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C2152 (bizhub C754e/C654e)
Contents
| Trouble type | Transfer belt pressure welding alienation |
| Trouble code | C2152 |
| Rank | B |
| Detection timing | • At the completion of transfer belt pressure/retraction operations, the 1st transfer pressure sensor/K (PS51) or the 1st transfer pressure sensor/YMC (PS52) is not in the status corresponding to each of the transfer belt pressure/retraction operations. See the table below. • Even after a predetermined period of time has elapsed since the transfer belt starts pressure/retraction operation, the 1st transfer pressure sensor/K (PS51) or the 1st transfer pressure sensor/YMC (PS52) is not in the status corresponding to each of the transfer belt pressure/retraction operations. See the table below. |
| Trouble isolation | – |
| Relevant electrical parts | • Transfer belt unit • 1st transfer pressure sensor/K (PS51) • 1st transfer pressure sensor/YMC (PS52) • 1st transfer pressure motor (M21) • Printer control board (PRCB) |
| Operation | Position | Sensor status (K: Color) |
| Color and K retraction -> K pressureColor and K pressure -> K pressure | K pressure | ON (not blocked): OFF (blocked) |
| Color and K retraction -> Color and K pressureK pressure -> Color and K pressure | Color and K pressure | ON (not blocked): ON (not blocked) |
| K pressure -> Color and K retractionColor and K pressure -> Color and K retraction | Color and K retraction | OFF (blocked): OFF (blocked) |
(2)Procedure
| Step | Action | Control signal | Location of electrical components |
| 1 | Check the connector between M21-relay CN428-PRCB CN4 for proper connection and correct as necessary. | – | – |
| 2 | Check the connector of M21 for proper drive coupling and correct as necessary. | – | – |
| 3 | Check the transfer roller pressure gear of the transfer belt unit for proper engagement and the roller for rolling operation, and correct any faulty motion. | – | – |
| 4 | Check the connector between PS51-relay CN297-PRCB CN6 for proper connection and correct as necessary. | – | – |
| 5 | Check the connector between PS52-relay CN297-PRCB CN6 for proper connection and correct as necessary. | – | – |
| 6 | PS51 I/O check, sensor check | PRCB CN6-1 (ON) | 21 to 22-C |
| 7 | PS52 I/O check, sensor check | PRCB CN6-4 (ON) | 22-C |
| 8 | M21 operation check | PRCB CN4-9 to 12 | 3 to 4-K |
| 9 | Replace M21 (part# A02EM10C01) | – | – |
| 10 | Replace the transfer belt unit. (Part# A2X0R70100) | – | – |
| 11 | PRCB ICP5 or ICP24 conduction check | – | – |
| 12 | Replace PRCB (Part# A2X0H00S06) | – | – |
- Link to the wiring diagram (N.1. bizhub C754e/C654e)
- Link to the layout drawings for related parts by each trouble code (S.52. C2152)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
K.3.7.3 (Link to the Field Service Manual)