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What is white ink circulation ？

First of all, white ink plays a vital role in UV printers. White ink often plays a strong auxiliary role in printer work, making colors more outstanding. However, due to the particularity of white ink, precipitation often occurs in the ink cartridge and even in the ink pipe. After precipitation, when the white ink is ejected from the nozzle, it will block the nozzle or even damage it. Sprinkler. Therefore, in our UV printer machine, a white ink circulation system is added. This system can promote the white ink to circulate in the pipe and prevent the ink from settling. In this way, when the white ink is ejected from the nozzle, it will Very smooth.

UV Printer – Print Head

The UV printer nozzle is the core component of the UV printer. It is responsible for accurately spraying ink onto the printing medium in the form of tiny ink droplets. Generally speaking, nozzles are relatively expensive, so you must be careful when using the machine to avoid damaging the nozzles.
It has a white ink circulation system that can prevent white ink from settling, better protect the nozzle and extend the service life of the printer.

working principle:

Ink supply system: The ink supply system of the UV printer includes the main ink cartridge and the second ink cartridge. The primary ink tank usually holds color ink, while the secondary ink tank holds white in
White ink circulation pipe: The white ink circulation pipe connects the second ink cartridge and the nozzle. It allows white ink to circulate between the ink head and the ink tube.
Circulation process: During the printing process, the white ink will be regularly circulated back to the second ink cartridge to prevent precipitation. This helps maintain white ink uniformity and avoid nozzle clogging.