Ricoh D023, Service Manual, Page: 1446 / 1522

Bit Switches
SM 105 D393
Fax Op
tion
T
ype C50
00
(D
39
3)
which cannot receive the extended DIS frames).
5 Not used Do not change the setting.
6
Forbid CED/AMsam output
0: Off
1: On (Forbid output)
Do not change this setting (Default: 0: Off), unless
communication problem is caused by a CED or
ANSam transmission.
7 Not used Do not change the setting.
G3 Switch 02 [SP No. 1-105-003]
No FUNCTION COMMENTS
0
G3 protocol mode used
0: Standard and non-standard
1: Standard only
Change this bit to 1 only when the other end can
only communicate with machines that send
T.30-standard frames only.
1: Disables NSF/NSS signals (these are used in
non-standard mode communication)
1-6 Not used Do not change the settings.
7
Short preamble
0: Disabled 1: Enabled
Refer to Appendix B in the Group 3 Facsimile
Manual for details about Short Preamble.
G3 Switch 03 [SP No. 1-105-004]
No FUNCTION COMMENTS
0
DIS detection number
(Echo countermeasure)
0: 1
1: 2
0: The machine will hang up if it receives the same
DIS frame twice.
1: Before sending DCS, the machine will wait for
the second DIS which is caused by echo on the
line.
1 Not Used Do not change the settings.
2
V.8 protocol
0: Disabled
0: V.8/V.34 communications will not be possible.
Note: