-10-MaintenancenFilter counter resetAfter replacing the filter, be sure to reset the filter coun-ter.1) Pressstto select [Filter counter reset].2) Press the [Filter counter Reset?] appears. Select Yes to con-tinue. Another confirmation dialog box appears, selectYes to reset the Filter counter.Attention•Turn off the power before you replace the air filter unit.•When attaching the air filter unit, make sure that theprojector is stable, and work in an environment that issafe, even in the event of the air filter unit dropping.•Do not operate the projector with the filters removed.Dust may accumulate on the optical elements degrad-ing picture quality.•Do not put anything into the air vents. Doing so mayresult in malfunction of the projector.•Do not wash the filters with water or any other liquidmatter. Otherwise the filters may be damaged.nAttaching the filter cover to the projectorThe supplied filter cover is designed for preventing dust accumulation on the filter when mounting the projector onthe ceiling.1) Turn over the projector.2) Remove the filter cover (bottom).3) Attaching the filter cover (supplised) to the projector.4)Attach the projector to the ceiling mount in accor-dance with the instruction manuals which come withthe ceiling mount.Attention• Please keep the filter cover (bottom) for later use.•If the Projector Mount Base (ET-PKV100B) is applied, thesupplied filter cover is unnecessary.To ceiling mountFilter cover(suppiesed)