Konica-Minolta bizhub C350

Detection timing

Type	Description
2nd Image Transfer, Fusing misfeed detection	The leading edge of the paper does not block the Exit Sensor (PC30) even after the lapse of a given period of time after the Synchronizing Roller Clutch has been energized.
	The Synchronizing Roller Sensor (PC28) is not unblocked even after the lapse of a given period of time after it has been blocked by the paper.
1st Drawer take-up misfeed detection	The leading edge of the paper does not block the Synchronizing Roller Sensor (PC28) even after the lapse of a given period of time after the 1st Drawer Paper Take-Up Clutch (CL1) has been energized.
Misfeed detected as a result of delayed deactivation of sensor	The Synchronizing Roller Sensor (PC28) is not unblocked even after the lapse of a given period of time after it has been blocked by the paper.
Detection of paper left in 2nd Image Transfer	The Synchronizing Roller Sensor (PC28) is blocked when the Power Switch is turned ON, a door or cover is opened and closed, or a misfeed or malfunction is reset.
	The OHP Sensor (PC27) is blocked when the Power Switch is turned ON, a door or cover is opened and closed, or a misfeed or malfunction is reset.
Detection of paper left in 1st Drawer	Tray 1 Double Feed Sensor (PC1) is blocked when the Power Switch is turned ON, a door or cover is opened and closed, or a misfeed or malfunction is reset.

Relevant electrical parts

Tray 1 Double Feed Sensor (PC1)
Synchronizing Roller Sensor (PC28)
Exit Sensor (PC30)
OHP Sensor (PC27)
Synchronizing Roller Clutch (CL3)
1st Drawer Paper Take-Up Clutch (CL1)

Control Board (PWB-MC)

Action

Step	Action	Control signal	Location
1	Initial check items.
2	PC1 I/O check, Sensor check	PWB-MC PJ14MC-7B (ON)	K-7
3	PC28 I/O check, Sensor check	PWB-MC PJ12MC-6A (ON)	R-2
4	PC30 I/O check, Sensor check	PWB-MC PJ12MC-12 (ON)	S-2
5	PC27 I/O check, Sensor check	PWB-MC PJ12MC-2 (ON)	R-2
6	CL3 operation check	PWB-MC PJ12MC-13 (ON)	S-2
7	CL1 operation check	PWB-MC PJ14MC-10B (ON)	L-7
8	Change PWB-MC