Troubleshooting; Error Codes - Ricoh M0A0 Service Manual

3. Troubleshooting

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
0-00 DIS/NSF not detected within 40 s of Start
being pressed
0-01 DCN received unexpectedly
0-03 Incompatible modem at the other end
0-04 CFR or FTT not received after modem
training
0-05 Modem training fails even G3 shifts down
to 2400 bps
0-06 The other terminal did not reply to DCS
Meaning Suggested Cause/Action

Check the line connection.

The machine at the other end may be incompatible.

Replace the FCU.

Check for DIS/NSF with an oscilloscope.
 If the rx signal is weak, there may be a bad line.

The other party is out of paper or has a jammed printer.

The other party pressed Stop during communication.
The other terminal is incompatible.

Check the line connection.

Try changing the tx level and/or cable equalizer
settings.

Replace the FCU.

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.
Cross reference

Tx level - NCU Parameter 01 (PSTN)

Cable equalizer - G3 Switch 07 (PSTN)

Dedicated tx parameters in Service Program Mode
 Check the line connection.

Try adjusting the tx level and/or cable equalizer.

Replace the FCU.

Check for line problems.
Cross reference
See error code 0-04.

Check the line connection.
 Try adjusting the tx level and/or cable equalizer
settings.

Replace the FCU.

The other end may be defective or incompatible; try
3.Troubleshooting
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