Konica-Minolta bizhub 42
Troubleshooting. JAM. 4. Misfeed at tray 3 paper feed section
Contents
| JAM type | Misfeed at tray 3 feed section |
| Detection timing | The leading edge of the paper does not unblocked or turn ON the tray 3 vertical transport sensor (PS18) even after the lapse of a given period of time after the tray 2 starts to feed paper. |
| For paper fed from the tray 3, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output. | |
| Tray 3 vertical transport sensor (PS18) is unblocked or turned ON when the power switch is turned ON, a door is opened / closed, or jam/trouble reset is done. | |
| In case paper position is detected as locating properly after power switch is turned ON, door is opened / closed or jam/ trouble reset is done, it is regarded as paper jam at tray 3 feed section. | |
| Misfeed processing location | • Right door • Tray 3 |
| Relevant parts | • Transport motor (M1) • Tray 3 paper feed clutch (CL3) • Tray 3 vertical transport clutch (CL4) • Printer control board (PRCB) • Tray 3 vertical transport sensor (PS18) |
Procedure
| Step | Action | Control signal | Location |
|---|---|---|---|
| 1 | Initial check items | ||
| 2 | PS18 I/O check, sensor check | PRCB CN23-16 (ON) | J-10 |
| 3 | CL3 operation check | PRCB CN14-2 (ON) | D-15 |
| 4 | CL4 operation check | PRCB CN23-13 (ON) | J-10 |
| 5 | M1 operation check | PRCB CN3-4 (REM) PRCB CN3-7 (LOCK) |
K-10 |
| 6 | Change PRCB |