Ricoh AFICIO MP 6001, Service Manual, Page: 1126 / 1351

Bit Switches - 4
SM 113 D418
Fax Op
tion
Ty
pe 9
001
D41
8
G3 Switch 02 (SP No. 1-105-003)
No Function Comments
5
Use of modem rate history for
transmission using
Quick/Speed Dials
0: Disabled
1: Enabled
0: Communications using Quick/Speed Dials
always start from the highest modem rate.
1: The machine refers to the modem rate history
for communications with the same machine when
determining the most suitable rate for the current
communication.
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
1: Enabled
0: V.8/V.34 communications will not be possible.
ƒ
Do not set to 0 unless the line condition
is always bad enough to slow down the
data rate to 14.4 kbps or lower.
3
ECM frame size
0: 256 bytes
1: 64 bytes
Keep this bit at "0" in most cases.
4
CTC transmission conditions
0: After one PPR signal
0: When using ECM in non-standard (NSF/NSS)
mode, the machine sends a CTC to drop back the