Konica-Minolta bizhub C353

Detection timing

Type	Description
Detection of misfeed at manual bypass feed section	• The leading edge of the paper does not turn ON the sensor in front of tim. roller (PS23) even after the lapse of a given period of time after the manual bypass tray starts to feed paper.
Manual bypass feed section loop registration reversing jam	• For paper fed from the manual bypass, loop forming has not been complete before a sheet enters the timing roller because the rise timing of load to perform registration is earlier than the rise timing of load to form a loop.
Manual bypass feed section TOD permit waiting jam	• For paper fed from the manual bypass, TOD permit continues to be disabled for a predetermined period of time after the timing of TOD output.

Relevant electrical parts

Transport motor (M1)
Manual paper feed clutch (CL4)
Sensor in front of tim. roller (PS23)

Printer control board (PRCB)

Action

Step	Action	Control signal	Location
1	Initial check items.
2	PS4 I/O check, sensor check	PRCB CN1PRCB-3 (ON)	D-18
3	CL4 operation check	PRCB CN6PRCB-2 (ON)
4	M1 operation check	PRCB CN34PRCB-10 (REM) PRCB CN34PRCB-13 (LOCK)	D-23
5	Change PRCB