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C5304 (bizhub C754/C654)
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Contents
| Trouble type | IH power supply cooling fan’s failure to turn |
| Trouble code | C5304 |
| Rank | B |
| Detection timing | The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning. |
| Trouble isolation | – |
| Relevant electrical parts | -IH power supply cooling fan (FM10) -Printer control board (PRCB) |
(2)Procedure
| Step | Action | Control signal | Location of electrical components |
| 1 | Check the connector between FM10-relay CN293-PRCB CN5 for proper connection and correct as necessary. | – | – |
| 2 | Check the fan for possible overload and correct as necessary. | – | – |
| 3 | FM10 operation check | PRCB CN5-3 (DRIVE)PRCB CN5-5 (LOCK) | 9-K |
| 4 | Replace FM10 (Part# 4556M10000) | – | – |
| 5 | PRCB ICP24 conduction check | – | – |
| 6 | Replace PRCB (Part# A2X0H00102) | – | – |
- Link to the wiring diagram (N.1. bizhub C754/C654)
- Link to the layout drawings for related parts by each trouble code (S.83. C5304)
K.3.10.2 (Link to the Field Service Manual)