Samsung SCX-4100 Paper Feed problems Causes and Solutions, Wrong Print Position, 2 JAM

Troubleshooting

7.3 Paper Feed problems – Causes and Solutions

7.3.1Wrong Print Position

•Description Printing begins at wrong position on the paper.

Check and Cause	Solution
Wrong sensor timing caused by defective feed sensor	Replace the defective actuator
actuator.

7.3.2 JAM 0

• Description

1. Paper does not exit from the cassette.

2. Jam-0 occurs when the paper feeds into the printer.

	L S U
Fuser	CR	Toner Cartridge
		DR
EXIT	OPC	SR
Sensor	PR
	TR	PTL Feed		MP Sensor
		Sensor		FR
				R/
			PIC	K

Empty Sensor

	Check and Cause		Solution
1.	Check the Solenoid by using Tech	1.	Replace the solenoid.
	Mode.
2.	Check cassette/MP knock-up plate	2.	Repair / replace as required
	and springs.
3.	Check paper separator pad	3 Clean with soft cloth dampened with
			IPA (Isopropyl Alcohol) or water.
			Replace if required.
4.	Check the pick up roller for	4.	Clean with soft cloth dampened with
	contamination and correct assembly.		IPA (Isopropyl Alcohol) or water.
			Replace if required
5.	If continuous clusters occur, check all	5.	Ensure all rollers are clean and free to
	rollers between pickup and registration		operate correctly.
	sensor.
6 If the paper feeds into the printer and		6.	Check the SMPS PBA, Main PBA and
	Jam 0 occurs, perform Tech Mode to		all connections. Replace any faulty
	check feed sensor.		parts or the

Service Manual

7-10

Samsung Electronics