20-20 (bizhub C754/C654)
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Contents
| JAM type | Vertical transport section | |
| JAM code | 20-20 | |
| Detection timing | The tray 1 vertical transport sensor (PS4) is not turned ON even after the lapse of a given period of time after the paper has turned ON the tray2 vertical transport sensor (PS12). | |
| Misfeed processing location | -Manual bypass tray door -Lower right door | |
| Relevant parts | -Tray 1 vertical transport motor (M5) -Tray 2 vertical transport motor (M7) -LCC vertical transport motor (M26) -Tray 1 vertical transport sensor (PS4) -Tray 2 vertical transport sensor (PS12) -Registration sensor (PS38) -OHP sensor (PS40) -Paper feed/transport drive board (PFTDB) Printer control board (PRCB) |
(2)Procedure
| Step | Action | Control signal | Location of electrical component |
| 1 | Initial check items | – | – |
| 2 | PS4 I/O check, sensor check | PFTDB CN15-8 (ON) | 2-P |
| 3 | PS12 I/O check, sensor check | PFTDB CN14-2 (ON) | 3-P |
| 4 | PS38 I/O check, sensor check | PFTDB CN3-6 (ON) | 5-P |
| 5 | PS40 I/O check, sensor check | PFTDB CN3-3 (REM) | 4-P |
| 6 | M5 operation check | PFTDB CN7-1 to 4 | 11-X |
| 7 | M7 operation check | PFTDB CN7-9 to 12 | 12-X |
| 8 | PFTDB ICP3, ICP12 or ICP14 conduction check | – | – |
| 9 | Replace PFTDB (Part# A2X0H00202) | – | – |
| 10 | PRCB ICP13 conduction check | – | – |
| 11 | Replace PRCB (Part# A2X0H00102) | – | – |
- Link to the wiring diagram (N.1. bizhub C754/C654)
K.1.7 (Link to the Field Service Manual)