If you encounter holidays and do not use the nozzle for a long time, you should take out the UV printer nozzle, repeatedly clean the nozzle with a special cleaning solution, and ensure that there is no ink inside, then pack it in a plastic bag.
At the same time, it is recommended to conduct printing tests and normal cleaning before daily operations. When the printed color is uneven or unstable, clean it to make it darker or have different brightness. Please use the same settings to print the same data. And manually clean regularly according to your usage frequency.