetting force. As a result, when printing products, you may experience ink misting (fly ink), and the overall service life of the printhead will be shortened.
Second, when using high-drop printing mode, because the printhead and UV lamp are farther away from the product and the printer platform, the amount of reflected light is greater. This causes the ink on the surface of the printhead to cure more quickly. Additionally, since the printing speed in high-drop mode is slower than in flatbed printing, the reflected light lingers on the printhead surface for a longer period. Of course, the printhead does experience wear, but it's not as alarming as you might imagine. The key is to pay attention to routine maintenance during production — as has been said many times, one method is to purge the ink more frequently.
Therefore, when you are producing high-drop products, try to choose items with high added value. High-value products generate higher profits, which will help compensate for the cost of printhead wear.