Konica Minolta bizhub C658 Service Manual page 1475

bizhub C658/C558/C458/C368/C308/C258
(2) Procedure
1. Reinstall the developing unit.
2. Check the connector between the developing unit-FRB CN13 (C255C), CN14 (C2559), CN15 (C255A), CN16 (C255B) for proper
connection and correct as necessary.
3. Check the connector between FRB CN1, CN3-MFPB CN4E, CN5E for proper connection and correct as necessary.
4. M10, M25 operation check
• Control signal: MFPB CN28E-8 to 11 (M10), CN28E-4 to 7 (M25)
• Location of electrical component: 12-C (M10), 11-C (M25)
5. M6, M7, M8, M9 operation check
• Control signal: EXCB CN3-4 to 7 (M6), CN3-8 to 11 (M7), CN3-12 to 15 (M8), CN3-16 to 19 (M9)
• Location of electrical component: 15-C (M7, M8), 16-C (M9)
6. Replace the developing unit.
7. Replace FRB.
8. Replace EXCB.
9. Replace MFPB.
NOTICE
• Link to the wiring diagram (
3.12.10 C2561, C2562, C2563, C2564 (bizhub C658/C558/C458)
(1) Contents
Trouble type
Rank
Trouble detection condition
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Reinstall the developing unit.
2. Check the connector between the developing unit-FRB CN13 (C2564), CN14 (C2561), CN15 (C2562), CN16 (C2563) for proper
connection and correct as necessary.
3. Check the connector between FRB CN1, CN3-MFPB CN4E, CN5E for proper connection and correct as necessary.
4. Replace the developing unit.
5. Replace FRB.
6. Replace MFPB.
3.12.11 C2650, C265B (bizhub C658/C558/C458)
(1) Contents
Trouble type
Rank
Trouble detection condition
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Make sure that EEPROM/1 and EEPROM/2 are mounted in their respective correct positions.
2. Check to see if the EEPROM is mounted in a reverse direction.
3. Check the connector from MFPB to EEPROM for proper connection and correct as necessary.
4. Replace MFPB.
5. Replace EEPROM/1 and EEPROM/2.
1. Replace the current EEPROM with a new one.
2. Replace the following components with new ones.
When the transfer belt unit and the fusing unit have been replaced with new ones, perform
transfer roller has been replaced with a new one, perform
• Developing unit/Y,M,C,K
• Drum unit/Y,M,C,K
• Toner cartridge/Y,M,C,K
• Transfer belt unit
• Fusing unit
• Transfer roller
N.2 bizhub C658/C558/C458)
• C2561: Cyan TCR sensor failure
• C2562: Magenta TCR sensor failure
• C2563: Yellow TCR sensor failure
• C2564: Black TCR sensor failure
B
• Alarm signals for each TCR sensor is detected more than the predetermined number of times.
• This detection is used for detecting disconnection of TCR sensor connector.
-
• Developing unit/C,M,Y,K
• Front side board (FRB)
• MFP board (MFPB)
• C2650: Main backup media access error 1
• C265B: Main backup media access error 2
C
• The re-written data, which has been read out, checked and founded as error, is read out again and found as
error.
• The error was found when reading out the counter value.
• The main body detects that the EEPROM is not mounted.
-
• C2650: EEPROM1 (EEPROM/1)
• C265B: EEPROM2 (EEPROM/2)
• MFP board (MFPB)
[Counter clear].
K-147
K TROUBLESHOOTING > 3. TROUBLE CODE
[New Release] in the service mode. When the