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12-01, 12-05, 12-40 (bizhub C750i)
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Contents
| JAM type | Misfeed at tray 2 paper feed section | |
| JAM code | 12-01, 12-05, 12-40 | |
| JAM detection timing | 12-01: After the tray 2 starts to feed paper, the tray 2 vertical transport sensor (PS19) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the tray 2 paper feed sensor (PS20). | |
| 12-05: The leading edge of the paper is not turned ON the tray 2 paper feed sensor (PS20) even after the lapse of a given period of time after the tray 2 starts to feed paper. | ||
| 12-40: For paper fed from the tray 2, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output. | ||
| Paper jam of a sheet of paper left at the tray 2 paper feed section results, if the tray 2 vertical transport sensor (PS19) is turned ON when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset. | ||
| Paper jam of a sheet of paper left at the tray 2 paper feed section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset. | ||
| Misfeed processing location | -Right door -Tray 2 | |
| Relevant parts | -Paper feed motor (M22) -Tray 2 vertical transport motor (M23) -Tray 2 paper feed clutch (CL1) -Tray 2 vertical transport sensor (PS19) -Tray 2 paper feed sensor (PS20) -Base board (BASEB) |
Procedure
| Step | Action | Control signal | Location of electrical component |
|---|---|---|---|
| 1 | Initial check items | – | – |
| 2 | PS19 I/O check, sensor check | BASEB CN23E-8 (ON) | 15-K |
| 3 | PS20 I/O check, sensor check | BASEB CN23E-5 (ON) | 15-K |
| 4 | CL1 load check Check code: 20 Multi code: 2 | BASEB CN23E-16 (ON) | 16-K |
| 5 | M22 load check Check code: 28 Multi code: 31, 34, 35 | BASEB CN31E-1 to 4 | 23-K |
| 6 | M23 load check Check code: 28 Multi code: 36, 39, 40 | BASEB CN31E-5 to 8 | 23-K |
| 7 | Replace BASEB. (Part# ACKNH02101) | – | – |