Causes and solutions of flying ink problem of UV printer
Causes and solutions of flying ink problem of UV printer
Flying ink is a common technical problem when using UV printers for high-precision pattern printing. Flying ink will not only affect the printing effect, but also may lead to substandard product quality. This article will analyze in detail the common causes of UV printer flying ink, and provide corresponding solutions to help users better maintain equipment and improve production efficiency.
First, what is the flying ink phenomenon?
Flying ink means that during the printing process of the UV printer, the ink fails to accurately spray to the predetermined position, but deviates from the target area, forming scattered or fuzzy lines. This phenomenon will seriously affect the printing accuracy, especially in high-precision pattern printing, flying ink will lead to pattern distortion or uneven color.
Second, the common causes and solutions of flying ink
1. The nozzle is disconnected
（1）Reason analysis:
Nozzle breakage is one of the common causes of flying ink. When the nozzle channel is blocked or the ink supply is insufficient, the ink cannot be sprayed normally, resulting in broken or empty print patterns.
（2）The solution:
Print a test strip to check the status of the nozzle.
If it is found that the line is blocked or broken, use cleaning liquid to clean the nozzle channel to ensure that the ink is smooth.
Maintain the nozzle regularly to avoid the ink drying up caused by prolonged idling.
2. The distance between the nozzle and the substrate is too high
（1）Reason analysis:
The distance between the nozzle and the substrate has a direct effect on the printing accuracy. If the distance is too high, the jet force of the ink may not be able to accurately reach the surface of the substrate, resulting in flying ink.
（2）The solution:
Adjust the height of the nozzle to ensure that the distance between it and the substrate is within a reasonable range (usually 1mm-20mm, the specific value needs to refer to the equipment manual).
The injection force of different nozzles is different, and should be adjusted according to the device model and ink characteristics.
3. The sprinkler voltage is too high
（1）Reason analysis:
The high voltage of the nozzle will cause the ink jet speed to be too fast, resulting in flying ink phenomenon. In addition, high voltage may also damage the nozzle.
（2）The solution:
Check the indicator of the nozzle board. If the indicator shows red or alarms, adjust the voltage immediately.
For modified circuit boards, it may be necessary to redesign the circuit to stabilize the voltage.
4. Static interference
Reason analysis:
In the case of dry environment and low humidity, it is easy to generate static electricity during the printing process. Static electricity can interfere with the direction of the ink jet, resulting in flying ink.
The solution:
Install a static rod on the device to eliminate static interference.
Increase the ambient humidity to reduce the possibility of static electricity.
Third, how to prevent the flying ink problem?
Regular maintenance of the equipment: including cleaning the nozzle, checking the circuit and adjusting the height of the nozzle.
Control Environmental conditions: Keep temperature and humidity appropriate to avoid static electricity.
Use high quality ink: Poor quality ink can easily lead to blockage or flying ink.
Follow the operation specifications: strictly follow the equipment instructions to avoid improper use.
Fourth, the technical development and application prospects of UV printers
With the continuous progress of UV printing technology, its application scope is increasingly wide, covering advertising printing, industrial manufacturing, art reproduction and other fields. The effective solution of the flying ink problem can not only improve the printing efficiency, but also create higher value for users. Therefore, timely investigation and solution of flying ink problems is of great significance to ensure production efficiency and product quality.
Through the above analysis, we can see that the solution of the UV printer flying ink problem needs to start from many aspects such as equipment maintenance, operation specifications and environmental control. Only by comprehensively mastering these technical points can we give full play to the performance advantages of UV printers and provide guarantee for high-quality printing.
Flying ink is a common technical problem when using UV printers for high-precision pattern printing. Flying ink will not only affect the printing effect, but also may lead to substandard product quality. This article will analyze in detail the common causes of UV printer flying ink, and provide corresponding solutions to help users better maintain equipment and improve production efficiency.
First, what is the flying ink phenomenon?
Flying ink means that during the printing process of the UV printer, the ink fails to accurately spray to the predetermined position, but deviates from the target area, forming scattered or fuzzy lines. This phenomenon will seriously affect the printing accuracy, especially in high-precision pattern printing, flying ink will lead to pattern distortion or uneven color.
Second, the common causes and solutions of flying ink
1. The nozzle is disconnected
（1）Reason analysis:
Nozzle breakage is one of the common causes of flying ink. When the nozzle channel is blocked or the ink supply is insufficient, the ink cannot be sprayed normally, resulting in broken or empty print patterns.
（2）The solution:
Print a test strip to check the status of the nozzle.
If it is found that the line is blocked or broken, use cleaning liquid to clean the nozzle channel to ensure that the ink is smooth.
Maintain the nozzle regularly to avoid the ink drying up caused by prolonged idling.
2. The distance between the nozzle and the substrate is too high
（1）Reason analysis:
The distance between the nozzle and the substrate has a direct effect on the printing accuracy. If the distance is too high, the jet force of the ink may not be able to accurately reach the surface of the substrate, resulting in flying ink.
（2）The solution:
Adjust the height of the nozzle to ensure that the distance between it and the substrate is within a reasonable range (usually 1mm-20mm, the specific value needs to refer to the equipment manual).
The injection force of different nozzles is different, and should be adjusted according to the device model and ink characteristics.
3. The sprinkler voltage is too high
（1）Reason analysis:
The high voltage of the nozzle will cause the ink jet speed to be too fast, resulting in flying ink phenomenon. In addition, high voltage may also damage the nozzle.
（2）The solution:
Check the indicator of the nozzle board. If the indicator shows red or alarms, adjust the voltage immediately.
For modified circuit boards, it may be necessary to redesign the circuit to stabilize the voltage.
4. Static interference
Reason analysis:
In the case of dry environment and low humidity, it is easy to generate static electricity during the printing process. Static electricity can interfere with the direction of the ink jet, resulting in flying ink.
The solution:
Install a static rod on the device to eliminate static interference.
Increase the ambient humidity to reduce the possibility of static electricity.
Third, how to prevent the flying ink problem?
Regular maintenance of the equipment: including cleaning the nozzle, checking the circuit and adjusting the height of the nozzle.
Control Environmental conditions: Keep temperature and humidity appropriate to avoid static electricity.
Use high quality ink: Poor quality ink can easily lead to blockage or flying ink.
Follow the operation specifications: strictly follow the equipment instructions to avoid improper use.
Fourth, the technical development and application prospects of UV printers
With the continuous progress of UV printing technology, its application scope is increasingly wide, covering advertising printing, industrial manufacturing, art reproduction and other fields. The effective solution of the flying ink problem can not only improve the printing efficiency, but also create higher value for users. Therefore, timely investigation and solution of flying ink problems is of great significance to ensure production efficiency and product quality.
Through the above analysis, we can see that the solution of the UV printer flying ink problem needs to start from many aspects such as equipment maintenance, operation specifications and environmental control. Only by comprehensively mastering these technical points can we give full play to the performance advantages of UV printers and provide guarantee for high-quality printing.
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