Error Codes - Gestetner B003 Service Manual

2. TROUBLESHOOTING

2.1 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
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 Unsuccessful after modem
training at 2400 bps
SM
Suggested Cause/Action
• 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.
• 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.
• 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.
Cross reference
• Tx level - NCU Parameter 01 (PSTN)
• Cable equalizer - G3 Switch 07 (PSTN)
• Dedicated Tx parameters - Section 4
• Check the line connection.
• Check the NCU - FCU connectors.
• Try adjusting the tx level and/or cable equalizer.
• Replace the FCU or NCU.
• Check for line problems.
Cross reference
• See error code 0-04.
2-1
ERROR CODES
B003/B004/B006/B007