Casio XJ-UT Series User Manual page 19

 Never subject the projector to strong impact while it is projecting.
If the projector is accidentally subjected to strong impact, the projection image will momentarily go
blank. The image will reappear after some time, but it may be the wrong color or it may be
accompanied by an error message.
If the projected image is the wrong color, re-select the current input source. If this does not return the
projected image to its proper color, turn projector power off and then back on again.
If the image reappears with an error message, correct the problem in accordance with the indicator
explanations under "Error Indicators and Messages" (page 71).
 Use a power outlet near the projector. Always use the projector so that the power
cord can be easily unplugged.
 The YW-41 Wireless Adapter (included or purchased separately) supports the
2.4GHz band only.
 Keystone Correction and Image Quality
Performing keystone correction causes the image to be compressed before it is projected. This can
result distortion of the image or a loss of image quality. If this happens, change orientation of the
projector and/or screen so it conforms as much as possible to the illustration under "Placing the
Projector on a Desk or on the Floor" (page 28).
If image quality is the highest priority, turn off keystone correction and position the projector so it is
pointed straight at the screen.
 Even if your projector is still within the warranty period, you will be charged for repair if a problem is
due to running the projector non-stop for very long periods (like 24 hours) or if the projector was set
up and used without following the "Setup Precautions" (page 30).
 Use under high ambient temperature or in environments subjected to large amounts of dust, oil
smoke, tobacco smoke, or other types of smoke can shorten the replacement cycles and require
more frequent replacement of the optical engine and other components. Note that you are charged
for such replacement. For details about replacement cycles and fees, contact an authorized CASIO
service center.
 Condensation
Moving the projector from a cold room to a heated room, turning on a heater in a cold room, and other
similar conditions can cause condensation (fogging) to form on the projector lens and/or inside the
projector, which will make the projected image appear out of focus and can lead to malfunction and
other trouble. If this happens, turn off the projector and wait for a while until the condensation clears
naturally. When it does, you will be able to project images normally.
 Power Supply to External Equipment
Turning off projector power also cuts power being supplied to external equipment. Note that power
being supplied is also cut when the projector is turned off due to restarting by its self-check function
or Auto Power Off, due to some error, or for any other reason. Depending on the external equipment
being used, cut off of the power supply may cause data that is being edited to be lost or corrupted.
Make it a habit to frequently save data on external equipment being powered by the projector. Note
that CASIO COMPUTER CO., LTD. shall be held in no way liable for any loss or corruption of data.
 Disposing of batteries
Make sure that you dispose of used batteries in accordance with the rules and regulations in your local
area.
 Be sure to follow all applicable local laws and regulations, and do not dismantle the
projector when disposing of it.
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