Canon fax-phone b740 マニュアル

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Chapter 1
Introduction
1-7
Intr
oduction
– If the unit does not operate normally when you have followed the instructions in this
manual. Adjust only those controls that are covered by the operating instructions in
this manual. Improper adjustment of other controls may result in damage and may
require extensive work by a qualified technician to restore the product to normal
operation.
– If the unit has been dropped or the cabinet has been damaged.
– If the unit exhibits a distinct change in performance, indicating a need for servicing.
■ Location
• Place the unit on a flat, stable, vibration-free surface that is strong enough to support
its weight (approx. 11.2 lb./5.1 kg).
• Place the unit in a cool, dry, clean, well ventilated place.
– Make sure the area is free from dust.
– Make sure the location is not affected by extreme temperature changes, and always
stays between 50° and 90.5°F (10° and 32.5°C).
– Make sure the area’s relative humidity is always between 20% and 85%.
• Keep the unit away from direct sunlight as this can damage it. If you have to place it
near a window, install heavy curtains or blinds.
• Do not use the unit near water. Make sure that no wet or humid objects come into
contact with the unit.
• Do not use or store the unit outdoors.
• Do not install the unit near devices that contain magnets or generate magnetic fields,
such as speakers.
• If possible, place the unit near an existing telephone outlet to avoid the expense of
installing a new one.
• Place the unit near a standard 120 V AC power outlet. The socket outlet shall 
be installed near the equipment and shall be easily accessible.
• To ensure reliable operation of the unit and to protect it from overheating (which can
cause it to operate abnormally and create a fire risk), do not block the exhaust vent
and never block or cover any openings on the unit by placing it on a bed, sofa, rug, or
other similar surface. Do not place the unit in a closet or built-in installation, or near a
radiator or other heat register unless proper ventilation is provided. Install the unit
approximately 4 inches (10 cm) away from walls and other equipment.
• Do not stack boxes or furniture around the power outlet. Keep the area free so you
can reach the outlet quickly. If you notice anything unusual (smoke, strange odors,
noises) around the unit, unplug the unit immediately. Contact the Customer Care
Center.
• Do not allow anything to rest on the power cord, and do not place the unit where the
cord will be walked on. Make sure the cord is not knotted or kinked.