Ricoh M281 Series, Service Manual

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Bit Switches - 3
D255/D256 FAX OPTION 96 SM
5 JBIG compression method: Reception
0: Only basic supported
1: Basic and optional both supported
Change the setting when
communication problems occur
using JBIG compression.
6 JBIG compression method: Transmission
0: Basic mode priority
1: Optional mode priority
Change the setting when
communication problems occur
using JBIG compression.
7 Closed network (reception)
0: Disabled
1: Enabled
1: Reception will not go ahead if the
polling ID code of the remote
terminal does not match the polling
ID code of the local terminal. This
function is only available in
NSF/NSS mode.
Communication Switch 01 (SP No. 1-104-002)
No Function Comments
0 ECM
0: Off 1: On
If this bit is set to 0, ECM is switched off for all
communications.
In addition, V.8 protocol and JBIG compression
are switched off automatically.
1 Not used Do not change the setting.
2-3 Wrong connection prevention
method
(0,1): The machine will disconnect the line
without sending a fax message, 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 when manually dialed.
(1,0): The same as above, except that only the
last 4 digits are compared.
(1,1): The machine will disconnect the line
without sending a fax message, if the other end
Bit 3 Bit 2 Setting
0 0 None
0 1 8 digit CSI
1 0 4 digit CSI
1 1 CSI/RTI