Ricoh B121 Service Manual page 582

4.6.4 WIRELESS LAN TROUBLESHOOTING NOTES
Communication Status
Wireless LAN communication status can be checked with the UP mode "W.LAN
Signal" in the Maintenance menu. This can also be checked using the Web Status
Monitor or Telnet.
The status is described on a simple number scale.
Status Display
Good
Fair
Poor
Unavailable
Communication status can be measured only when the infrastructure mode is
being used.
Channel Settings
If a communication error occurs because of electrical noise, interference with other
electrical devices, etc., you may have to change the channel settings.
To avoid interference with neighboring channels, it is recommended to change by 3
channels. For example, if there are problems using channel 11 (default), try using
channel 8.
Channel 1
MHz 2,412
B622
Communication Status
76 ~ 100
41 ~ 75
21 ~ 40
0 ~ 20
25MHz
2 3 4 5
2,437
25MHz
6 7 8 9
20
10 11 12 13
2,462
B622D916.WMF
SM