Maintenance/replacementENGLISH - 105 Maintenance4) Attach the air filter unit to theprojector.▶z The top and bottom of the air filter unit aredifferent.(Check the arrow ( ヶヱ) direction.)▶z Perform Step 2) in reverse order.5) Attach the air filter cover to theprojector and use a Phillipsscrewdriver to tighten the air filtercover screw.▶z Perform Step 1) in reverse order.Attentionz After washing the air filter unit, dry it thoroughlybefore attaching it back to the projector. Attaching awet unit will cause an electric shock or malfunction.z Do not disassemble the air filter unit.Notez Make sure that the air filter unit is properly attachedbefore using the projector. If not properly attached,the projector will suck in dirt and dust which causesmalfunction and the power to switch off 10 minuteslater. (The time remaining until the power switchesoff is displayed in 1-minute increments.)z Replace the air filter unit with a replacement filterunit (ET-EMF300) if it is damaged or if the dirt doesnot come off even after washing.z Air filter replacement is recommended aftercleaning the unit two times.z The dust-proof properties may be reduced aftereach cleaning.Replacing the unit▶■ Air filter unitIf dirt does not come off even if the unit is maintained, it is time for the unit to be replaced.The replacement filter unit (ET-EMF300) is an optional accessory. To purchase the product, consult yourdealer.▶■ Replacement of the air filter unitAttentionz Make sure to turn off the power before replacingthe air filter unit.z When replacing the unit, make sure that theprojector is stable. Perform the replacement in asafe place where the projector will not be damagedeven if you drop the air filter unit.1) Remove the air filter cover.▶z Use a Phillips screwdriver to turn the air filtercover screw counterclockwise until it turnsfreely, and then remove the air filter cover.Air filter cover fixing screwAir filter cover2) Pull out the air filter unit.▶z Grasp the air filter unit tabs and remove the airfilter unit from the projector body.72Air filter unitTabs▶z After pulling out the air filter unit, remove anylarge foreign objects or dust present in the airfilter unit compartment and the air intake port ofthe projector body.3) Attach the separately sold replacementfilter unit (ET-EMF300) to the projector.▶z The top and bottom of the air filter unit aredifferent.(Check the arrow ( ヶヱ) direction.)▶z Perform Step 2) in reverse order.4) Attach the air filter cover to theprojector. Using a Phillips screwdriver,tighten the air filter cover screw.▶z Perform Step 1) in reverse order.Attentionz When switching on the projector, make sure thatthe air filter unit is installed. If not properly attached,the projector will suck in dirt and dust which causesmalfunction and the power to switch off 10 minuteslater. (The time remaining until the power switchesoff is displayed in 1-minute increments.)Notez The replacement cycle of the air filter unit variesgreatly depending on the usage environment.