Ricoh SP 3710DN - Page 189

6.Troubleshooting
177
No.
Type
Error Name/Error Condition/Major Cause/Solution
4. Replace the PSU.
No.
Type
Error Name/Error Condition/Major Cause/Solution
SC552
A
Fuser reload error (non-contact thermistor)
The fusing temperature rises 1°C or less in 1.5 seconds; and this continues 5 times
consecutively.
 Defective or deformed non-contact thermistor
 Incorrect power supply input at the main power socket
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
SC553
A
High temperature error (soft) (non-contact thermistor)
The detected temperature stays at 220°C for 0.5 second, and this consecutively
occurs 10 times.
 Defective main board
 Defective PSU
1. Reset the SC.
2. Replace the main board.
3. Replace the PSU.
4. Replace the fusing unit.
5. Replace the drawer harness.
No.
Type
Error Name/Error Condition/Major Cause/Solution
SC554
A
High temperature error (hard) (non-contact thermistor)
The detected temperature stays at 228°C for 0.2 second, and this consecutively
occurs 4 times.
 Defective main board
 Defective PSU
 Defective fusing unit
1. Reset the SC.
2. Replace the fusing unit.
3. Replace the drawer harness.
4. Replace the PSU.