Replace quality ink with poor quality ink
In the process of the uv printing ink is indispensable, but some users buy some ink middlemen, put the high quality uv ink replacement became cheap inferior uv ink, although the price is cheap, but greatly shorten the life of the printhead, cause the printhead can be used for two or three years, less than half a year to jam scrap, do more harm than good. And the replacement of UV ink will also lead to serious color difference, need to re-do the curve, UV lamp curing is not complete and many other problems.
Maintenance operation under power condition
Some users do not turn off the power or cut off the total power under the condition of the device to remove the UV flatbed printer circuit. This behavior will damage the service life of each system and harm the sprinkler head. If you want to repair, please confirm that the power has been turned off.
Use poor quality cleaning solution
Clean the head with inferior cleaning solution. The printhead is very easy to be polluted and wear, to use the manufacturer specified nozzle type of cleaning liquid, because different sprinkler head cleaning liquid is different, blind use of other cleaning liquid will bring great risk to sprinkler head.
Ignoring the UV flatbed printer ground wire
Flatbed UV printer printing is affected by static electricity is relatively large, need to often check the connection of the ground wire, it is best to separate a ground wire for the device.
Hand power wash printhead
When the head is stopped cleaning, if the head is slightly blocked, you can use the cleaning liquid needle and other tools to slightly clean the nozzle, not strong cleaning.
Soak cleaning printhead
The cleaning liquid is a corrosive liquid. If the head is immersed in the cleaning liquid for a long time, it can be more effective and clear stains. However, if the time exceeds 24 hours, the head hole itself will be affected. Generally, the soaking time is controlled in 2-4 hours.
The power supply is not turned off when clean printhead
Do not pay attention to maintaining circuit boards and other internal systems during cleaning. Turn off the power when cleaning, and be careful not to let water touch the circuit board and other internal systems.
Sonic cleaning printhead
Use ultrasonic cleaning machine to clean head for a long time. It will have a bad influence on the printhead. But if the blockage is serious and ultrasonic cleaning is needed, the cleaning time is 3 minutes.