Konica-Minolta bizhub C650
Troubleshooting. Jam 04. Misfeed at tray 3 feed section
Detection timing
| Type | Description |
|---|---|
| Detection of misfeed at tray 3 feed section | • The leading edge of the paper does not block the tray3 paper feed sensor (PS21) even after the lapse of a given period of time after the tray 3 starts to feed paper. |
| Detection of paper left in tray 3 | • Tray3 paper feed sensor (PS21) 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. |
| Tray 3 feed section TOD permit waiting jam | • For paper fed from the tray3, TOD permit continues to be disabled for a predetermined period of time after the timing of TOD output. |
Relevant electrical parts
Transport motor (M25)
Tray 3 paper feed clutch (CL5)
Tray 3 paper feed sensor (PS21)
Paper feed/transport drive board (PFTDB)
Printer control board (PRCB)
Action
| Step | Action | Control signal | Location |
|---|---|---|---|
| 1 | Initial check items. | ||
| 2 | PS21 I/O check, sensor check | PFTDB CN10PFTDB-6 (ON) | V-6 |
| 3 | CL5 operation check | PFTDB CN25PFTDB-5 (ON) | V-5 |
| 4 | M25 operation check | PFTDB CN12PFTDB-6 (LOCK) | V-12 |
| 5 | Change PFTDB | ||
| 6 | Change PRCB |