72-23 (bizhub 950i/850i)

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When FS-539 or FS-539SD is installed

Contents

JAM type	Misfeed at FS transport section (When FS-539 or FS-539SD is installed)
JAM code	72-23
JAM detection timing	72-23	The sub tray exit sensor (PS8) is not turned OFF (unblocked) even after the lapse of a given period of time after the leading edge of the paper has turned ON (blocked) PS8.
Misfeed processing location	Front door
Relevant parts	-FNS discharge motor (M3) -Sub tray exit sensor (PS8) -FNS entrance sensor (PS4) -Main tray exit sensor (PS16) -FS control board (FSCB)

Procedure

Step	Action	Control signal	Location of electrical component
1	Initial check items	–	–
2	Clean the sensor of paper path.	–	–
3	PS8 I/O check, sensor check	FSCB J9<B>-9 (ON)	FS-539/FS-539SD 11-C
4	M3 operation check	FSCB J9<A>-5 to 8	FS-539/FS-539SD 12-C
5	Replace FSCB.	–	–

 When FS-540 or FS-540SD is installed

Contents

JAM type	Misfeed at FS transport section (When FS-540 or FS-540SD is installed)
JAM code	72-23
JAM detection timing	72-23	The sub tray exit sensor (PS24) is not turned OFF (unblocked) even after the lapse of a given period of time after the leading edge of the paper has turned ON (blocked) PS24.
Misfeed processing location	Front door
Relevant parts	-Sub tray discharge motor (M18) -Sub tray exit sensor (PS24) -FNS entrance sensor (PS34) -FNS middle sensor (PS36) -Main tray exit sensor (PS37) -FS control board (FSCB)

Procedure

Step	Action	Control signal	Location of electrical component
1	Initial check items	–	–
2	Clean the sensor of paper path.	–	–
3	PS24 I/O check, sensor check	FSCB J14<A>-14 (ON)	FS-540/FS-540SD 17-K to L
4	M18 operation check	FSCB J12<A>-5 to 8	FS-540/FS-540SD 14-D
5	Replace FSCB.	–	–

(Link to the Field Service Manual)