Konica-Minolta bizhub C7828
Troubleshooting. Jam Code: 20-01, 20-02
Contents
JAM type | Misfeed at vertical transport section |
JAM code | 20-01, 20-02 |
Detection timing | 20-01 The registration sensor (PS1) is not unblocked even after the lapse of a given period of time after the paper has turned ON the tray 2 vertical transport sensor (PS19). |
20-02 For paper fed from the tray 2, tray 3, tray 4 or LCT, loop forming has not been complete before a sheet enters the registration roller because the rise timing of load to perform registration is earlier than the rise timing of load to form a loop. |
|
Misfeed processing location | Right door |
Relevant parts | • Transport motor (M1) • Tray 2 vertical transport clutch (CL2) • Registration clutch (CL4) • Registration sensor (PS1) • Tray 2 vertical transport sensor (PS19) • Front side board (FRB) • Printer control board (PRCB) |
Procedure
Step | Action | Control signal | Location |
---|---|---|---|
1 | Initial check items | ||
2 | PS1 I/O check, sensor check | FRB CN8-3 (ON) | 4 to 5-L |
3 | PS19 I/O check, sensor check | PRCB CN19-5 (ON) | bizhub C364/C284 9-C bizhub C224 11-C |
4 | CL2 operation check | PRCB CN19-16 (ON) | bizhub C364/C284 10-C bizhub C224 12-C |
5 | CL4 operation check | FRB CN8-7 (CL4_24V) | 4-L |
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 | Replace FRB | ||
8 | Replace PRCB |