Samsung WC-M15i Series Service Manual page 68

Error code 2-050
Fault Multi-feeding
Description
Multiple sheets of paper are fed at once.
Check
Engine board
Cause
1. Solenoid malfunction.
2. Feed clutch armature does not engage the pick-up housing in the pick-up ass'y.
Solution
1. If the solenoid does not work properly:
1-1. Measure the resistance of the feed clutch coil. If below 40 ohm (normal: 55-60 ohm), replace.
1-2. Check Q4 C/E short, and replace as necessary. (If C and E are shorted, multiple sheets of
paper feed when the printer powers on.)
1-3. Check if the solenoid spring is returned to the original state. Replace if the return force is
weak.
2. If the clutch works properly, but the armature does not engage the pick-up housing in the pick-up
ass'y, bend the armature to pick up properly.
Remark
The feed clutch spring has 40 turns. A pad is attached to solenoid yoke, the armature angle is 90
degrees.
Others
Samsung Electronics
Troubleshooting
Model ML-6100
5-31