3-26 Phaser 6121MFP Service Manual
Error Messages and Codes
Transmission Errors
The transmission error before “Phase-B” performs redial according to the redial 
interval of each country and the number of times.
The transmission error after “Phase-C” performs redial only one time. Transmission 
is canceled when an error occurs again.
For information on the acronyms in the illustration above, see “Common Fax 
Transfer Commands” on page 4-11.
Code Possible Causes of Error
0080 Cannot detect a G3 signal within 35 seconds specified by ITU-T in 
phase B.
0081 Received DTC signal in transmission phase.
0082 Transmitting unit receives a signal other than DIS or DTC and DCN in 
phase B.
0083 Detected FSK signal, but did not receive any signal within 35 seconds.
0084 Detect DCN signal in phase B.
0085 Transmitting unit sending DCS 3 times consecutively, but each time 
responds with DIS/DTC.
0086 Detected responds signal other than DTC, DIS, FTT, DCN or CFR after 
sending DCS.
0087 Training attempt has failed because speed of the unit can not adjust 
to lower speed.
0088 Received DCN signal after sending out DCS signal.
008B Receiver’s protocol of DIS is received, but it is not compatible with this 
machine.
s6121mfp-374
CNG
CED
DIS (CSI)
TCF
(TSI) DCS
CFR
At EOM TX
At MPS TX
PIX DATA
EOP or (MPS) 
or (EOM)
MCF
DCN
At EOM RX
At MPS RX
A
B
C
D
E