Konica-Minolta bizhub C353

Detection timing

Type	Description
Detection of misfeed at tray 1 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 tray 1 starts to feed paper.
Detection of paper left in tray 1 feed section	• The paper feed tray 1 chain feed sensor (PS1) 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 1 feed section loop registration reversing jam	• For paper fed from the tray 1, due to a delay in paper arrival, loop forming in front of the timing roller is not complete before the rise timing of the transport motor (M1).
Tray 1 feed section TOD permit waiting jam	• For paper fed from the tray1, TOD permit continues to be disabled for a predetermined period of time after the timing of TOD output.

Relevant electrical parts

Transport motor (M1)
Paper feed tray 1 paper feed clutch (CL1)
Paper feed tray 1 chain feed sensor (PS1)
Sensor in front of tim. roller (PS23)

Printer control board (PRCB)

Action

Step	Action	Control signal	Location
1	Initial check items.
2	PS1 I/O check, sensor check	PRCB CN12PRCB-8 (ON)	D-8
3	PS23 I/O check, sensor check	PRCB CN1PRCB-3 (ON)	D-18
4	CL1 operation check	PRCB CN12PRCB-11 (ON)	D-9
5	M1 operation check	PRCB CN34PRCB-10 (REM) PRCB CN34PRCB-13 (LOCK)	D-23
6	Change PRCB