C2257 (bizhub 754e/654e)
Contents
| Trouble type | Cleaning brush motor’s failure to turn |
| Trouble code | C2257 |
| Rank | B |
| Detection timing | The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning. |
| Trouble isolation | – |
| Relevant electrical parts | • Transfer belt unit (cleaner unit) • Cleaning brush motor (M38) • Printer control board (PRCB) |
(2)Procedure
| Step | Action | Control signal | Location of electrical components |
| 1 | Check the connector between M38-PRCB CN39 for proper connection and correct as necessary. | – | – |
| 2 | Check the M38 connector for proper drive coupling and correct as necessary. | – | – |
| 3 | Check the cleaner unit gear of the transfer belt unit for rotation and correct any faulty rotation. | – | – |
| 4 | M38 operation check | PRCB CN39-1 to 7 | 20-K |
| 5 | Replace M38 (Part# A161M10200) | – | – |
| 6 | Replace the transfer belt unit. (Part# A55VR70000) | – | – |
| 7 | PRCB ICP8 conduction check | – | – |
| 8 | Replace PRCB (Part# A55VH00105) | – | – |
- Link to the wiring diagram (N.1. bizhub 754e/654e)
- Link to the layout drawings for related parts by each trouble code (S.55. C2257, C2258)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
K.3.7.6 (Link to the Field Service Manual)