Konica Minolta bizhub C200 Service Manual page 527

9. Troubleshooting
Code Description
74 • Received DIS or DTC 3
times while waiting for
response to TCF
• No response even after
sending TSI/DCS and
TCF 3 times
• Received FTT twice even
TCF has lowest speed
76 • Reverse polarity while
waiting for signal other
than initial identification
77 • No response to post mes-
sage (T4 timeout)
• 5 minute timeout in RNR,
RR sequence (T5 timeout)
78 • Received DCN while wait-
ing for response to post
message
79 • Received PIP for post
message (For response to
EOP or PPS-EOP, com-
munication is normal even
though error code is dis-
played)
7A • Received RTN for post
message (where RTN
reception is regarded as
communication failure)
• Retry out of resending
error
• PPR frame error
7C • Received CRP 3 times for
TCF
• Received CRP 3 times for
post message
• Received CRP 3 times for
DTC of polling reception
7D • RX command error (with-
out cutting off carrier)
7F • No remote machine
response after changing
mode (T1 timeout)
8F • Received PIN for post
message
90
Cause
Re Li Lo
Failure in remote
machine
Line failure
Failure in FAXU board
Failure in MFBU board
Failure in remote
machine
Line failure
Failure in remote
machine
No RTC detection in
remote machine (line
failure)
Interruption or failure
in remote machine
Failure in remote
machine
Failure in remote
machine
Line failure
Failure in TX level
Failure in remote
machine
Line failure
Failure in remote
machine
Failure in remote
machine
Failure in remote
machine
Field Service Ver. 1.0 Jun. 2008
Remedy
Try another remote machine.
Try another line.
Replace FAXU board
Replace MFBU board
Check the remote system
and retry TX.
If same error is experienced
several times, set the soft
switch to (MODE 082 Bit 3)
0.
Try another remote machine.
Try another line.
Check the status of the
remote machine and retry
TX.
Check the status of the
remote machine.
Check the status of the
remote machine.
Check the line.
Check TX level.
Try another remote machine.
Try another line.
Check the status of the
remote machine.
Check the status of the
remote machine.
Check the status of the
remote machine.