In the digital printing industry, the digital printing print-heads is the key component that determines the printing effect. In the actual operation process, our company sometimes encounters the problem of customer feedback: After cleaning the print-heads of the digital printing machine, the pattern color will change when printing again?
Before answering this question, it is necessary to understand the working principle of the digital printing machine. The print-heads precisely controls the injection of digital printing ink droplets to achieve a fine reproduction of various colors. When the print-heads works for a long time, it may be due to factors such as dry digital printing ink, blockage of impurities, resulting in poor inkjet or reduced injection accuracy, at this time, it needs to be cleaned. During the cleaning process, although the blockage can be effectively removed, it may also have a small impact on the internal structure of the print-heads, such as changing the shape of the ink channel or removing the original attached ink layer, which may lead to subtle changes in the parameters such as the amount of ink jet and the injection position, thus affecting the final color output. From the structure and working principle of the equipment analysis, similar problems mostly appear in the four-color arrangement up and down and relatively few inkjet equipment. Because the ink is a volatile liquid, the ink dries quickly, and in the case of a long cleaning time, the permeability of the output medium is strong, and the inkjet pattern is easy to become shallow.
If it is caused by cleaning the print-heads, so in the printing process as far as possible not to clean the print-heads, we need to check the status of the print-heads before printing, necessary to clean, as soon as possible or separate cleaning, to avoid color difference. There is also a case that the ink drying speed is faster, if this is the case, the user is unable to change, you can reflect to BYDI, our professional after-sales team will repair or replace the print-heads within the shelf life why the digital printing machine after cleaning the print-heads will change color? In short, the digital printing machine print-heads after cleaning the map discoloration is not an accident, but a comprehensive problem involving multiple links. Only by deeply understanding the reasons behind it and taking targeted preventive measures can we effectively ensure the consistency and stability of printing quality. Usually pay attention to observe the wear of the print-heads in long-term use, and replace it if necessary to maintain stable print quality. Our after-sales team has a detailed printing print-heads maintenance manual, welcome to telephone consultation.Dee Dee WA/VX:18368802602 Email : sales01@boyinshuma.com