Ricoh Aficio FX10, Service Manual

Page: 115 / 284

4.2.4. Communication Switches
Communication Switch 00
No FUNCTION COMMENTS
0
1
Compression modes
available in receive mode
Bit 1 0 Modes
0 0 MH only
0 1 MH/MR
1 0 MH/MR/MMR
1 1 Not used These bits determine the compression capabilities to
be declared in phase B (handshaking) of the T.30
protocol.
2
3
Compression modes
available in transmit mode
Bit 3 2 Modes
0 0 MH only
0 1 MH/MR
1 0 MH/MR/MMR
1 1 Not used These bits determine the compression capabilities to
be used in the transmission and to be declared in
phase B (handshaking) of the T.30 protocol.
Cross reference
EFC compression in transmission: Communication
Switch 01, bit 1.
4-7 Not used Do not change the settings.
Communication Switch 01
No FUNCTION COMMENTS
0
ECM
0: Off 1: On If this bit is 0, ECM is switched off for all
communications.
1
EFC during transmission
0: Off 1: On If this bit is 0, EFC is switched off during transmission.
2
3
Wrong connection
prevention method
Bit 3 Bit 2 Setting
0 0 None
0 1 8 digit CSI
1 0 4 digit CSI
1 1 CSI/RTI (0,1) - The machine will not transmit if the last 8 digits
of the received CSI do not match the last 8 digits of the
dialed telephone number. This does not work for
manual dialing.
(1,0) - The same as above, except that only the last 4
digits are compared.
(1,1) - The machine will not transmit if the other end
does not identify itself with an RTI or CSI.
(0,0) - Nothing is checked; transmission will always go
ahead.
4
Operator call if no response
is received in reply to
NSF/DIS
0: Disabled 1: Enabled Set this bit to 1 if the user expects to receive phone
calls at the same number which the machine is
connected to.
5 Not used Do not change the setting.
6
7
Maximum printable page
length available
Bit 7 Bit 6 Setting
0 0 No limit
0 1 Not used
1 0 A4
1 1 Not used The setting determined by these bits is informed to the
transmitting terminal in the pre-message protocol
exchange (in the DIS/NSF frames).
SERVICE TABLES AND PROCEDURES June 10th, 1997
BIT SWITCHES
4-30