Canon SmartBase PC1200s Service Manual page 355

##760 [TX] In ECM transmission, no significant signal can be received after
transmission of PPS-EOM, and the allowed number of procedure
signal re-transmissions was exceeded
Cause: The line condition is poor, and the other party cannot receive PPS-EOM correctly.
Remedy: 1. Increase the transmission level so that the other party may receive PPS-EOM
2. Adjust the NL equalizer so that the other party may receive PPS-EOM cor-
3. Add an echo protect tone to the V.29 modem signal for transmission.
Cause: The line condition is poor, and the significant signal cannot be received correctly.
Remedy: Ask the operator of the other party to increase the transmission level so that the
signal may be received correctly.
##762 [TX] In ECM transmission, DCN was received after transmission of
PPS-EOM
Cause: The line condition is poor, and the other party cannot receive PPS-EOM correctly.
Remedy: 1. Increase the transmission level so that the other party may receive PPS-EOM
2. Adjust the NL equalizer so that the other party may receive PPS-EOM cor-
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.
##763 [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-EOM
Cause: The page buffer of the other party is full or is engaged; as such, although RNR
was received after transmission of PPS-EOM and then RR was transmitted, no sig-
nificant signal was received correctly thereafter.
Remedy: 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
COPYRIGHT © 2001 CANON INC.
correctly.
rectly.
correctly.
rectly.
office and/or Technical Center.
2000 2000 2000 2000
CHAPTER 7 TROUBLESHOOTING
CANON SmartBase PC1200s/iR1200s REV. 0 DEC. 2001
7-73