Cleaning the Projection Window
Clean the projection window periodically, or whenever you notice dust or smudges on the surface.
To remove dust or smudges, gently wipe the projection window with lens-cleaning paper.
To remove stubborn smudges, moisten a soft, lint-free cloth with lens cleaner and gently wipe the projection window.
Do not use a lens cleaner that contains flammable gas. The high heat generated by the projector lamp may cause a fire.
Do not used canned air, or the gases may leave a residue.