Konica-Minolta bizhub C300
Troubleshooting. Jam 07. Misfeed at LCT feed and LCT vertical transport section (PC-403)
Detection timing
Type | Description |
---|---|
Detection of misfeed at LCT feed section | The leading edge of the paper does not block the paper take-up sensor (PC1- LCT) or vertical transport sensor (PC2-LCT) even after the lapse of a given period of time after the take-up motor (M1-LCT) has been energized. |
Detection of misfeed at LCT vertical transport section | 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 vertical transport sensor (PC2-LCT). |
The vertical transport sensor (PC2-LCT) is not unblocked even after the lapse of a given period of time after it has been blocked by the paper. | |
LCT 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 LCT feed. |
Detection of paper left in LCT | The vertical transport sensor (PC2-LCT) 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
Paper take-up sensor (PC1-LCT)
Vertical transport sensor (PC2-LCT)
Tray 2 vertical transport sensor (PC8-PC)
Take-up motor (M1-LCT)
Registration roller sensor (PC1)
Control board (PWB-C1 LCT)
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 | PC1-LCT I/O check, sensor check | PWB-C1 LCT PJ5C1 LCT-2 (ON) | PC-403 E-10 |
4 | PC2-LCT I/O check, sensor check | PWB-C1 LCT PJ5C1 LCT-5 (ON) | PC-403 E-10 |
5 | PC8-PC I/O check, sensor check | PCCB PJ6PCCB-11 (ON) | S-25 |
6 | M1-LCT operation check | PWB-C1 LCT PJ6C1 LCT-1 to 4 | PC-403 E-11 |
7 | Change PWB-C1 LCT | ||
8 | Change MFPB |