The reason for the high price of flatbed printers is their excellent workmanship and printheads. The printheads are the highest quality part of flatbed printers. A nozzle contains about one thousand nozzles, and the entire pattern printing process is completed by these neatly arranged small nozzles. Because the nozzle is too fine (not usually visible to the naked eye), it can easily become blocked due to improper maintenance. What are the reasons for the clogging of the printer head? Xiaobian analyzes the reasons for everyone as follows.
1. The nozzle is not cleaned in time. After the ink of the nozzle has accumulated to a certain extent, it condenses on the outside to block the nozzle holes, which is also one of the most common blocking methods. UV ink is a liquid substance that is easy to volatilize and solidify when it sees light. When the nozzle sprays on the material to be printed, a small part of the ink will remain around the nozzle, which will gradually block the nozzle when it is dry. Therefore, we recommend that customers should clean the nozzles in time during use. Generally, it is best to clean the nozzles every 2 to 3 days. In addition, they should moisturize the nozzles before stopping the machine daily.
2. The filter in the print head of the universal printer is blocked and the print head does not produce ink. When the nozzle is used for a long time, especially when the ink flows in the nozzle for a short time, the ink is easily adsorbed on the filter screen, and the area where the ink flows is reduced, resulting in uneven ink discharge or blocked nozzles.
3. Frequent ink changes. Different ink viscosities and components are different. When the ink viscosity is too high, the ink fluidity will become worse, which will cause different degrees of blockage. If the ink viscosity is too low (the ink is too thin), it will cause the ink not to be sucked, and it will not be able to achieve high-quality printing results.
4. Mixed soft / hard ink. For different materials, it is necessary to replace the soft ink or hard ink. If the nozzle is not cleaned thoroughly during the replacement, the nozzle will be seriously blocked.
5. The temperature and humidity of the environment in which the machine is used are called external factors that cause nozzle blockage. We generally recommend that the universal printer work at a temperature of 20 to 28 degrees and a humidity of about 45 to 70%. High or low temperatures will also affect the normal ink ejection of the print head, which will cause the illusion of print head clogging.
6. Use poor quality or expired ink. UV inks are generally recommended for late use within three months. Because UV ink is a chemical component, flocculation and deterioration may occur for a long time. Inferior or expired ink is one of the direct causes of nozzle blockage.
7. The drive circuit of the universal printer is faulty. When the universal printer is used for a long time, the electronic components of the driving circuit may cause aging and other phenomena, or accumulation of too much dry ink, dirt, etc., may affect the voltage of the driving nozzle, which may cause the nozzle to not eject ink or discharge Ink levels are unstable.
