CHAPTER 13 TROUBLESHOOTINGCOPYRIGHT © 2002 CANON INC. 2000 CANON iR1600/iR2000/iR1610/iR2010 SERIES REV.0 MAR. 2002 13-225##0791 [TX/RX] During an ECM mode procedure, a signal other than a signifi-cant signal was receivedThe procedure signal is faulty.Record the protocol on a DAT or MD, and have it analyzed by the local Canon of-fice and/or Technical Center.##0792 [RX] In ECM reception, PPS-NULL between partial pages cannot be de-tectedThe line condition is poor, and PPS-NULL cannot be received.(1) Ask the operator of the other party to increase the transmission level so thatPPS-NULL may be received correctly.(2) Adjust the NL equalizer so that PPS-NULL may be received correctly.##0793 [RX] In ECM reception, no effective frame was detected while signalswere received at high speed, and a time-over condition occurredThe line condition is poor, and the other party cannot receive CFR correctly.(1) Increase the transmission level so that the other party may receive CFR cor-rectly.(2) Adjust the NL equalizer so that the other party may receive CFR correctly.The line condition is poor, and the image signal cannot be received correctly.(1) Ask the operator of the other party to increase the transmission level so that theimage signal may be received correctly.(2) Ask the operator of the other party to decrease the transmission start speed.An echo of CFR prevents reception of the training signal.(1) Provide echo remedy 3.(2) Decrease the transmission level so that an echo of the transmitted CFR will notbe received.Cause:Remedy:Cause:Remedy:Cause:Remedy:Cause:Remedy:Cause:Remedy:Cause:Remedy:##0795 [TX/RX] A fault occurred in decoding process during a communicationThe communication CODEC is busy.(1) Turn off and then on the power.(2) Replace the image processor PCB.