C9404 (bizhub C4050i/C3350i)
Contents
| Trouble type | C9404: CIS LED lighting abnormally (back side) |
| Rank | B |
| Trouble detection condition | 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 | • Flat cable • DF CIS module (DF CIS) • CPU board (CPUB) • Base board (BASEB) |
Procedure
- Check CPUB for proper installation and correct as necessary.
- Replace the flat cable. (Part# A93EN11300)
- Replace the DF CIS module assy. (Part# AAJNR70900)
- Replace CPUB. (Part# A93EH01004)
- Replace BASEB. (Part# A93EH02007)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
L.3.14.2 (Link to the Field Service Manual)