Why is calligraphy upside down?

1, new pen. It's normal for a new pen to lose its hair occasionally. Can be used many times.

2. If there is something wrong with the quality of the pen, you can apply 502 glue to the tip of the pen. Be careful not to dehydrate the brush hairs.

3. If the used brush is not well preserved, it will lose its hair. The used brush must be cleaned and hung upside down to dry the bristles. Once the brush is opened, you can't put on the pen cap.