-11-n Outer caseWipe off dirt and dust using a soft dry cloth.ò If the dirt is persistent, soak the cloth with water and wring it thoroughly before wiping. Dry off the projector witha dry cloth.ò Do not use benzene, thinner, or rubbing alcohol, other solvents, household cleaners. Using them may causedeterioration of the outer case.ò When using chemical treated dusters, follow its instruction.n Front glass surface of the lensWipe off the dirt and dust off the front surface of the lens with soft clean cloth.ò Do not use a cloth that has an abrasive surface or a cloth that is moist, oily, or covered with dust.ò Do not use excessive force when wiping the lens as it is fragile.AttentionThe lens is made of glass. Impacts or excessive force when wiping may scratch its surface.Please handle with care.n Air filter unitBefore replacing the unitWhen you perform maintenance or replacement of the parts, make sure to turn off the power and disconnect thepower plug from the wall outlet.MaintenanceClean the air filter unit in the following cases.ò When the replacement message is displayed and the filterindicator lights up due to a blockage.ò The temperature inside the projector becomes high andthe temperature indicator lights, causing theprojector turn off, due to a blockage. (When the powerif turned off, temperature indicator flashes andstandby indicator lights in red.)1) Turn off the projector, and unplug the AC power cordfrom the AC outlet.2) Clean up the dust on the projector and around the airvents.3) Press t downwards on the filter cover to release thelatch and open the filter cover.4) Pull out the air filter unit.ò Pick the tab and frame of the air filter unit, release thelock with pressing the tab rightwards in the figure,and then pull.Filter coverLatchTab Air filter unitMaintenance