Konica-Minolta bizhub C3100P

Detection timing

JAM type	Detection timing
Detection of jam at transfer section	• The registration sensor (PS5) is not blocked even after the lapse of a given period of time after the registration roller driving is started.
	• The paper does not unblock the exit sensor (PS8) even after the lapse of a given period of time after the registration roller driving is started.
Detection of paper left in transfer section	• The registration sensor (PS5) is unblocked when the power switch is turned ON, a door or cover is opened and closed, or a jam or malfunction is reset.
	• The loop detection sensor (PS6) is unblocked when the power switch is turned ON, a door or cover is opened and closed, or a jam or malfunction is reset.

Relevant electrical parts

• Registration sensor (PS5)
• Exit sensor (PS8)
• Loop detection sensor (PS6)

• Printer control board (PRCB)
• Transport motor (M2)
• Loop detection clutch (CL8)

Action

Step	Action	Control signal	Location
1	Initial check items
2	Check the connector between M2-PRCB CN11 for proper connection and correct as necessary.
3	Check the M2 connector for proper drive coupling and correct as necessary.
4	Check the connector between PS5-PRCB CN23 for proper connection and correct as necessary.
5	Check the connector between PS6-PRCB CN24 for proper connection and correct as necessary.
6	Check the connector between PS8-PRCB CN15 for proper connection and correct as necessary.
7	Check the connector between CL8-relay CN2-PRCB CN7 for proper connection and correct as necessary.
8	PS5 sensor check	PRCB CN23-3 (ON)	13-L
9	PS8 sensor check	PRCB CN15-9 (ON)	13-H
10	PS6 sensor check	PRCB CN24-3 (ON)	5-C
11	CL8 operation check	PRCB CN7-2 (REM)	13-D
12	M2 operation check	PRCB CN11-10 to 13	13-B to C
13	Change PRCB.