How to clean a UV print head when it blocked ?

UV flatbed printer quality is very important, but maintenance can not be ignored. Cleaning UV flatbed printer nozzle in the maintenance is a very important technical work. Correctly handle the nozzle cleaning method, you can maintain a good printer nozzle, effectively extend the life of the print head, reducing equipment depreciation costs. So how to clean the printer nozzle, What should be paid attention to during the cleaning process?


preparation:
The rear chamber of the print head of the UV flatbed printer also includes a nozzle drive circuit board, so the work of protecting the drive circuit board is needed,, with the plastic wrap to keep it safe. There are several ways to clean the print head nozzles:

 

1,soaking
Application: lightly block
Necessary tools: 95% alcohol, a clean cup and a flat bottom metal containers. Prepare a small plate, put the nozzle on the it, and then into the disk some UV printer cleaning fluid, the depth of the fluid just above the nozzle. Be careful not to spill liquid on the cable plug and drive circuit board, the first soaking time of 1 to 4 hours.


2,nozzle injection pressure washing
Application: heavily block.
Necessary tools: 95% alcohol, a clean cup, a disposable syringe, disposable infusion set.Working principle: use syringes siphon effect of the pressure, put the cleaning fluid into the print head, so as to achieve the purpose of cleaning blocked print head.With a plastic tube of the infusion set, one side plug in the syringe, the other end put on the nozzle that need to be clean. Press the clean liquid from syringe to print head, pay attention to the pressure , should not be too strong, make sure not to squeeze the inside waterproofing glue.This process needs to be repeated several times until you see that each ink hole ejects a slim water column. In this way, the blocked nozzles are cleaned.

 

3,distilled water cleaning
Application: heavily block.
Necessary tools: a coded empty cartridge, a disposable syringe and a bottle of medical distilled water (also available with pure water).
Working principle: similar to the nozzle injection pressure washing.
Solution: Prepare a decoded empty cartridge, a disposable syringe and a bottle of medical distilled water, use siphon action of the syringe pressure, inject the distilled water through the cartridge hole, after a while sucked out the distilled water by the syringe , few times the ink cartridge can be cleaned.


4,ultrasonic instrument cleaning method
Application: the most serious block
Working principle: the use of ultrasonic cleaning machine to produce a strong ultrasonic, so that water molecules vibrate, the small dried ink shattered after dissolved in water, so as to achieve the purpose of cleaning.
Solution: gently put the print head into the washing machine, add pure water or special cleaning liquid, just cover the print head stainless steel edge (Be careful not to let the PCB board splash with pure water or special cleaning solution),10 to 15 hours can be quickly cleaned. The advantage is that the cleaning effect is very good, even for year blocking print head can be cleaned, the operation is also very simple. The disadvantage is that the cleaner maintenance costs is higher and the price is expensive.

 

Because the print head is very expensive, it is better try to extend the life as long as possible, I hope this article can help for the clients that want to extend the life time of print head.