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Maintenance
Locking the white balance
Although the projectors camera is constantly adjusting the color balance of the images
it photographs, the color balance may be disrupted, depending on the color layout of
the document, etc. If this happens, the white balance can be locked using the proce-
dures below.
1
Lay down a piece of white paper, and adjust so it fills the screen.
Adjust the camera head and arm so that the white paper fills
the screen completely.
2
Set the White balance to Lock in the
Default menu.
p.32
The white balance is locked. If you want to return to the auto adjustment, set the White
balance to Auto in the Default menu.
Notes
White balance setting to Fixed, if power is turned off, will be back to Auto.
The color of the room lighting may prevent the white balance from being adjusted to the
optimum level. In this situation, or if you want to use a certain tinting, adjust the R-level,
G-level and B-level on the Image adjustment menu
p.32
.
Using the document camera (Continued)
The air filter prevents dust and debris from getting inside the projector. Never run the
projector with the filter removed. It is recommended that the air filter is cleaned regularly.
The icon message Check the air filter for dirt. is displayed every 100 hours. (If the
usage time exceeds 100 hours, this message is displayed for 30 seconds when the image is
displayed for the first time after power is turned on. This display will be dismissed with any
operation.)
Check out the filter and any debris is found, use the following procedure for cleaning.
WARNING
Request cleaning and maintenance of a ceiling-mounted unit from your projector
dealership.
1
Unplug power cord.
2
Remove the air filter.
Pull out the air filter by taking the catch shown in the figure.
3
Clean the filter.
Carefully remove the dust and dirt from the air filter with a
vacuum cleaner or the like.
4
Replace the air filter.
Notes
Allowing dirt and dust to build up in the air filter will worsen the air circulation inside the
projector, causing the internal temperature to rise, causing the projector to stop working
or malfunction.
Insert the air filter all the way in. Leaving gaps will allow dust and dirt to get inside the
projector again.
If you wash the air filer with water, make sure to dry it completely before replacing it.
If the air filter is torn, consult with your dealer about replacing it with a new one.
Continuing to use a ripped filter will allow dust and dirt to get inside the projector.
Air filter cleaning
Maintenance
20


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