C2558 – (bizhub 364e/284e/224e)
Contents
| Trouble type | Abnormally high toner density detected black TCR sensor |
| Trouble code | C2558 |
| Rank | B |
| Detection timing | The TC ratio of the toner determined by the toner replenishment control is detected to be the predetermined value or over for consecutive times. |
| Trouble isolation | – |
| Relevant electrical parts | • Developing unit • Toner cartridge • Front side board (FRB) • Printer control board (PRCB) |
(2)Procedure
| Step | Action | Control signal | Location of electrical components |
| 1 | Reinstall developing unit | – | – |
| 2 | Reinstall toner cartridge | – | – |
| 3 | Check the connector between developing unit-FRB CN13 for proper connection and correct as necessary. | – | – |
| 4 | Check the connector between FRB CN1, CN3-PRCB CN7, CN9 for proper connection and correct as necessary. | – | – |
| 5 | Replace the developing unit (Part# A2XN03D) | – | – |
| 6 | Replace FRB (Part# A61FH00500) | – | – |
| 7 | Replace PRCB (Part# A61FH00101) | – | – |
- Link to the layout drawings for related parts by each trouble code (S.40. C2414, C2558, C2564)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
K.3.7.4 (Link to the Field Service Manual)