12-40 (bizhub C554/C454)

PostedOctober 16, 2019

ByAdministrator Administrator

Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.

Contents

JAM type	Misfeed at tray 2 feed section
JAM code	12-40
Detection timing	For paper fed from the tray 2, 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.
–	Tray 2 vertical transport sensor (PS19) is turned ON when the main power switch is turned ON, a door or cover is opened and closed, or a misfeed or malfunction is reset.
–	Tray 2 paper feed sensor (PS20) is turned ON when the main power switch is turned ON, a door or cover is opened and closed, or a misfeed or malfunction is reset.
–	In case paper position is detected as locating properly after main power switch is turned ON, door and cover are opened / closed or jam/trouble reset is done, it is regarded as paper jam at tray 2 feed section.
Misfeed processing location	-Right door -Tray 2
Relevant parts	-Paper feed motor (M22) -Tray 2 vertical transport motor (M23) -Tray 2 paper feed clutch (CL1) -Tray 2 vertical transport sensor (PS19) -Tray 2 paper feed sensor (PS20) -Expansion control board (EXCB) -Printer control board (PRCB)

(2)Procedure

Step	Action	Control signal	Location of electrical component
1	Initial check items	–	–
2	PS19 I/O check, sensor check	PRCB CN19-5 (ON)	9-C
3	PS20 I/O check, sensor check	PRCB CN19-2 (ON)	9-C
4	CL1 operation check	PRCB CN19-14 (ON)	10-C
5	M22 operation check	EXCB CN3-5 to 8	22-P
6	M23 operation check	EXCB CN3-9 to 12	22-P
7	EXCB IC4, IC5 conduction check	–	–
8	Replace EXCB(Part# A2XKH00502)	–	–
9	PRCB ICP4 conduction check	–	–
10	Replace PRCB (C554 Part# A2XKH00104 / C454 Part# A4FJH00104)	–	–

K1.6.3 (Link to the Field Service Manual)