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C1156 (bizhub 754e/654e)
Contents
| Trouble type | SD paddle motor’s malfunction (trailing edge) | |
| Trouble code | C1156 | |
| Rank | B | |
| Detection timing | <When FS-534+SD-511 is installed> The paddle home sensor (PS5) is not blocked or unblocked even after the set period of time has elapsed while the SD paddle motor (M7) is energized. | |
| <When FS-535+SD-512 is installed> The paddle home sensor (PS5) is not blocked or unblocked even after the set period of time has elapsed while the SD paddle motor (M7) is energized. | ||
| Trouble isolation | Half-Fold/Tri-Fold Center Stapling | |
| Relevant electrical parts | <When FS-534+SD-511 is installed> SD paddle motor (M7)Paddle home sensor (PS5)SD drive board (SDDB)FS control board (FSCB) | |
| <When FS-535+SD-512 is installed> SD paddle motor (M7)Paddle home sensor (PS5)SD drive board (SDDB)FS control board (FSCB) |
(2)ProcedureWhen FS-534+SD-511 is installed
| Step | Action | Control signal | Location of electrical components |
| 1 | Check the connector between M7-SDDB J8 for proper connection, and correct as necessary. | – | – |
| 2 | Check the connector of M7 for proper drive coupling, and correct as necessary. | – | – |
| 3 | Check the connector between PS5-SDDB J8 for proper connection, and correct as necessary. | – | – |
| 4 | PS5 I/O check, sensor check | SDDB J8-3 (ON) | SD-511 3 to 4-G |
| 5 | M7 operation check | SDDB J8-4 to 7 | SD-511 3-F to G |
| 6 | Replace M7 (Part# A3ERPP3M00) | – | – |
| 7 | Replace SDDB (Part# A3ERPP6J03) | – | – |
| 8 | Replace FSCB (Part# A3EPPPBE01) | – | – |
- Link to the wiring diagram (N.2.5 Saddle stitcher SD-511)
- Link to the layout drawings for related parts by each trouble code (S.42.1 SD-511)
When FS-535+SD-512 is installed
| Step | Action | Control signal | Location of electrical components |
| 1 | Check the connector between M7-SDDB J8 for proper connection, and correct as necessary. | – | – |
| 2 | Check the connector of M7 for proper drive coupling, and correct as necessary. | – | – |
| 3 | Check the connector between PS5-SDDB J8 for proper connection, and correct as necessary. | – | – |
| 4 | PS5 I/O check, sensor check | SDDB J8-3 (ON) | SD-512 3-G |
| 5 | M7 operation check | SDDB J8-4 to 7 | SD-512 3-F to G |
| 6 | Replace M7 (Part# A3EPPP5500) | – | – |
| 7 | Replace SDDB (Part# A3ERPP6J03) | – | – |
| 8 | Replace FSCB (Part# A2Y1H10002) | – | – |
- Link to the wiring diagram (N.2.9 Saddle sticher SD-512)
- Link to the layout drawings for related parts by each trouble code (S.42.2 SD-512)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
K.3.6.33 (Link to the Field Service Manual)