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72-77 (bizhub 650i/550i/450i)
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When FS-539 or FS-539SD is installed
Contents
| JAM type | Misfeed at FS paper exit section (When FS-539 or FS-539SD is installed) | |
| JAM code | 72-77 | |
| JAM detection timing | 72-77: The alignment home sensor (PS12/PS13) is not turned OFF (unblocked) even after the set period of time has elapsed after the alignment motor (M7/M8) is energized at the time other than the initial operation. | |
| Misfeed processing location | Main tray | |
| Relevant parts | -Alignment motor/Fr (M7) -Alignment motor/Rr (M8) -Alignment plate home sensor/Fr (PS12) -Alignment plate home sensor/Rr (PS13) -FS control board (FSCB) |
Procedure
| Step | Action | Control signal | Location of electrical component |
|---|---|---|---|
| 1 | Initial check items | – | – |
| 2 | PS12 I/O check, sensor check | FSCB J4<B>-4 (ON) | FS-539/FS-539SD 14-C |
| 3 | PS13 I/O check, sensor check | FSCB J9<B>-12 (ON) | FS-539/FS-539SD 10-C |
| 4 | M7 operation check | FSCB J4<A>-5 to 8 | FS-539/FS-539SD 13 to 14-C |
| 5 | M8 operation check | FSCB J12-13 to 16 | FS-539/FS-539SD 7-C |
| 6 | Replace FSCB. (Part# AAR4PP8201) | – | – |
When FS-540 or FS-540SD is installed
Contents
| JAM type | Misfeed at FS paper exit section (When FS-540 or FS-540SD is installed) | |
| JAM code | 72-77 | |
| JAM detection timing | 72-77: The alignment home sensor (PS6/PS9) is not turned OFF (unblocked) even after the set period of time has elapsed after the alignment motor (M13/M14) is energized at the time other than the initial operation. | |
| Misfeed processing location | Main tray | |
| Relevant parts | -Alignment motor/Rr (M13) -Alignment motor/Fr (M14) -Alignment plate home sensor/Rr (PS6) -Alignment plate home sensor/Fr (PS9) -FS control board (FSCB) |
Procedure
| Step | Action | Control signal | Location of electrical component |
|---|---|---|---|
| 1 | Initial check items | – | – |
| 2 | PS6 I/O check, sensor check | FSCB J21-10 (ON) | FS-540/FS-540SD 4-D |
| 3 | PS9 I/O check, sensor check | FSCB J18-10 (ON) | FS-540/FS-540SD 6-D |
| 4 | M13 operation check | FSCB J21-1 to 4 | FS-540/FS-540SD 4-D |
| 5 | M14 operation check | FSCB J18-1 to 4 | FS-540/FS-540SD 5-D |
| 6 | Replace FSCB. (Part# AAR5PPD401) | – | – |