How to clean the led writing board

1. If it is just a small area of a word you want to modify or wipe, wipe it with dry paper towel, preferably after the ink is dried.
2. If it is a large area you want to clean, you can use a damp cloth to wipe it at first (please DO NOT use dripping wet cloth), then wash away the phosphor on the cloth and wrung it dry, after then wipe the board again, and this time it can be basically clean. Finally, you can use a dry paper towel to wipe the board in order, and it will be completely clean. It can be faster if you use the glass cleaner to spray on the board when you do the cleaning.

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