Konica-Minolta bizhub C252
Troubleshooting. Jam 06. 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 (PWB-M)
Action
Step | Action | Control signal | Location |
---|---|---|---|
1 | Initial check items. | ||
2 | PC1 I/O check, Sensor check | PWB-M CNSEN-3 (ON) | C-3 |
3 | PC1-LCT I/O check, Sensor check | PWB-C1 LCT PJ5C1 LCT-2 (ON) |
PC-403 C-7 |
4 | PC2-LCT I/O check, Sensor check | PWB-C1 LCT PJ5C1 LCT-5 (ON) |
PC-403 C-7 |
5 | PC8-PC I/O check, Sensor check | PWB-Z-PC PJ6Z PC-11 (ON) | S-25 |
6 | M1-LCT operation check | PWB-C1 LCT PJ6C1 LCT-1 to 4 | PC-403 C-8 |
7 | Change PWB-C1 LCT | ||
8 | Change PWB-M |