How Can We Help?
C255C (bizhub C364/C284/C224)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
Contents
| Trouble type | Black TCR sensor adjustment failure |
| Trouble code | C255C: Black TCR sensor adjustment failure |
| Rank | B |
| Detection timing | TCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value. |
| Trouble isolation | – |
| Relevant electrical parts | -Developing unit/Y,M,C,K -Toner bottle motor (M10) -Toner supply motor/Y (M9) -Toner supply motor/M (M8) -Toner supply motor/C (M7) -Toner supply motor/K (M6) -Front side board (FRB) -Printer control board (PRCB) |
(2)Procedure
| Step | Action | Control signal | Location of electrical components |
| 1 | Reinstall developing unit | – | – |
| 2 | Check the connector between developing unit-FRB CN13, CN14, CN15, CN16 for proper connection and correct as necessary. | – | – |
| 3 | Check the connector between FRB CN1, CN3-PRCB CN7, CN9 for proper connection and correct as necessary. | – | – |
| 4 | M10 operation check | PRCB CN14-17 to 20 | 20-C |
| 5 | M6, M7, M8, M9 operation check | PRCB CN14-13 to 16 (M6)PRCB CN14-9 to 12 (M7)PRCB CN14-5 to 8 (M8)PRCB CN14-1 to 4 (M9) | 19 to 20-C |
| 6 | Replace the developing unit (Part# A2XN03D) | – | – |
| 7 | Replace FRB (Part# A161H00501) | – | – |
| 8 | PRCB ICP21, ICP40, ICP43, ICP44, ICP46 conduction check | – | – |
| 9 | Replace PRCB (Part# A161H00108) | – | – |
- Link to the wiring diagram (N.1. bizhub C364/C284/C224)
- Link to the layout drawings for related parts by each trouble code (S.51. C2559)
- Link to the layout drawings for related parts by each trouble code (S.52. C255A)
- Link to the layout drawings for related parts by each trouble code (S.53. C255B)
- Link to the layout drawings for related parts by each trouble code (S.54. C255C)
K3.7.8 (Link to the Field Service Manual)