Ricoh SP 3710DN - Page 186

6.Troubleshooting
174
No.
Type
Error Name/Error Condition/Major Cause/Solution
 Defective main motor
 Disconnected or defective motor harness
1. Turn the power OFF and ON.
2. Replace the main motor if the torque load is normal.
3. Clean/replace the AIO and/or fusing unit if the torque load is abnormal.
4. Replace the motor harness.
No.
Type
Error Name/Error Condition/Major Cause/Solution
SC530
D
Cooling fan error
The FAN lock signal – High for 10 seconds, after the cooling fan motor started to
rotate.
Disconnected or defective fan motor harness
1. Turn the power OFF and ON.
2. Replace the cooling fan.
3. Replace the fan motor harness.
No.
Type
Error Name/Error Condition/Major Cause/Solution
SC541
A
Fusing thermistor error
The thermistor output is less than 0°C for 5 seconds after the fusing lamp turns ON.
Disconnected or defective fusing thermistor
1. Reset the SC.
2. Replace the fusing unit.
3. Replace the drawer harness.
4. Replace the PSU.
No.
Type
Error Name/Error Condition/Major Cause/Solution
SC542-
01
A
Fuser reload error
The fusing temperature rises 6°C or less in 1.5 seconds; and this continues 5
times consecutively.
 Defective or deformed thermistor
 Incorrect power supply input at the main power socket
SC542-
02
A
Fuser reload error
The fusing temperature has not reached 45°C within 9 seconds (after the fusing
lamp comes ON while the machine is warming-up).
 Defective or deformed thermistor
 Incorrect power supply input at the main power socket
SC542-
A
Fuser reload error