G3 Switches - Ricoh Aficio MP2550B Service Manual

Communication Switch 1C (SP No. 1-104-029)
No Function
2-7 Not used
Communication Switch 1D - Not used (do not change the settings)
Communication Switch 1E - Not used (do not change the settings)
Communication Switch 1F - Not used (do not change the settings)

4.3.5 G3 SWITCHES

No Function
Monitor speaker during
communication (tx and rx)
Bit 1 Bit 0
0 0 Disabled
0
1
0 1 Up to Phase B
1 0 All the time
1 1 Not used
Monitor speaker during memory
2 transmission
0: Disabled 1: Enabled
3-7 Not used
SM
Do not change the settings.
G3 Switch 00 (SP No. 1-105-001)
(0, 0): The monitor speaker is disabled all
through the communication.
Setting
(0, 1): The monitor speaker is on up to
phase B in the T.30 protocol.
(1, 0): Used for testing. The monitor
speaker is on all through the
communication. Make sure that you reset
these bits after testing.
1: The monitor speaker is enabled during
memory transmission.
Do not change the settings.
101
Bit Switches
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