C2558 (bizhub C754/C654)
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Contents
| Trouble type | Abnormally high toner density detected black TCR sensor |
| Trouble code | C2558 |
| Rank | B |
| Detection timing | TC ratio in the developing unit, which is determined by toner replenishing amount control mechanism, is a predetermined value or more for a given number of times consecutively. |
| Trouble isolation | – |
| Relevant electrical parts | -Developing unit /K -Toner cartridge /K -Sub hopper unit -Printer control board (PRCB) |
(2)Procedure
| Step | Action | Control signal | Location of electrical components |
| 1 | Reinstall developing unit/K | – | – |
| 2 | Reinstall toner cartridge | – | – |
| 3 | Replace the developing unit/K (Part# A2X203D) | – | – |
| 4 | Replace PRCB (Part# A2X0H00102) | – | – |
| 5 | Replace the sub hopper unit (Part# A2X0R71433) | – | – |
- 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.3.7.17 (Link to the Field Service Manual)