92-01, 92-02, 92-04, 92-40 (bizhub C750i)

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Contents

JAM type	Misfeed at duplex pre-registration section
JAM code	92-01, 92-02, 92-04, 92-40
JAM detection timing	92-01: The leading edge of the paper is not turned ON (unblocked) the registration sensor/1 (PS1) 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.
	92-04: The registration sensor/2 (PS72) is not turned ON even after the lapse of a given period of time after a duplex paper feed sequence has been started.
	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
Relevant parts	-ADU transport motor/2 (M26) -Registration sensor/1 (PS1) -Registration sensor/2 (PS72) -Base board (BASEB)

Procedure

Step	Action	Control signal	Location of electrical component
1	Initial check items	–	–
2	PS1 I/O check, sensor check	BASEB CN15E-9 (ON)	4-C
3	PS72 I/O check, sensor check	BASEB CN15E-19 (ON)	5-C
4	M26 load check Check code: 85 Multi code: 6, 9, 10	BASEB CN18E-11 to 14	6-C
5	Replace BASEB. (Part# ACKNH02101)	–	–

(Link to the Field Service Manual)