C5304 (bizhub C554/C454)
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Contents
| Trouble type | Fusing power supply cooling fan’s failure to turn <bizhub C554> | |
| Trouble code | C5304 | |
| Rank | B | |
| Detection timing | <bizhub C554> The fan lock signal remains HIGH for a predetermined continuous period of time while the fan remains stationary. | |
| Trouble isolation | – | |
| Relevant electrical parts | -Fusing power supply cooling fan (FM12) -Expansion control board (EXCB) -Printer control board (PRCB) |
(2)Procedure
| Step | Action | Control signal | Location of electrical components |
| 1 | Check the connector between FM12-EXCB CN6 for proper connection and correct as necessary. | – | – |
| 2 | Check the fan for possible overload and correct as necessary. | – | – |
| 3 | FM12 operation check | EXCB CN6-1 (REM)EXCB CN6-3 (LOCK) | 23-T |
| 4 | Replace FM12 (Part# 4139M10000) | – | – |
| 5 | EXCB ICP1 conduction check | – | – |
| 6 | Replace EXCB(Part# A2XKH00502) | – | – |
| 7 | Replace PRCB (C554 Part# A2XKH00104 / C454 A4FJH00104) | – | – |
- Link to the wiring diagram (N.1. bizhub C554/C454)
- Link to the layout drawings for related parts by each trouble code (S.96. C5304)
K3.10.2 (Link to the Field Service Manual)