Ricoh IM C300 Service Manual page 1559

4.6 BIT SWITCHES – 4
•
Do not adjust a bit switch or use a setting that is described as "Not used", as this may cause
the machine to malfunction or to operate in a manner that is not accepted by local regulations.
Such bits are for use only in other areas, such as Japan.
Default settings for bit switches are not listed in this manual. Refer to the System Parameter List printed
by the machine.
4.6.1 G3 SWITCHES
G3 Switch 00 (SP No. 1-105-001)
No Function
0 Monitor speaker during
1 communication (TX and RX)
Bit 1 Bit 0
0 0
0 1
1 0
1 1
2 Monitor speaker during memory
transmission
0: Disabled 1: Enabled
3- Not used
5
6 Dedicated G3 line mode
selection
0: Off 1: On (Dedicated)
7 Not used
G3 Switch 01 (SP No. 1-105-002)
No Function
0- Not used
3
4 DIS frame length
0: 10 bytes 1: 4
bytes
5 Not used
D0CK
Comments
(0, 0): The monitor speaker is disabled all through the
communication.
(0, 1): The monitor speaker is on up to phase B in the T.30
Setting
protocol.
Disabled
(1, 0): Used for testing. The monitor speaker is on all through
Up to Phase B
the communication. Make sure that you reset these bits after
All the time
testing.
Not used
1: The monitor speaker is enabled during memory
transmission.
Do not change the settings.
Set this bit to 1 when you wish to dedicate a line for G3.
Do not change this setting.
Comments
Do not change the settings.
1: The bytes in the DIS frame after the 4th byte will not be transmitted (set
to 1 if there are communication problems with PC-based faxes which
cannot receive the extended DIS frames).
Do not change the setting.
84
Bit Switches – 4
SM