Ricoh M281 Series Service Manual page 952

Bit Switches - 5
0 Effective field limitation for G3
standard function information
0: OFF, 1: 4byte (DIS)
1 Switching between G3 standard
and G3 non standard
0: Enable switching
1: G3 standard only
2 Not used
3 ECM frame size selection at
transmitting
0: 256byte, 1: 64byte
4 DIS detection times for echo
prevention
0: 1 time, 1: 2 times
5 CTC transmission selection
0: PPRx1
1: PPRx4
6 Shift down setting at receiving
negative code
0: OFF, 1: ON
7 Not used
No. Function
0-3 TCF error threshold
4-7 Not used
No.
D255/D256 FAX OPTION
IP Fax Switch 04 (SP No. 1-111-005)
Sets the TCF error threshold level. [00 to 0f]
The default is "1111" (0fH).
Do not change these settings.
IP Fax Switch 05 (SP No. 1-111-006)
Function
Limits the effective field for standard G3
function information.
Enables/disables switching between G3
standard and G3 non-standard.
Do not change this setting.
Selects the ECM frame size for sending.
Sets the number of times for DIS to detect
echoes.
When "0" is selected, the transmission
condition is decided by error frame
numbers.
When "1" is selected, the transmission
condition is based on the ITU-T method.
Selects whether to shift down when
negative codes are received.
Do not change this setting.
Comments
Comments
118 SM