Canon iR1200 Series Service Manual page 393

##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
Remedy: 1. Increase the transmission level so that the other party may
receive PPS-EOP
correctly.
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 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.
##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 correctly.
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.
T-14-77
Chapter 14
14-37