Ricoh A250 Service Manual page 527

Switch 03
No FUNCTION
0 Initial Tx modem rate
to Bit 3 2 1 0 Setting (bps)
3
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1
Other settings:
4-5 Not used
6 AI short protocol
0: Off
1: Disabled
7 Not used
Switch 04
No FUNCTION
0 Inch-mm conversion before tx
1 Bit 1 Bit 0 Setting
0 0 Inch-mm
conversion
available
0 1 Inch only
1 0 Not used
1 1 Disabled
2 DIS/NSF detection method
to Bit 3 Bit 2 Setting
3 0 0 First DIS or
NSF
0 1 Second DIS or
NSF
1 0 Not used
1 1 Disabled
SM
DEDICATED TRANSMISSION PARAMETERS
If training with a particular remote terminal always
takes too long, the initial modem rate may be too
Not used high. Reduce the initial Tx modem rate using
2,400 these bits.
4,800
7,200 For the settings 14.4 or kbps slower, Switch 04 bit
9,600 4 must be changed to 0.
12,000
Note: Do not use settings other than listed on the
14,400
16,800 left.
19,200
21,600
If the setting is 'Disabled', the bit switch setting is
24,000
used.
26,400
28,800
31,200
33,600
Disabled
Not used
Do not change the settings.
Refer to Appendix B in the Group 3 Facsimile
Manual for details about AI Short Protocol.
If the setting is 'Disabled', the bit switch setting is
used.
Do not change the settings.
The machine uses inch-based resolutions for
scanning. If "inch only" is selected, the printed
copy may be slightly distorted at the other end if
that machine uses mm-based resolutions.
If the setting is 'Disabled', the bit switch setting is
used.
(0, 1): Use this setting if echoes on the line are
interfering with the set-up protocol at the start of
transmission. The machine will then wait for the
second DIS or NSF before sending DCS or NSS.
If the setting is 'Disabled', the bit switch setting is
used.
4-65
COMMENTS
COMMENTS
A250