Ricoh D127 Field Service Manual page 370

4. Appendix: Fax Troubleshooting Guide
Code Meaning
CFR or FTT not detected after
0-16 modem training in confidential
or transfer mode
Facsimile data not received
0-20
within 6 s of retraining
EOL signal (end-of-line) from
the other end not received
0-21
within 5 s of the previous EOL
signal
162
Suggested Cause/Action
• Check the line connection.
• Replace the NCU or 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.
• Check the line connection.
• Replace the NCU or 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, NCU, &
line.
• Check for line noise or other line problems.
• Replace the NCU or 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