Konica Minolta bizhub C658 Service Manual page 1486

bizhub C658/C558/C458/C368/C308/C258
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Check the fusing unit for correct installation (whether it is secured in position).
2. Check the fusing unit-MFPB CN22E for proper connection and correct or change as necessary.
3. Check the connector between NFB CN2-IHPU CN1 for proper connection and correct as necessary.
4. Check the connector between IHPU CN8-MFPB CN3E for proper connection and correct as necessary.
5. Check the marketing area of the fusing unit. If the marketing area is incorrect, replace the fusing unit for proper marketing area.
6. Check the marketing area of IHPU. If the marketing area is incorrect, replace IHPU for proper marketing area.
7. Replace IHC.
8. Replace IHPU.
9. Replace MFPB.
10. Replace NFB.
3.14.14 C3B09 (bizhub C658/C558/C458)
(1) Contents
Trouble type
Rank
Trouble detection condition No signal has been received from the fusing CPU a predetermined number of consecutive times.
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Check the fusing unit for correct installation (whether it is secured in position).
2. Check the open/close operation of the right door.
3. Check the fusing unit-MFPB CN22E for proper connection and correct or change as necessary.
4. Check the connector between MFPB CN13E-NFB CN3 for proper connection and correct as necessary.
5. Check the connector between NFB CN2-IHPU CN1 for proper connection and correct as necessary.
6. Check the connector between IHPU-IHC for proper connection and correct as necessary.
7. Check the connector between IHC-IHMEB for proper connection and correct as necessary.
8. Replace the fusing unit.
9. Replace IHC.
10. Replace IHPU.
11. Replace IHMEB.
12. Replace MFPB.
13. Replace NFB.
3.15 C4###
3.15.1 C4091 (bizhub C368/C308/C258)
(1) Contents
Trouble type
Rank
Trouble detection condition Communication between the controller control unit and the engine control unit is not completed even after the
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Reboot the machine.
2. Replace MFPB.
3.15.2 C40A1, C40A2, C40A3, C40A4, C40C3, C40C5 (bizhub C658/C558/C458/C368/C308/C258)
(1) Contents
Trouble type
-
• Fusing unit
• IH coil (IHC)
• IH power supply (IHPU)
• NF board (NFB)
• MFP board (MFPB)
C3B09: IH communication error
C
-
• Fusing unit
• IH coil (IHC)
• IH power supply (IHPU)
• IH magnetic erasing board (IHMEB)
• NF board (NFB)
• MFP board (MFPB)
C4091: I/F communication error
C
lapse of a predetermined period of time.
-
MFP board (MFPB)
• C40A1: Mechanical controller sub-CPU communication error
• C40A2: Mechanical controller PF communication data error
• C40A3: Mechanical controller PF transmission timeout
• C40A4: Mechanical controller PF communication pulse error
• C40C3: CTL PDF transmission timeout 1
• C40C5: CTL PDF transmission timeout 2
K TROUBLESHOOTING > 3. TROUBLE CODE
K-158