1, prepare a bottle of alcohol, the higher the concentration, the better. Pull off the tip of the small end of the marker and inject about 400 microliters of alcohol. Be careful not to inject it into the pen tip, but into the sponge in the pen tube, insert the pen tip and cap back, and buckle the big head upside down for more than an hour.

2. Buy special marker filling liquid or colored ink for filling.

Markers are also called markers. It is a drawing color pen specially used for writing or painting. It contains ink and usually has a pen cover, usually with a hard and soft nib. The pigment of marker pen is volatile and can be used for quick drawing at one time. Markers are also divided into water-based and oily inks. Water-based ink is similar to colored pen, and it contains no oil essence. Oily ink is more irritating and volatile because it contains oil essence. If the paint falls off the toy, you can use a marker to make up the color.