the projector's air filter or vents if they get dusty, or if you
see a message telling you to clean them.
Clean the air filter immediately when the projector
displays a message indicating high temperatures inside the
projector. It is recommended that you clean the filter every 5000
hours. Clean the filter and vents more frequently if you are using
the projector in a dusty or smoky environment.
If you do not perform regular
maintenance, the projector will display a high temperature warning.
Do not wait until this message appears to clean your air filter and
vents, as prolonged exposure to high temperatures can reduce the
life of your projector.