How to repair the printer whose typing effect is not good?

In the process of using the inkjet printer, we will encounter various problems and various failure problems. If there is no clear solution idea or treatment method, it will directly cause the equipment to fail to work normally and affect The normal operation of product production lines reduces factory output and work efficiency. Today, Shanghai Qianli's maintenance technical engineer will analyze with everyone how to deal with the various situations of poor typing on the inkjet printer. 1. What should I do if the inkjet printer is not clear about the characters? The inkjet printer is composed of ink circuit and circuit. After a long time of operation, it is affected by the environment on the one hand, and the internal filter, pressure buffer, solenoid valve and other components of the ink circuit system. Slowly increase, with the increase of impurities, it will lead to poor charging and poor deflection, resulting in unclear typing. 1. Generally, when we face this kind of problem, we must first suspend the printing work of the printer, and then open the nozzle protection cover to observe whether there is ink accumulation on the surface of the nozzle, charging tank, high-voltage deflection plate, phase detector, recovery tank, etc. Contaminated by ink. If the print head is very dirty, it is normal that the typing is not clear at this time. We can perform normal or quick shutdown according to the operating procedures. After the ink line of the printer is stopped and automatically cleaned, hold the cleaning pot (install a clean (Solvent or cleaning agent) flush the nozzle surface. 2. At this time, you need to pay attention to protective measures. Prepare a well-grounded metal or plastic beaker to receive the waste liquid to prevent the waste liquid from contaminating the product, machine or ground. At the same time, prevent the appearance of open flames (the ink is flammable). After the print head is cleaned, reopen the ink line and observe the ink line, recycling, and dot splitting. If it is good, cover the print head cover and start printing to complete the processing and repair of the printer's unclear printing failure. 3. Clean the nozzle, correct the modulation with automatic modulation, and ensure the correct settings, including the correct pressure value and charging value. Note that after changing or cleaning the printer, ensure that the nozzle is dry before turning on the printing function. 2. What should I do if the inkjet printer sprays half of the text? As shown in the above figure, the inkjet printer prints half of the print, either the head is not displayed, or the tail is not displayed. If it is a multi-line information content, such as three lines, there may be a top or bottom line that is not printed. , How to deal with this situation? Generally, there are two situations that can cause this problem. 1. Ink is hung in the recovery tank. According to the working principle, after the ink enters the recovery tank through the deflection plate, the charged ink droplets will be separated through the gap below the recovery tank, deflected into words and printed on the surface of the product in real time. If there is accumulated ink under the recovery tank, it will be If the ink droplets flying out of the deflection block are blocked, the inkjet printing will be incomplete. 2. Poor charging. Poor charging mainly refers to the fact that the ink droplets that need to be charged and deflected are not charged with a certain amount of electric charge according to the predetermined value, resulting in the deflection distance is not up to the standard, and the phenomenon of half-character or unsightly font is formed. At this time, we need to check the charging value and other parameters to observe the operation of the machine. In addition, we need to check whether the charging pole is damaged and whether the phase detector is working properly. 3. Insufficient high pressure. The high-voltage package will generate a 3kV-4kV electrostatic voltage field. If the high voltage is not enough, the deflected characters will be weak and unable to reach the expected flight deflection position, resulting in poor typing or half of the typing. We can use a screwdriver to arc Test or replace the high-voltage package to eliminate this problem. If you still cannot solve the printer fault after the above-mentioned process of repair, please call the maintenance engineer of Qianli in time for correct remote guidance or appointment time, and on-site repair.