Canon SmartBase 1270D Service Manual page 366

CHAPTER 7 TROUBLESHOOTING
##779 [TX] In ECM transmission, ERR was received after transmission of
EOR-MPS
Cause: The line condition is poor, and the other party cannot often receive the image
signal correctly.
Remedy: 1. Increase the transmission level so that the other party may receive the im-
2. Adjust the NL equalizer so that the other party may receive the image signal
Cause: The other party malfunctioned because of an echo.
Remedy: 1. Using a manual call, press the Start button after hearing the 1st DIS from the
2. To prevent response to the 1st DIS from the other party, put a relatively long
3. Ask the operator of the other party to provide echo remedy 1.
4. Ask the operator of the other party to decrease the transmission level so
##780 [TX] In ECM transmission, no significant signal can be received after
transmission of EOR-EOM, and the allowed number of procedure
signal re-transmissions was exceeded
Cause: The line condition is poor, and the other party cannot receive EOR-EOM
correctly.
Remedy: 1. Increase the transmission level so that the other party may receive EOR-
2. Adjust the NL equalizer so that the other party may receive EOR-EOM
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 cor-
Remedy: rectly.
Ask the operator of the other party to increase the transmission level so that
the signal may be received correctly.
##782 [TX] In ECM transmission, DCN was received after transmission of
EOR-EOM
Cause: The line condition is poor, and the other party cannot receive EOR-EOM
correctly.
Remedy: 1. Increase the transmission level so that the other party may receive EOR-
2. Adjust the NL equalizer so that the other party may receive EOR-EOM
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.
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COPYRIGHT © 2002 CANON INC.
age signal correctly.
correctly.
other party.
pause to the telephone number when registering an auto-dialing number.
that the other party will not receive an echo.
EOM correctly.
correctly.
EOM correctly.
correctly.
2000 2000 2000 2000 CANON SmartBase PC1210D/1230D/1270D REV. 1 MAR. 2002