Ricoh FACSIMILE FAX77, Field Service Manual

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Code Meaning Suggested Cause/Action
0-64 EOM (1100 Hz) not received at the 1. Check line connection.
correct time (G2 mode) 2. Check connectors from FCU to modem and NCU.
3. Replace the NCU, FCU, or modem.
4. Check whether EOM actually comes in from the line.
5. Defective or incompatible remote terminal.
6. Check for line problems.
0-65
EOM (1100 Hz) carrier did not drop 1. Check connectors from FCU to modem and NCU.
at the correct time (G2 mode) 2. Replace the NCU, FCU, or modem.
3. Check for line problems.
4. Check the EOM turn-off timing from the line on an oscillo-
scope.
5. Incompatible or defective remote terminal.
0-66 CFR (1100 Hz) not received at the
1. Check line connection.
correct time
2. Check connectors from FCU to modem and NCU.
3. Replace the NCU, FCU, or modem.
4. Check whether CFR actually comes in from the line.
5. Defective or incompatible remote terminal.
6. Check for line problems.
0-67 CFR (1100 Hz) carrier did not drop
1. Check connectors from FCU to modem and NCU.
at the correct time
2. Replace the NCU, FCU, or modem.
3. Check for line problems.
4. Check the CFR turn-off timing from the line on an oscillo-
scope.
5. Incompatible or defective remote terminal.
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