Ricoh MP C307 Field Service Manual page 1107

Code
0-16 CFR or FTT not detected after modem
training in confidential or transfer mode
0-17 Communication was interrupted by
pressing the stop key
0-20 Facsimile data not received within 6 s of
retraining
0-21 EOL signal (end-of-line) from the other
end not received within 5 s of the
previous EOL signal
0-22 The signal from the other end was
interrupted for more than the acceptable
modem carrier drop time (default: 200
ms)
Meaning Suggested Cause/Action
• Check the line connection.
• Replace the FCU.
• Try adjusting the tx level and/or cable equalizer
settings.
• The other end may have disconnected, or it may be
defective; try calling another machine.
• If the rx signal level is too low, there may be a line
problem.
Cross reference
• See error code 0-08.
• If the Stop key was not pressed and this error keeps
occurring, replace the operation panel or the operation
panel drive board.
• Check the line connection.
• Replace the FCU.
• Check for line problems.
• Try calling another fax machine.
• Try adjusting the reconstruction time for the first line
and/or rx cable equalizer setting.
Cross reference
• Reconstruction time - G3 Switch 0A, bit 6
• Rx cable equalizer - G3 Switch 07 (PSTN)
• Check the connections between the FCU and line.
• Check for line noise or other line problems.
• Replace the FCU.
• The remote machine may be defective or may have
disconnected.
Cross reference
• Maximum interval between EOLs and between ECM
frames - G3 Bit Switch 0A, bit 4
• Check the line connection.
• Replace the FCU.
• Defective remote terminal.
• Check for line noise or other line problems.
• Try adjusting the acceptable modem carrier drop
time.
Cross reference
• Acceptable modem carrier drop time - G3 Switch 0A,
3.Troubleshooting
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