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75-42 (bizhub 750i)
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When FS-539 or FS-539SD is installed
Contents
| JAM type | Misfeed at RU section (When FS-539 or FS-539SD is installed) | |
| JAM code | 75-42 | |
| JAM detection timing | 75-42: The RU entrance sensor (PS2) is not turned ON (blocked) even after the lapse of a given period of time after the leading edge of the paper has turned OFF (unblocked) the main body’s paper exit sensor (PS3). | |
| Misfeed processing location | Horizontal transport cover | |
| Relevant parts | -RU transport motor (M1) -Paper exit sensor (PS3) -RU entrance sensor (PS2) -FS control board (FSCB) |
Procedure
| Step | Action | Control signal | Location of electrical component |
|---|---|---|---|
| 1 | Initial check items | – | – |
| 2 | PS3 I/O check, sensor check | BASEB CN22E-3 (ON) | 11-C |
| 3 | PS2 I/O check, sensor check | FSCB J6-7 (ON) | FS-539/FS-539SD 12-K |
| 4 | M1 operation check | FSCB J6-1 to 4 | FS-539/FS-539SD 11-K |
| 5 | FSCB F2 conduction check | – | – |
| 6 | Replace FSCB. (Part# AAR4PP8201) | – | – |
When FS-540 or FS-540SD is installed
Contents
| JAM type | Misfeed at RU section (When FS-540 or FS-540SD is installed) | |
| JAM code | 75-42 | |
| JAM detection timing | 75-42: The RU entrance sensor (PS2) is not turned ON (blocked) even after the lapse of a given period of time after the leading edge of the paper has turned OFF (unblocked) the main body’s paper exit sensor (PS3). | |
| Misfeed processing location | Horizontal transport cover | |
| Relevant parts | -RU transport motor (M1) -Paper exit sensor (PS3 -RU entrance sensor (PS2)FS control board (FSCB) |
Procedure
| Step | Action | Control signal | Location of electrical component |
|---|---|---|---|
| 1 | Initial check items | – | – |
| 2 | PS3 I/O check, sensor check | BASEB CN22E-3 (ON) | 11-C |
| 3 | PS2 I/O check, sensor check | FSCB J8<B>-12 (ON) | FS-540/FS-540SD 8-D |
| 4 | M1 operation check | FSCB J8<B>-6 to 9 | FS-540/FS-540SD 8-D |
| 5 | FSCB F1 conduction check | – | – |
| 6 | Replace FSCB. (Part# AAR5PPD401) | – | – |