COPYRIGHT © 2001 CANON INC.
2000 2000 2000 2000
CANON SmartBase PC1200s/iR1200s REV. 0 DEC. 2001
CHAPTER 7 TROUBLESHOOTING
7-72
##757 [TX]
In ECM transmission, DCN was received after transmission of
PPS-MPS
The line condition is poor, and the other party cannot receive PPS-MPS correctly.
1. Increase the transmission level so that the other party may receive PPS-MPS
correctly.
2. Adjust the NL equalizer so that the other party may receive PPS-MPS correctly.
3. Add an echo protect tone to the V.29 modem signal for transmission.
The Stop key was pressed during a communication.
Transmit once again.
##758 [TX]
In ECM transmission, the allowed number of procedure signal re-
transmissions was exceeded or a T5 time-over (60 sec) condition
occurred after transmission of PPS-MPS
The page buffer of the other party is full or is engaged; as such, although RNR
was received after transmission of PPS-MPS and then RR was transmitted, no sig-
nificant signal was received correctly thereafter.
1. Start G3 mode, and transmit once again (Prohibit the ECM mode).
2. Decrease the transmission start speed.
3. Record the protocol on a DAT or MD, and have it analyzed by the local Canon
office and/or Technical Center.
##759 [TX]
In ECM transmission, the allowed number of procedure signal re-
transmissions was exceeded after transmission of PPS-MPS
The line condition is poor; as such, although PPR was received 4 times after trans-
mission of PPS-MPS and then CTC was transmitted, the other party could not re-
ceive it correctly.
Increase the transmission level so that the other party may receive CTC correctly.
The line condition is poor; as such, although PPR was received 4 times after trans-
mission of PPS-MPS and then CTC was transmitted, no significant signal was re-
ceived correctly thereafter.
Ask the operator of the other party to increase the transmission level so that the
signal may be received correctly.
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