Konica Minolta bizhub C658 Service Manual page 1487

bizhub C658/C558/C458/C368/C308/C258
Rank
Trouble detection condition A CPU communication error is detected.
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Turn OFF the main power switch, disconnect and then connect the power cord. Wait for 10 sec. or more after connect the power cord,
and turn ON the main power switch.
2. Rewrite the firmware.
3. Replace MFPB. (bizhub C368/C308/C258
3.15.3 C4101 (bizhub C658/C558/C458/C368/C308/C258)
(1) Contents
Trouble type
Rank
Trouble detection condition
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Check the connector between the PH unit-FRB CN17 for proper connection and correct as necessary. (bizhub C368/C308/C258)
2. Check the connector between the PH unit-FRB CN5 for proper connection and correct as necessary. (bizhub C658/C558/C458)
3. Replace the PH unit. (bizhub C368/C308/C258
4. FRB fuse conduction check
5. Replace FRB. (bizhub C368/C308/C258
6. Replace MFPB. (bizhub C368/C308/C258
3.15.4 C4501 (bizhub C658/C558/C458/C368/C308/C258)
(1) Contents
Trouble type
Rank
Trouble detection condition
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Check the connector between the PH unit-relay CN63-MFPB CN20E for proper connection and correct as necessary.
2. Replace the PH unit. (bizhub C368/C308/C258
3. Replace MFPB. (bizhub C368/C308/C258
3.16 C5### (bizhub C368/C308/C258)
3.16.1 C5102, C5103 (bizhub C368/C308/C258)
(1) Contents
Trouble type
Rank
Trouble detection condition
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Check the connector between M1-MFPB CN8E for proper connection and correct as necessary.
2. Check the loading status of the transfer belt drive, and correct the error as necessary.
3. M1 operation check
• Control signal: MFPB CN8E-3 (REM), MFPB CN8E-6 (LOCK)
• Location of electrical component: 2-C
C
-
MFP board (MFPB)
/ bizhub C658/C558/C458)
C4101: Polygon motor's rotation trouble
B
• The polygon motor fails to turn stably even after the lapse of a given period of time after activating and
changing rotation speed the polygon motor.
• Motor lock signal detects HIGH for a given period time consecutively during the polygon motor is rotating.
-
• PH unit
• Front side board (FRB)
• MFP board (MFPB)
/ bizhub
/ bizhub C658/C558/C458)
/ bizhub C658/C558/C458)
C4501: Laser malfunction
B
• SOS signal is not detected even after the lapse of a given period of time after starting the laser output.
• SOS signal is not detected for a given period of time during printing or IDC sensor adjustment.
-
• PH unit
• MFP board (MFPB)
/ bizhub
/ bizhub C658/C558/C458)
• C5102: Transport motor failure to turn
• C5103: Transport motor turning at abnormal timing
B
• C5102: The motor lock signal remains HIGH for a predetermined continuous period of time while the motor
is turning.
• C5103: The motor lock signal remains LOW for a predetermined continuous period of time while the motor
remains stationary.
-
• Transport motor (M1)
• MFP board (MFPB)
C658/C558/C458)
C658/C558/C458)
K-159
K TROUBLESHOOTING > 3. TROUBLE CODE