C9403, C9404 (bizhub 360i/300i)
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Contents
| Trouble type | C9403: CIS LED lighting failure (When DF-714 is installed) C9404: CIS LED lighting abnormally (When DF-714 is installed) |
| Rank | B |
| Trouble detection condition | C9403: At the CIS gain adjustment, the machine detected that the output of the CIS LED is lower than the specified value. C9404: After a scan job is completed, the machine detected that the average output of the CIS LED is greater than the specified value. |
| Trouble isolation | Scanner |
| Relevant electrical parts | -CIS cableCIS module (CIS) -CIS power supply (CISPU) -CPU board (CPUB) -Base board (BASEB) |
Procedure
- Check the back side scanning shading shaft for any stain, and clean up it as necessary.
- Check that the bushing of the back side glass cleaning roller unit is on the standby position.
- Correct the harness connection between CIS J221-BASEB CN5 if faulty.
- Correct the harness connection between CIS J222-CISPU J2 if faulty.
- Check CPUB for proper installation and correct as necessary.
- Measure the voltage of CISPU J1-1.
- Control signal: CISPU J1-1 (DC12V)
- Location of electrical component: DF-714 5-B
- Measure the voltage of CIS J222-1, J222-2 and J222-5.
- Control signal: CIS J222-1 (DC5V), CIS J222-2 (DC5V), CIS J222-5 (DC12V)
- Location of electrical component: DF-714 6-B
- For any abnormality in the measurement result, replace the CIS cable.
(Part# A85GN11701) - CIS F1 or F2conduction check
- Replace CIS. (Part# AAMNM70000)
- Replace CISPU. (Part# A3CEPP4Y00)
- Replace CPUB. (Part# AC77H02P02)
- Replace BASEB. (Part# AC77H02101)