C255B (bizhub C754/C654)
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Contents
| Trouble type | Yellow TCR sensor adjustment failure |
| Trouble code | C255B |
| Rank | B |
| Detection timing | TCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value. |
| Trouble isolation | – |
| Relevant electrical parts | -Imaging unit /C -Imaging unit /M -Imaging unit /Y -Printer control board (PRCB) |
(2)Procedure
| Step | Action | Control signal | Location of electrical components |
| 1 | Reinstall imaging unit | – | – |
| 2 | Replace the imaging unit (C Part# A2X20KD, M Part# A2X20ED, Y Part# A2X208D) | – | – |
| 3 | PRCB ICP23 or ICP24 conduction check | – | – |
| 4 | Replace PRCB (Part# A2X0H00102) | – | – |
- Link to the layout drawings for related parts by each trouble code (S.62. C2414, C2552, C2554, C2556, C2558, C2559, C255A, C255B, C255C, C2651, C4802, C5601, CC153, CEEE3)
K.3.7.18 (Link to the Field Service Manual)