The printer has an ultra-high voltage trip problem. The nozzle has been cleaned and can not be solved. Generally, there are several reasons. If you look at the phenomenon carefully, you can eliminate the problem:

1. The print head should not only be clean, but also dry.

2. Whether it is tripped with high voltage, if it is, it is necessary to re-calibrate the high voltage, it can not be solved, in this case, the high voltage package should be replaced under normal circumstances.

3. If it is high voltage, etc., it will trip only after high voltage leakage. At this time, it is necessary to carefully check whether the high voltage line on the nozzle is damaged and whether the high voltage resistor is burned out. Listen carefully to the sound of squeaking during high voltage calibration.

4. If the fault is not solved, you can use the meter to measure the voltage of the high-voltage input on the IO board, and it is stable. If the board is broken, you have to change the board.

5. How is the nozzle grounding condition, the ink dot splitting is good, and the charging is normal.