Konica-Minolta bizhub C351
Troubleshooting. Jam 02. Tray 1 take-up, 2nd Image Transfer, Fusing Misfeed
Detection timing
| Type | Description |
|---|---|
| 2nd Image Transfer, Fusing misfeed detection | The leading edge of the paper does not block the Exit Sensor (PC30) even after the lapse of a given period of time after the Registration Roller Clutch has been energized. |
| The Registration Roller Sensor (PC28) is not unblocked even after the lapse of a given period of time after it has been blocked by the paper. (Except when feeding the paper from Tray 1) | |
| Tray 1 take-up misfeed detection | The leading edge of the paper does not block the Registration Roller Sensor (PC28) even after the lapse of a given period of time after the Tray 1 Paper Feed Clutch (CL1) has been energized. (When the system speed is 60 mm/s or 165 mm/s) |
| The leading edge of the paper does not block the OHP Sensor (PC27) after the lapse of a given period of time after the Tray 1 Paper Feed Clutch (CL1) has been energized. (When the system speed is 215 mm/s) | |
| Misfeed detected as a result of delayed deactivation of sensor | The Registration Roller Sensor (PC28) is not unblocked even after the lapse of a given period of time after it has been blocked by the paper. (When the system speed is 60/mms or 165 mm/s) |
| The OHP sensor (PC27) is not unblocked even after the lapse of a given period of time after PC27 has been blocked by the paper. (When the system speed is 215 mm/s) | |
| Detection of paper left in 2nd Image Transfer | The Registration Roller Sensor (PC28) 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 OHP Sensor (PC27) 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. | |
| Detection of paper left in Tray 1 | Tray 1 Double Feed Sensor (PC1) 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 1 Double Feed Sensor (PC1)
Registration Roller Sensor (PC28)
Exit Sensor (PC30)
OHP Sensor (PC27)
Control Board (PWB-MC)
Registration Roller Clutch (CL3)
Tray 1 Paper Feed Clutch (CL1)
Action
| Step | Action | Control signal | Location |
|---|---|---|---|
| 1 | Initial check items. | ||
| 2 | PC1 I/O check, Sensor check | PWB-MC PJ22MC-8 (ON) | C to D-5 |
| 3 | PC28 I/O check, Sensor check | PWB-MC PJ24MC-6 (ON) | C to D-3 |
| 4 | PC30 I/O check, Sensor check | PWB-MC PJ24MC-12 (ON) | C to D-4 |
| 5 | PC27 I/O check, Sensor check | PWB-MC PJ24MC-2 (ON) | C to D-3 |
| 6 | CL3 operation check | PWB-MC PJ24MC-14 (ON) | C to D-4 |
| 7 | CL1 operation check | PWB-MC PJ14MC-3 (ON) | C to D-5 to 6 |
| 8 | Change PWB-MC |