User's Manual

Do not install in the following locations that may result in damage
● A location subject to dr
amatic changes in temperature or
humidity
● A location near equipment that generates magnetic or
electromagnetic waves
● A laboratory or location where chemical reactions occur
● A location exposed to corrosive or toxic gases
● A location that may warp from the weight of the machine or
where the machine is liable to sink (a carpet, etc.)
Avoid poorly ventilated locations
This machine gener
ates a slight amount of ozone, etc. during normal use. Although sensitivity to ozone, etc.
may vary, this amount is not harmful. Ozone, etc. may be more noticeable during extended use or long
production runs, especially in poorly ventilated rooms. It is recommended that the room where the machine
operates be appropriately ventilated to maintain a comfortable working environment. Also avoid locations
where people would be exposed to emissions from the machine.
Do not install in a location where condensation occurs
Water droplets (condensation) may form inside the machine when the room where the machine is installed is
heated rapidly, and when the machine is moved from a cool or dry location to a hot or humid location. Using
the machine under these conditions may result in paper jams, poor print quality, or damage to the machine. Let
the machine adjust to the ambient temperature and humidity for at least 2 hours before use.
When using wireless LAN (MF249dw / MF247dw)
● Set the machine at a distance of 164´ (50 m) or less from the wireless LAN router.
● Do not set machine in a location where any object blocks communication. The signal may be degraded when
passing through walls or oors.
● Keep the machine as far as possible from digital cordless phones, microwave ovens, or other equipment that
emit radio waves.
In altitudes of above sea level 3,000 m or higher
Machines with a hard disk may not operate properly when used at high altitudes of about 3,000 meters above
sea level, or higher.
Connecting the Telephone Line
This machine conforms to an analog telephone line standard. The machine can be connected to the public
switched telephone network (PSTN) only.
If you connect the machine to a digital telephone line or a dedicated telephone line, it might impede proper
operation of the machine and could be the cause of damage. Make sure to conrm a type of telephone line
before connecting the machine.
Contact your optical ber line or IP telephone line service providers if you want to connect the machine to those
telephone lines.
Important Safety Instructions
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