2017年6月27日星期二

Do You Know Why Your Printhead Always Block?

Inkjet printer are an important device for digital printing today, and various types of inkjet printers appear to meet different types of digital printing. Inkjet printers with low print speed, such as: Oric inkjet printers; printers with high print speed, such as: Epson inkjet printers; inkjet printers with wide print widths, such as: Roland inkjet printers


Inkjet printers appear in different models, greatly expanding the scope of application of inkjet printers. Large to outdoor banners, textiles and clothing, metal materials, small pillows, mobile phone shell, mug, etc. small gift industry, you can use inkjet printers to print, the application of a wide range.


Printhead is one of the most important parts of inkjet printers, printhead is good or bad, whether the normal use, directly related to the normal use of inkjet printers. Some inkjet printer printhead is particularly easy to plug, inkjet printer printhead why plug? Inkjet when the machine's printhead does not produce ink, resulting in lack of color content screen, usually called "nozzle plug", is the impact of picture quality and yield of the main factors. Of course, "plug" is also a variety of reasons, generally have the following circumstances:


1, the ink in the printhead to a certain extent after the outside of the printhead hole is blocked: the most common way of plugging, because the ink must be volatile in the air to the air in order to make the screen dry, so the ink is a volatile liquid, in the The air is volatile and clears solid. When the ink is sprayed on the fabric, it will always leave a portion of the ink around it. This part of the ink will dry slowly in the air to make the nozzle smaller or even block the printhead, but because it is outside the printhead, it is easy Clean up, which is why we often clean the printhead of the reasons.

2, the piezoelectric crystal damage: sure that the printhead can not spray ink, the general piezoelectric printhead can be used for a year or so, in the inkjet workload of many factories may also use less than a year is normal.

3, the piezoelectric crystal fatigue damage: the phenomenon is sometimes spray printhead inkjet, and sometimes spray the ink, especially in the large amount of inkjet (that is, when the dark screen) "jam" phenomenon is obvious, the best way is to replace a new printhead.

4, the printhead inside the filter blockage caused by the printhead no ink: the use of a longer time the printhead, especially in the inkjet task is not full stop at night the factory, the ink does not flow in the nozzle for a long time, easy to adsorb in the internal filter Mesh or ink on the wall, so that the flow of ink cross-sectional area will also cause the printhead no ink phenomenon, and now dedicated equipment can help you solve this problem.

5, the viscosity of the ink is too high or too low: the viscosity of the ink is too high to make the ink flow is poor, the amount of ink sprayed per unit of ink is not enough; ink viscosity is too low, that is too thin, easy in the nozzle pressure When the transistor pumped in the air, can not absorb the ink, which is sprayed out of the air; both will cause the printhead no ink phenomenon. It is important to ask the customer to store the ink environment, and it should be better to use the ink for more than 24 hours before using the ink because the ink will have a high viscosity at low temperatures and the viscosity at high temperatures Becomes very low, this viscosity is very different, once the viscosity difference between the larger ink mixed together, it will cause the phenomenon of ink can not spray.

6, the drive circuit failure: the drive circuit of the electronic device aging and accumulation of too much dry ink dirt, may affect the drive printhead voltage, causing the printhead no ink or ink instability.

7, the type of ink: some manufacturers of ink due to improper control of the amount of desiccant, dry too fast, easy to cause the ink in the external blockage, although you can clean, but the cleaning time interval is more frequent, once a long time without the nozzle and not timely When the printhead is protected, it may cause permanent damage to the printhead at the next time.

8, frequent replacement of ink: the replacement of ink in many cases may not protect the printhead, but also affect the printhead inkjet state.

9, the machine uses the ambient temperature and humidity: the general recommended temperature of 22 to 25 degrees, humidity 40 ~ 70%, high and low temperature affect the viscosity of the ink, the nozzle will produce ink phenomenon or paste the phenomenon, often mistaken Think of "printhead clogging".

So in daily use, regular and reasonable cleaning and maintenance of the printhead is necessary, if you have no way to understand, please feel free to consult us.






发帖者 时间：
标签： , , , , ,

没有评论:

发表评论

订阅： 博文评论 (Atom)