Ricoh Aficio MP C3001 Service Manual page 1674

Bit Switches
ECM frame size selection at
3 transmitting
0: 256byte, 1: 64byte
DIS detection times for echo
4 prevention
0: 1 time, 1: 2 times
CTC transmission selection
5 0: PPRx1
1: PPRx4
Shift down setting at receiving
6 negative code
0: OFF, 1: ON
7 Not used
IP Fax Switch 04 [SP No. 1-111-005]
No. FUNCTION
0
1
TCF error threshold
2
3
4-7 Not used
IP Fax Switch 05 [SP No. 1-111-006]
No. FUNCTION
Modem bit rate setting for transmission
0-3
Sets the modem bit rate for transmission. The default is "0110" (14.4K bps).
D393
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
Sets the TCF error threshold level.
[00 to 0f]
The default is "1111" (0fH).
Do not change these settings.
COMMENTS
126 SM