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CHAPTER 7 TROUBLESHOOTING
##764 [TX]
In ECM transmission, the allowed number of procedure signal re-
transmissions was exceeded after transmission of PPS-EOM
Cause:
The line condition is poor; as such, although PPR was received 4 times after trans-
mission of PPS-EOM and then CTC was transmitted, the other party could not
receive it correctly.
Remedy:
Increase the transmission level so that the other party may receive CTC correctly.
Cause:
The line condition is poor; as such, although PPR was received 4 times after trans-
mission of PPS-EOM and then CTC was transmitted, no significant signal was
received correctly thereafter.
Remedy:
Ask the operator of the other party to increase the transmission level so that the
signal may be received correctly.
##765 [TX]
In ECM transmission, no significant signal can be received after
transmission of PPS-EOP, and the allowed number of procedure
signal re-transmissions was exceeded
Cause:
The line condition is poor, and the other party cannot receive PPS-EOP correctly.
Remedy:
1. Increase the transmission level so that the other party may receive PPS-EOP
2. Adjust the NL equalizer so that the other party may receive PPS-EOP correctly.
3. Add an echo protect tone to the V.29 modem signal for transmission.
The line condition is poor, and the significant signal cannot be received correctly.
Cause:
Ask the operator of the other party to increase the transmission level so that the
Remedy:
signal may be received correctly.
##767 [TX]
In ECM transmission, DCN was received after transmission of
PPS-EOP
Cause:
The line condition is poor, and the other party cannot receive PPS-EOP correctly.
Remedy:
1. Increase the transmission level so that the other party may receive PPS-EOP
2. Adjust the NL equalizer so that the other party may receive PPS-EOP correctly.
3. Add an echo protect tone to the V.29 modem signal for transmission.
Cause:
The Stop key was pressed during a communication.
Remedy:
Transmit once again.
7-74
COPYRIGHT © 2001 CANON INC.
correctly.
correctly.
2000 2000 2000 2000
CANON SmartBase PC1200s/iR1200s REV. 0 DEC. 2001
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Table of Contents
Troubleshooting
