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Turn  off  the  projector,  and  unplug  the AC  power  cord 
from the AC outlet.
Turn the projector over and remove the filters .
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Filter prevents  dust  from accumulating  on  the optical  elements  inside the  projector.  Should  the filters  become 
clogged  with  dust  particles,  it  will  reduce  cooling  fans’  effectiveness  and  may  result  in  internal  heat  buildup 
and adversely  affect  the life of  the projector.  If a  “Filter  warning” icon  appears  on the  screen,  clean the  filters 
immediately. Clean the filters by following the steps below.
Clean the filters softly by using a brush.
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Replace the filters properly.  Make sure that the filters 
are fully inserted to the projector.
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CAUTION
Do not operate the projector with the filters 
removed. Dust may accumulate on the optical 
elements degrading picture quality.
Do not put anything into the air vents. Doing so 
may result in malfunction of the projector.
RECOMMENDATION
  We recommend avoiding dusty/smoky environments 
when you operate the projector. Usage in these 
environments may cause poor image quality.
  When using the projector under dusty or smoky conditions, 
dust may accumulate on a lens, LCD panels, or optical 
elements inside the projector degrading the quality of a 
projected image. When the symptoms above are noticed, 
contact your authorized dealer or service station for proper 
cleaning.
✔ Note:
    When reinserting this 
filters, be sure that the 
slit part is facing the 
outer side.
Be sure to reset the Filter counter after cleaning or replacing 
the filters. 
Press the MENU button to display the On-Screen 
Menu. Use the Point ed buttons to select the Setting 
Menu and then press the Point 8 or SELECT  buttons.
Use the Point ed buttons select Filter counter and 
then press  the Point 8 or the SELECT button. Use the 
Point ed buttons to select Filter counter Reset and 
then press SELECT button. The Filter counter Reset? 
appears. Select Yes to continue.
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Resetting the Filter Counter
Filter counter
The Filter counter 
Reset? appears.
Select Yes, then 
another confirmation 
box appears.
Select Yes again 
to reset the Filter 
counter.
Another confirmation dialog box appears, select Yes to 
reset the Filter counter.
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Filters.
Cleaning the Filters
Maintenance and Cleaning