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92-01, 92-02, 92-40 (bizhub 950i/850i)
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Contents
| JAM type | Misfeed at duplex pre-registration section | |
| JAM code | 92-01, 92-02, 92-40 | |
| JAM detection timing | 92-01 | The leading edge of the paper is not turned ON the registration sensor (PS38) even after the lapse of a given period of time after a duplex paper feed sequence has been started. |
| 92-02 | For the second-side feed of paper in the duplex mode, loop forming has not been complete before the second side of a sheet enters the registration roller because the rise timing of load to perform registration is earlier than the rise timing of load to form a loop. | |
| 92-40 | For the second-side feed of paper in the duplex mode, 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. | |
| – | Paper jam of a sheet of paper left at the duplex pre-registration section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset. | |
| Misfeed processing location | -Right door -Automatic duplex unit door | |
| Relevant parts | -ADU transport motor/1 (M31) -ADU transport motor/2 (M32) -Registration sensor (PS38) -Paper feed/transport drive board (PFTDB) -Base board (BASEB) | |
Procedure
| Step | Action | Control signal | Location of electrical component |
|---|---|---|---|
| 1 | Initial check items | – | – |
| 2 | PS38 I/O check, sensor check | PFTDB CN2-5 (ON) | 8-P |
| 3 | M31 load check -Check code: 85 -Multi code: 1, 2, 3, 4 | PFTDB CN28-14 to 17 | 4-P |
| 4 | M32 load check -Check code: 85 -Multi code: 5, 6, 7, 8 | PFTDB CN28-10 to 13 | 3-P |
| 5 | PFTDB F25 conduction check. | – | – |
| 6 | Replace PFTDB. | – | – |
| 7 | Replace BASEB. | – | – |