Gestetner A193 Service Manual page 695

Code Meaning
0-20 Facsimile data not
received within
6 seconds of retraining
0-21 EOL signal (end-of-line)
from the other end not
received within 5 seconds
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: 0.2 s)
0-23 Too many errors during
reception
0-24 Printer failure occurred
while the memory was full
during non-ECM
reception; negative
response returned
0-30 The other terminal did not
reply to NSS(A) in AI short
protocol mode
Suggested Cause/Action
Check the line connection.
Check the FCU - NCU connectors.
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 ECM frames -
G3 Bit Switch 0A, bit 4
Check the line connection.
Check the FCU - NCU connectors.
Replace the NCU or 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,
bits 0 and 1
Check the line connection.
Check the FCU - NCU connectors.
Replace the NCU, FCU or FCU.
Defective remote terminal.
Check for line noise or other line problems.
Try asking the other end to adjust their tx level.
Try adjusting the rx cable equalizer setting and/or rx
error criteria.
Cross reference
Rx cable equalizer - G3 Switch 07 (PSTN)
Rx error criteria - Communication Switch 02, bits 0 and
1
There is no memory space available, or substitute
reception is disabled.
Try asking the user to add optional extra memory.
Check the line connection.
Check the FCU - NCU connectors.
Try adjusting the tx level and/or cable equalizer
settings.
The other terminal may not be compatible.
Cross reference
Dedicated tx parameters - Section 4
6-3
ERROR CODES