Clean
the projector's lens periodically, or whenever you notice dust or
smudges on the surface.
To remove dust or smudges, gently move the shutter to the
side and wipe the lens with lens-cleaning paper.
To remove stubborn smudges, moisten a soft, lint-free cloth
with lens cleaner and gently wipe the lens. Do not spray any liquid
directly on the lens.
Warning: Do not
use a lens cleaner that contains flammable gas. The high heat
generated by the projector lamp may cause a fire.
Caution:
Do not use glass cleaner or any harsh
materials to clean the lens and do not subject the lens to any
impacts; you may damage it. Do not use canned air, or the gases may
leave a residue. Avoid touching the lens with your bare hands to
prevent fingerprints on or damage to the lens surface.