Konica-Minolta bizhub C7828
Troubleshooting. Jam Code: 12-01, 12-40
Contents
JAM type | Misfeed at tray 2 feed section |
JAM code | 12-01, 12-40 |
Detection timing | 12-01 The leading edge of the paper does not turn ON the tray 2 vertical transport sensor (PS19) 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. |
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Tray 2 vertical transport sensor (PS19) is turned ON when the main power switch is turned ON, a door or cover is opened and closed, or a misfeed or malfunction is reset. | |
Tray 2 paper feed sensor (PS20) is turned ON when the main power switch is turned ON, a door or cover is opened and closed, or a misfeed or malfunction is reset. (bizhub C364/C284 only) | |
In case paper position is detected as locating properly after main power switch is turned ON, door and cover are opened / closed or jam/trouble reset is done, it is regarded as paper jam at tray 2 feed section. | |
Misfeed processing location | • Right door • Tray 2 |
Relevant parts | • Transport motor (M1) • Tray 2 paper feed clutch (CL1) • Tray 2 vertical transport clutch (CL2) • Tray 2 vertical transport sensor (PS19) • Tray 2 paper feed sensor (PS20) • Printer control board (PRCB) |
Procedure
Step | Action | Control signal | Location |
---|---|---|---|
1 | Initial check items | ||
2 | PS19 I/O check, sensor check | PRCB CN19-5 (ON) | bizhub C364/C284 9-C bizhub C224 11-C |
3 | PS20 I/O check, sensor check (bizhub C364/C284 only) | PRCB CN19-2 (ON) | bizhub C364/C2849-C |
4 | CL1 operation check | PRCB CN19-14 (ON) | bizhub C364/C284 10-C bizhub C224 12-C |
5 | CL2 operation check | PRCB CN19-16 (ON) | bizhub C364/C284 10-C bizhub C224 12-C |
6 | M1 operation check | PRCB CN31-2 (REM) PRCB CN31-5 (LOCK) |
bizhub C364 21-J bizhub C284 22-J bizhub C224 24-J |
7 | PRCB ICP4 conduction check | ||
8 | Replace PRCB |