The principle of small character inkjet printer and the reason and treatment method of charging ink dots

Principle of small character inkjet printer. A certain pressure of ink is ejected from the nozzle. The crystal vibrating rod vibrates according to the required frequency (generally constant) and amplitude. The ejected ink is divided into dots (ink droplets) and then the ink droplets are charged as needed. Ink droplets charged with different amounts of electricity are deflected by the force of the electric field in a high-voltage electric field. Then move through the product. The graphic information we need is formed. Principle of small character cij printer. A certain pressure of ink is ejected from the nozzle. The crystal vibrating rod vibrates according to the required frequency (generally constant) and amplitude. The ejected ink is divided into dots (ink droplets) and then the ink droplets are charged as needed. Ink droplets charged with different amounts of electricity are deflected by the force of the electric field in a high-voltage electric field. Then move through the product. The graphic information we need is formed. So how can we have a good charge? The printers are all grounded, and the ink is conductive. Therefore, if the strength (amplitude) of the crystal vibrating rod is not enough, the ink dots are not easy to form. Such ink dots cannot be charged in the charging tank, because the ink dots cannot be separated, which is equivalent to grounding and cannot be charged at all; If the strength (amplitude) is too large, the ink dots have been broken and become dots. Such an ink dot cannot be charged in the charging tank at all, because it is an isolated ink dot. When can I charge it up? It is charging at the moment when the ink dots are about to separate, and then the ink dots are separated immediately, so that it can be charged and the battery can stay on the ink dots. In order to ensure good charging, the cij printer has a circuit to detect charging, also called phase detection. If the charging is not good, it will report the charging ink dot detection failure. So what is the cause of the charging ink dot detection failure? 1. The split is not good. The reasons are improper modulation voltage, improper pressure, abnormal ink viscosity, or even the crystal shaker is broken. 2. The ink is deteriorated, and the water in the ink affects charging. 3. There is a problem with the charging point and the phase detection circuit. The charging slot is dirty and ink is stuck. The charging slot is broken. So how to deal with the charging ink dot detection failure? We generally deal with it from simple to complex. 1. Check whether the split is normal. Adjust the modulation voltage if it is abnormal, and observe the change. 2. Check whether the charging tank is dirty. Clean if dirty. 3. Check whether the set value of ink viscosity is too different from the current value? The viscosity of the ink can be judged. If the fault has not been eliminated after the above treatment, please contact our company's engineer, we will come to the door for repair service as soon as possible.

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