Phaser 6121MFP Service Manual 3-9
Error Messages and Codes
Fax Errors
There are five possible reasons for fax errors:
1. Communication is discontinued by a machine error.
2. Communication is discontinued by a machine trouble.
3. Communication is discontinued by an error occurring at the destination 
station.
4. Communication is discontinued by a protocol error.
5. ADF Error on trouble.
When communication is discontinued due to item 3 or 4, transmission is retried. In 
the other cases, transmission is canceled without retry.
For general Fax troubleshooting procedures, see “Fax Troubleshooting” on 
page 4-11.
Reception Error Codes
Code Description
0001 Manual receive mode, no G3 signal received within 35 seconds.
0003 Received DIS after sending DIS signal.
0004 Received DCN after sending DTC signal.
0006 Detect busy tone within receiving phase B.
0009 No signal received within 35 seconds in manual polling mode.
0010 Received DCN signal after sending DTC signal in polling RX.
00110 No correct response received after sending three DTC signal.
0012 Incorrect polling password.
0013 No carrier signal received within 6 seconds after sending CFR in data 
phase C.
0014 No T.30 signal received after sending FTT signal.
0015 Line polarity change within receiving phase B to D.
0016 Received DCN signal after sending PTT signal.
0017 No response received after sending type of xxx_EOM signal.
0018 Cannot detect energy within 6 seconds after sending FTT command.
0019 Received DCN signal after sending CFR signal.
001A In phase C, no energy on line over 6 seconds before any corrected ECM 
frame.
001D Detected flag, but no signals after CFR.
0020 Cannot correct frame within 6 seconds or in no-ECM mode, one decoding 
line over 6 seconds.
0021 File full.