Clean
the projector's lens periodically, or whenever you notice dust or
smudges on the surface. Make sure you turn off the
projector and unplug the power cord before cleaning the
lens.
To remove dust or smudges,
gently wipe the lens with clean and dry 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 may cause a
fire.
Caution:
Do not wipe the lens
immediately after turning off the projector; otherwise, the lens
could be damaged. 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.