1. Since the inkjet printer is grounded, and the ink of the small character printer is electrically conductive, if the amplitude of the crystal shock bar of the printer is not enough, the ink dots are not easily formed, which will result in ink. The point is not charged in the charging slot;

2. If the amplitude of the crystal rod is too large, the ink dots are broken and become one point. Such an ink dot cannot be charged in the charging tank because it is an isolated ink dot.

Therefore, to carry out normal charging of the printer, it is necessary to carry out the moment when the ink dots are to be separated, and then the ink dots are immediately separated, so that the electricity can be charged and the electric power can be left on the ink dots. Of course, in order to ensure good charging, the printer will be equipped with a circuit for detecting charging, called phase detection. When the charging is not good, the charging ink dot detection failure will be reported.