Take off the nib: gently take off the nib by hand. If it is daily cleaning, you don't have to take off the nib every time, you can clean it directly;
Rinse with clear water, and if the pen is left for a long time, it can also be soaked in alcohol to remove the solidified ink;
Wrap the pen tip with a paper towel or handkerchief, leave a finger gap in the middle, throw out the remaining water and put it in a ventilated place to dry.
Expensive cleaning method: If you have an ultrasonic cleaning machine at home, you can clean it directly.
note:
When the nib is difficult to take out, don't take it out forcibly, otherwise it will easily damage the nib;
Never clean the pen with boiling water or overheated water, otherwise it will do harm to the pen.