To keep your
product working at its best, you should clean it several times a
year.
Caution:
Do not use a hard brush, benzene,
alcohol, or paint thinner to clean the product or you may damage
it. Do not place anything on top of the cover or use the cover as a
writing surface, or it could get permanently scratched. Do not use
oil or other lubricants inside the product or let water get inside.
Do not touch the parts shown below; otherwise a malfunction may
occur.