Konica-Minolta bizhub C754
Troubleshooting. Jam Code: 17-30, 17-31
Contents
| JAM type | Tray 3/4 horizontal transport section |
| JAM code | 17-30, 17-31 |
| Detection timing | 17-30 The horizontal transport sensor (PS29) is not blocked even after the lapse of a given period of time after the paper has blocked the tray 3 paper feed sensor (PS21). |
| 17-31 The LCC vertical transport sensor (PS28) is not unblocked even after the lapse of a given period of time after the paper has blocked the horizontal transport sensor (PS29). |
|
| The horizontal transport sensor (PS29) 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. | |
| Misfeed processing location | Tray 3/4 horizontal transport unit |
| Relevant parts | • LCC t ransport motor (M25) • Tray 3 transport clutch (CL6) • Horizontal transport clutch (CL3) • Tray 3 paper feed sensor (PS21) • Horizontal transport sensor (PS29) • LCC vertical transport sensor (PS28) • Paper feed/transport drive board (PFTDB) • Printer control board (PRCB) |
Procedure
| Step | Action | Control signal | Location |
|---|---|---|---|
| 1 | Initial check items | ||
| 2 | PS21 I/O check, sensor check | PFTDB CN20-9 (ON) | 6-X |
| 3 | PS28 I/O check, sensor check | PFTDB CN18-15 (ON) | 10-X |
| 4 | PS29 I/O check, sensor check | PFTDB CN18-13 (ON) | 10-X |
| 5 | CL3 operation check | PFTDB CN18-5 (REM) | 9-X |
| 6 | CL6 operation check | PFTDB CN20-10 (REM) | 6-X |
| 7 | M25 operation check | PFTDB CN17-1 to 7 | 11-X |
| 8 | PFTDB ICP3 or ICP13 conduction check | ||
| 9 | Replace PFTDB | ||
| 10 | PRCB ICP13 conduction check | ||
| 11 | Replace PRCB |