Konica-Minolta bizhub C300
Troubleshooting. Jam 08. Misfeed at tray 3 feed and tray 3 vertical transport section (PC-103/PC203)
Detection timing
Type | Description |
---|---|
Detection of misfeed at tray 3 feed or vertical transport section | The leading edge of the paper does not block the tray 3 vertical transport sensor (PC117-PC) even after the lapse of a given period of time after the tray3 take-up motor (M122-PC) has been energized. |
The tray 2 vertical transport sensor (PC8-PC) is not blocked even after the lapse of a given period of time after the paper has blocked the tray 3 vertical transport sensor (PC117-PC). | |
The tray 3 vertical transport sensor (PC117-PC) is not unblocked even after the lapse of a given period of time after it has been blocked by the paper. | |
Tray 3 vertical transport section loop registration reversing jam | Rise timing of load for registration is earlier than the one for making the loop at front of the registration roller at tray 3 feed. |
Detection of paper left in Tray 3 | The tray 3 vertical transport sensor (PC117-PC) is blocked when the main power switch is turned ON, a door or cover is opened and closed, or a misfeed or malfunction is reset. |
The tray 3 take-up sensor (PC116-PC) is blocked when the main power switch is turned ON, a door or cover is opened and closed, or a misfeed or malfunction is reset. |
Relevant electrical parts
Tray 3 take-up sensor (PC116-PC)
Tray 3 vertical transport sensor (PC117-PC)
Tray 2 vertical transport sensor (PC8-PC)
Tray3 take-up motor (M122-PC)
Registration roller sensor (PC1)
Control board (PWB-C2 PC)
Mechanical control board (MFPB)
Action
Step | Action | Control signal | Location |
---|---|---|---|
1 | Initial check items. | ||
2 | PC1 I/O check, sensor check | MFPB CNSEN-3 (ON) | C-3 |
3 | PC116-PC I/O check, sensor check | PWB-C2 PC PJ6C2 PC-8 (ON) | PC-103, PC-203 B-2 |
4 | PC117-PC I/O check, sensor check | PWB-C2 PC PJ6C2 PC-11 (ON) | PC-103, PC-203 B-2 |
5 | PC8-PC I/O check, sensor check | PCCB PJ6PCCB-11 (ON) | S-25 |
6 | M122-PC operation check | PWB-C2 PC PJ5C2 PC-1 to 4 | PC-103, PC-203 B-3 |
7 | Change PWB-C2 PC | ||
8 | Change MFPB |