Ricoh P3500M Bedienungsanleitung Seite 27

• If you plan to use an external microphone and speaker, see the manual for details about how to
use the device.
• When using an external microphone speaker, keep it away from the air outlet of the machine.
Placing an external microphone speaker too close to the air outlet can cause the audio quality to
deteriorate.
About network environment
• A poor network environment can cause delays in video streaming during meetings.
• When using a wireless network, communication quality may deteriorate or communication may be
lost, depending on the environment in which the machine is used. If these problems occur, use a
wired network instead. To switch to a wired network, you must first turn the machine off and then
turn it back on.
• When using a wireless network, radio or electromagnetic interference or weak reception may
cause the following problems to occur during meetings:
• Delays in video streaming.
• Video is stopped.
• Audio of other party cuts out.
• Synchronization between video and audio is lost.
• Audio quality deteriorates.
• Meetings are automatically ended or left.
• Delays in video streaming occur when sharing computer screen.
• Your video and the other party's video disappear and only audio is heard.
• Screen image does not display properly when the screen layout is changed.
• The attempt to update the firmware fails, or it takes an excessively long time for the update to
finish.
• The machine does not start.
• You cannot connect to other party.
Solutions
If you experience one of the problems above, take one of the following actions. The action to be
taken depends on the wireless network environment you are using:
• If IEEE802.11b and IEEE802.11g/n are in the same wireless network environment, the
IEEE802.11b connection may be used first. The recommended line speed for the machine is 1
Mbps. To use the machine at a stable line speed, we recommend using it in a wireless network
environment in which only IEEE802.11g/n is available.
• Avoid environments that have multiple wireless LAN standards.
• Turn off any wireless networking or radio devices that are not being used.
Operating Environment
23