Troubleshooting; Paper Feeding Problems; Wrong Print Position - Samsung SCX-4216F Service Manual

7
7

7. Troubleshooting

7.1 Paper Feeding Problems

7.1.1 Wrong Print Position

• Description
A defective feed sensor actuator can cause incorrect tim-
ing.
7.1.2 JAM 0
• Description
L S U
Fuser
CR
DR
OPC
SR
PR
EXIT
Sensor
PTL
TR
Sensor
Empty Sensor
Samsung Electronics
Printing begins when the paper is in the wrong position.
Check and Cause
1. Paper has not exited from the cassette.
2. Jam-0 occurs if the paper feeds into the printer.
Check and Cause
1. Check the Solenoid by using Engine
Toner Cartridge
Test Mode : Diagnostic Mode code 0
FR MP Sensor
Feed
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
Service Manual
7-1