Samsung CLX-3185 Service Manual page 102

Code LCD message
M1-1113 Paper Jam
in Tray1
M2-1211 Paper Jam
inside machine
M3-1111 Paper Jam
in exit area
M3-2130 Output bin full
Remove paper
U1-1211 Error #U1-1211
Turn off then on
U1-2112 Error #U1-2112
Turn off then on
U1-2121 Error #U1-2121
Turn off then on
U2-1112 Error #U2-1112
Turn off then on
U2-1114 Error #U2-1114
Turn off then on
Service Manual
Alignment & Troubleshooting
Symptom
The paper has not reached the
feed1 sensor within normal time
after pick up.
At power-on / warm up, the
registration sensor has detected
the paper.
At power-on / warm up, the exit
sensor has detected the paper.
The output tray is full.
Or the sensor is not facing down.
Low heat error has occurred.
Abnormal ADC has occurred.
ZeroCross Signal detect error has
occurred.
Over heat error has occurred.
LSU has some problem.
LSU does not work but the Lready
signal is detected.
4-28
Solution
1. Clear the jam.
2. Check if the holder pad or pick
up roller rubber has worn out.
Replace the holder pad or pick
up roller.
3. If the problem persists, replace
the pick up solenoid.
1. Clear the jam.
2. Check if the holder pad or pick
up roller rubber has worn out.
Replace the holder pad or pick
up roller.
3. If the problem persists, replace
the pick up solenoid.
Clear the jam.
Remove papers from the output
tray, the machine resumes printing.
Or make sure the sensor is facing
down.
Refer to the fuser error
troubleshooting.
Is the thermistor resistance value in
300~450Kohm?
Yes : Replace the thermistor.
No : Replace the fuser unit. If
the problem persist after
replacing the fusur unit,
replace the SMPS board or
Main board.
Refer to the fuser error
troubleshooting.
Turn off the machine then on.
If the problem persist, replace the
LSU unit.
Turn off the machine then on.
If the problem persist, replace the
LSU unit.
Samsung Electronics