Canon iR1200 Series Service Manual page 388

Chapter 14
##752 [TX]
Cause:
Remedy:
Cause:
Remedy:
##753 [TX]
Cause:
Remedy:
##754 [TX]
Cause:
Remedy:
14-32
T-14-65
In ECM transmission, DCN was received after
transmission of PPS-NULL
The line condition is poor, and the other party cannot receive PPS-
NULL correctly.
1. Increase the transmission level so that the other party may
receive PPS-NULL correctly.
2. Adjust the NL equalizer so that the other party may receive
PPS-NULL 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.
T-14-66
In ECM transmission, the allowed number of
procedure signal retransmissions was exceeded or a T5
time-over (60 sec) condition occurred after
transmission of PPS-NULL
The page buffer of the other party is full or is engaged; as such,
although RNR was received after transmission of PPS-NULL and
then RR was transmitted, no significant 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.
T-14-67
In ECM transmission, the allowed number of procedure
signal retransmissions was exceeded after transmission
of PPS-NULL
The line condition is poor; as such, although PPR was received 4
times after transmission of PPS-NULL and then CTC was
transmitted, the other party could not receive it correctly.
Increase the transmission level so that the other party may receive
CTC correctly.