Chapter 1414-32T-14-65T-14-66T-14-67##752 [TX] In ECM transmission, DCN was received aftertransmission of PPS-NULLCause: The line condition is poor, and the other party cannot receive PPS-NULL correctly.Remedy: 1. Increase the transmission level so that the other party mayreceive PPS-NULL correctly.2. Adjust the NL equalizer so that the other party may receivePPS-NULL correctly.3. Add an echo protect tone to the V.29 modem signal fortransmission.Cause: The Stop key was pressed during a communication.Remedy: Transmit once again.##753 [TX] In ECM transmission, the allowed number ofprocedure signal retransmissions was exceeded or a T5time-over (60 sec) condition occurred aftertransmission of PPS-NULLCause: The page buffer of the other party is full or is engaged; as such,although RNR was received after transmission of PPS-NULL andthen RR was transmitted, no significant signal was receivedcorrectly thereafter.Remedy: 1. Start G3 mode, and transmit once again (Prohibit the ECMmode).2. Decrease the transmission start speed.3. Record the protocol on a DAT or MD, and have it analyzed bythe local Canon office and/or Technical Center.##754 [TX] In ECM transmission, the allowed number of proceduresignal retransmissions was exceeded after transmissionof PPS-NULLCause: The line condition is poor; as such, although PPR was received 4times after transmission of PPS-NULL and then CTC wastransmitted, the other party could not receive it correctly.Remedy: Increase the transmission level so that the other party may receiveCTC correctly.
