Preface xxi
Caution – The CAUTION signal indicates a hazardous situation could result in

minor or moderate personal injury if the user does not perform the procedure

correctly. This signal also indicates that damage to the product or other property

may occur if the user does not perform the procedure correctly.

Task Warning
Normal
operation
Equipment damage
Be sure to follow the precautions below when installing the main unit.
Otherwise, the equipment may be damaged.
• Do not block ventilation slits.
• Avoid installing the equipment in a place exposed to direct sunlight or
near equipment that becomes extremely hot.
• Avoid installing the equipment in a dusty place or a place directly
exposed to corrosive gas or salty air.
• Avoid installing the equipment in a place exposed to strong vibration.
Also, install the equipment on a level surface so that it is stable.
• The grounding wire must be class 3 or higher. Connecting it with
another grounding wire for shared grounding may cause a malfunction.
Be sure to use a single grounding path for the grounding wire.
• Do not run any cable beneath any equipment. Also, prevent cables from
becoming taut. Never disconnect any power cable from the equipment
while power is being supplied to the equipment.
• Do not place anything on top of the main unit. Do not use the main unit
as a workspace.
• Avoid exposing the equipment to rapid changes in the ambient
temperature, such as a rapid increase during transport in winter. A
rapid increase in the ambient temperature causes moisture to condense
in the equipment. Use the equipment only after the difference between
its temperature and the ambient temperature is negligible.
• Avoid installing the equipment near a copy machine, air conditioner, or
welding machine, which is noisy.
• Take preventive action to minimize static electricity at the installation
location. Note that static electricity is easily generated in some carpets
and can cause the equipment to malfunction.
• Confirm that the power supply voltage and frequency during operation
match the rated values indicated on the equipment.
• Do not insert any object into an opening in the equipment. Components
inside the equipment use high voltage. Conductive foreign matter, such
as a metal object, inserted into the equipment, may cause a short circuit
between components, resulting in fire, electric shock, or equipment
damage.
• For maintenance of the equipment, contact your authorized service
personnel.