Canon iR1200 Series Service Manual page 403

##790 [TX] In ECM reception, ERR was transmitted after
reception of EOR-Q
Remedy: 1. Provide echo remedy 1.
2. Decrease the transmission level so that an echo is not received.
##791 [TX/RX] During an ECM mode procedure, a signal other than a
significant signal was received
Cause: The procedure signal is faulty.
Remedy: Record the protocol on a DAT or MD, and have it analyzed by the
local Canon office and/or Technical Center.
##792 [RX] In ECM reception, PPS-NULL between partial pages
cannot be detected
Cause: The line condition is poor, and PPS-NULL cannot be received.
Remedy: 1. Ask the operator of the other party to increase the transmission
level so that PPS-NULL may be received correctly.
2. Adjust the NL equalizer so that PPS-NULL may be received
correctly.
##793 [RX] In ECM reception, no effective frame was detected
while signals were received at high speed, and a time-
over condition occurred
Cause: The line condition is poor, and the other party cannot receive CFR
correctly.
Remedy: 1. Increase the transmission level so that the other party may
receive CFR correctly.
2. Adjust the NL equalizer so that the other party may receive
CFR correctly.
Cause: The line condition is poor, and the image signal cannot be
received correctly.
Remedy: 1. Ask the operator of the other party to increase the transmission
level so that the image signal may be received correctly.
2. Ask the operator of the other party to decrease the transmission
start speed.
T-14-97
T-14-98
T-14-99
Chapter 14
14-47