Canon Multimedia Projector LV-8235 UST - Manual (Page 67)

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Be sure to reset the Filter counter after replacing the Filter .
Resetting the Filter Counter
Maintenance and Cleaning
Turn off the projector, and unplug the AC power cord
from the AC outlet.
First, clean up the dust on the projector and around the
air vents.
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2
Filter prevents dust from accumulating on the optical elements inside the projector. Should the Filter 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, replace the Filter
immediately. Replace the filter by following the steps below.
Loosen the screw and remove the lamp cover and lift
the filter out of the projector.
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4
CAUTION
- Do not operate the projector with the filter 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.
- Do not wash the filter with water or any other liquid
matter. Otherwise the filter may be damaged.
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 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 center for proper cleaning.
Replacing the Filter
Press the MENU button to display the On-Screen
Menu. Use the Point  buttons to select Setting and
then press the Point  or the OK button.
Use the Point  buttons to select Filter counter and
then press the OK button. Use the Point  buttons
to select Filter counter reset and then press the OK
button. Filter counter Reset? appears. Select Yes to
continue.
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2
Filter counter
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.
3
Put the new one back into the position, and close the
lamp cover and secure the screw.
5
Connect the AC power cord to the projector and turn
on the projector.
6 Reset the filter counter.
Lamp Cover
Screw
Filter