Error Codes
D418 24 SM
3. TROUBLESHOOTING
3.1 ERROR CODES
If an error code occurs, retry the communication. If the same problem occurs, try to fix the
problem as suggested below. Note that some error codes appear only in the error code
display and on the service report.
Code Meaning Suggested Cause/Action
0-00
DIS/NSF not detected
within 40 s of Start being
pressed
Check the line connection.
Check the NCU - FCU connectors.
The machine at the other end may be
incompatible.
Replace the NCU or FCU.
Check for DIS/NSF with an oscilloscope.
If the rx signal is weak, there may be a bad
line.
0-01
DCN received
unexpectedly
The other party is out of paper or has a
jammed printer.
The other party pressed Stop during
communication.
0-03
Incompatible modem at
the other end
The other terminal is incompatible.
0-04
CFR or FTT not received
after modem training
Check the line connection.
Check the NCU - FCU connectors.
Try changing the tx level and/or cable
equalizer settings.
Replace the FCU or NCU.
The other terminal may be faulty; try sending
to another machine.
If the rx signal is weak or defective, there may
be a bad line.
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