Canon GP160DF Service Manual page 618

CHAPTER 5 SELF DIAGNOSIS
##0783 [TX] Limit for the number of protocol signal re-transmissions is exceeded or T5 time
limit (60 seconds) is exceeded after PPS-EOM output
• The other party's machine's page buffer is
full, or RNR was received after output of
PPS-EOM because the machine was in
use, and after RR output a significant signal
could not be properly received.
##0784 [TX] ERR received after EOR-EOM output
• The line condition is poor and frequently the
other party's machine can not properly
receive the image signal.
• The other party's machine malfunctions due
to echo.
##0785 [TX] A significant signal can not be detected and the limit for number of protocol sig-
nal re-transmissions is exceeded after EOR-EOP output
• The line condition is poor and the other
party's machine can not properly receive
EOR-EOP.
• The line condition is poor and the signal
can not be received properly.
5-30
Cause
Cause
Cause
Countermeasure
(1) Set ECM Tx to "OFF" in the user mode
data registration's Tx settings.
(2) After registering one-touch or coded dial-
ing in the user mode, lower Tx speed set-
ting using detailed settings.
Countermeasure
(1) Raise the modem output level in #2
MENU parameter 007, so the other
party's machine can properly receive the
image signal.
(2) Adjust the NL equalizer in #2 MENU
parameter 005, so the other party's
machine can properly receive the image
signal.
(1) Refer to #1 SSSW-SW03 for echo coun-
termeasures.
(2) When registering in autodial, add a long
pause after the telephone number so
there will be no response to the other
party's first DIS.
(3) When calling manually, press the start
button after you have heard the other
party's first DIS.
(4) Have the other party lower the output
level so the other party's machine will not
receive echoes.
Countermeasure
• Raise the modem output level in #2 MENU
parameter 007, so the other party's
machine can properly receive EOR-EOP.
• Have the other party's machine's output
level raised so the signal can be received
properly.