Canon GP160DF, Service Manual

Page: 619 / 797

5-31
CHAPTER 5 SELF DIAGNOSIS
Cause
• The line condition is poor and the other
party’s machine can not properly receive
EOR-EOP.
• The stop button was pressed during com-
munications.
Countermeasure
• Raise the modem output level in #2 MENU
parameter 007, so the other party’s
machine can properly receive EOR-EOP.
• Resend.
##0787 [TX] DCN received after EOR-EOP output
Cause
• The other party’s machine’s page buffer is
full, or RNR was received after output of
EOR-EOP because the machine was in
use, and after RR output a significant signal
could not be properly received.
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.
##0788 [TX] Limit for the number of protocol signal re-transmissions is exceeded or T5 time
limit (60 seconds) is exceeded after EOR-EOP output
Cause
• 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.
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.
##0789 [TX] ERR received after EOR-EOP output