Casio XJ-UT331X User Manual page 11

Other
*
Caution
Allowing dust to build up inside the projector by
not cleaning it for long periods creates the risk of
fire and accident, and can cause loss of
projection luminosity. Contact your original
dealer or authorized CASIO service center once
a year about having the interior of the projector
cleaned. Note that you will be charged for
cleaning.
 Be sure to follow all applicable local
laws and regulations, and do not
dismantle the projector when
disposing of it.
11