Ricoh M281 Series Service Manual page 939

4.5 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.
4.5.1 G3 SWITCHES
No Function
0 Monitor speaker during
1 communication (TX and RX)
Bit 1 Bit 0
0 0 Disabled
0 1 Up to Phase B
1 0 All the time
1 1 Not used
2 Monitor speaker during memory
transmission
0: Disabled 1: Enabled
3-5 Not used
6 Dedicated G3 line mode selection
0: Off 1: On (Dedicated)
7 Not used
SM
G3 Switch 00 (SP No. 1-105-001)
(0, 0): The monitor speaker is disabled all
through the communication.
(0, 1): The monitor speaker is on up to
Setting
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.
Set this bit to 1 when you wish to dedicate a
line for G3.
Do not change this setting.
G3 Switch 01 (SP No. 1-105-002)
105
Bit Switches - 4
Comments
D255/D256 FAX OPTION