72-23 (bizhub C750i)
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When FS-539 or FS-539SD is installed
Contents
| JAM type | Misfeed at FS transport section (When FS-539 or FS-539SD is installed) | |
| JAM code | 72-23 | |
| JAM detection timing | 72-23: The sub tray exit sensor (PS8) is not turned OFF (unblocked) even after the lapse of a given period of time after the leading edge of the paper has turned ON (blocked) PS8. | |
| Misfeed processing location | Front door | |
| Relevant parts | -FNS discharge motor (M3) -Sub tray exit sensor (PS8) -FNS entrance sensor (PS4) -Main tray exit sensor (PS16) -FS control board (FSCB) |
Procedure
| Step | Action | Control signal | Location of electrical component |
|---|---|---|---|
| 1 | Initial check items | – | – |
| 2 | Clean the sensor of paper path. | – | – |
| 3 | PS8 I/O check, sensor check | FSCB J9<B>-9 (ON) | FS-539/FS-539SD 11-C |
| 4 | M3 operation check | FSCB J9<A>-5 to 8 | FS-539/FS-539SD 12-C |
| 5 | Replace FSCB. (Part# AAR4PP8201) | – | – |
When FS-540 or FS-540SD is installed
Contents
| JAM type | Misfeed at FS transport section (When FS-540 or FS-540SD is installed) | |
| JAM code | 72-23 | |
| JAM detection timing | 72-23: The sub tray exit sensor (PS24) is not turned OFF (unblocked) even after the lapse of a given period of time after the leading edge of the paper has turned ON (blocked) PS24. | |
| Misfeed processing location | Front door | |
| Relevant parts | -Sub tray discharge motor (M18) -Sub tray exit sensor (PS24) -FNS entrance sensor (PS34) -FNS middle sensor (PS36) -Main tray exit sensor (PS37) -FS control board (FSCB) |
Procedure
| Step | Action | Control signal | Location of electrical component |
|---|---|---|---|
| 1 | Initial check items | – | – |
| 2 | Clean the sensor of paper path. | – | – |
| 3 | PS24 I/O check, sensor check | FSCB J14<A>-14 (ON) | FS-540/FS-540SD 17-K to L |
| 4 | M18 operation check | FSCB J12<A>-5 to 8 | FS-540/FS-540SD 14-D |
| 5 | Replace FSCB. (Part# AAR5PPD401) | – | – |