Knowledge of marking pens

About liquid-type ink Induction

The liquid type is often thought that the ink is only coming out as it is unlike the batting type, but the relay core is still necessary. The ink stored in the bellows is guided sequentially to the core or is returned to the tank by decompression. And, it leads to the tip little by bit.
There are also products that use the technology such as float type and push type in addition to the bellows, many when using a special ink, the mainstream seems to be the thing that still bellows.