Samsung SCX-4216F Series Service Manual page 55

4.8 Paper Feeding Problems
4.8.1 Wrong Print Position
• Description Printing begins at wrong position on the paper.
Check and Cause
Wrong sense time caused by defective feed sensor
actuator.
4.8.2 JAM 0
1. Paper is not exited from the cassette.
• Description
2. Jam-0 occurs if the paper feeds into the printer.
L S U
Fuser Toner Cartridge
CR
DR
OPC
SR
PR
EXIT
Sensor
PTL
TR Feed FR MP Sensor
Sensor
Empty Sensor
Samsung Electronics
Check and Cause
1. Check the Solenoid by using DCU
diagnostic mode 06.
2. Check if the pad is loose due to bad
sealing of the side-pad.
3. Check the surface of the roller-pick-
up for foreign matter.
4. If continuous clusters occur, check
whether the assembly slot between
shaft-pickup and housing-pickup
become open or is broken away.
5. If the paper feeds into the printer
rand Jam 0 occurs, perform DCU to
check feed-sensor of the engine
board.
Solution
Replace the defective actuator
1. Replace the solenoid.
2. Replace the side-pad Assembly L or
R, if necessary.
3. Clean with soft cloth dampened with
IPA(Isopropyl Alcohol) or water.
4. Replace the Housing-Pickup and/or
Shaft-Pickup.
Troubleshooting
Solution
4-21