Samsung ML-6050 Service Manual page 65

Error code 3-011
Fault
Malfunction of the gear motor in the fuser
Description
When printing, motor breaks away from its place due to the defective fuser gear.
Check
1. Fuser
2. Engine board
Cause
1. Fuser control temperature is set too high.
2. PC151 or Q3 is defective.
3. Overheat circuit is not operating properly.
Solution
1-1. Check if the thermostat is open, and replace.
1-2. Check if the thermistor sensor is in place, and replace if required.
2-1. R57 and R58 = 3.3k and 1k, respectively.
Check if R57 and R58 are 3.3K and 1K respectively.
2-2. Replace Q3 if C and E are short.
2-3. Replace PC151 if pin 4 and 6 are short.
2-4. Replace Q101 if T1 and T2 are short.
3. Check if the overheat circuit works properly :
Refer to the solution 2-2 under 'Error Code 3-010'.
Remark
Others
Samsung Electronics
Troubleshooting
Model ML-xxxx
5-33