Sc573-00; Sc574-00; Software High Temperature Detection (Sensor 3): Thermopile; Hardware High Temperature Detection (Sensor 3) - Ricoh Pro 8300S Troubleshooting Manual

1.SC Codes
Solution
* If fusing SC occurs during inspection, execute "Fusing SC Reset" (SP5-810-001) in SP mode every
time SC occurs, and then turn the main power OFF and ON.
1. Check the connector (thermopile control board connector, relay connector).
2. Check the IOB connector.
3. Replace the thermopile (heating roller full-bd ends) (SEN85).
4. Replace the harness.
5. Replace the IOB.

SC573-00

Error Name
Software High Temperature Detection (Sensor 3): Thermopile (Heating Roller Full-Bd Ends)
Pattern
A
Error Condition
Abnormal high temperature is detected.
Major Cause
Thermopile (heating roller full-bd ends) (SEN85) is defective.

 AC control board is defective.
IOB is defective.

Harness between the AC control board and IOB is defective.

Solution
* If fusing SC occurs during inspection, execute "Fusing SC Reset" (SP5-810-001) in SP mode every
time SC occurs, and then turn the main power OFF and ON.
1. Replace the thermopile (heating roller full-bd ends) (SEN85).
2. Replace the AC control board.
3. Replace the IOB.
4. Replace the harness between the AC control board and IOB.

SC574-00

Error Name

Hardware High Temperature Detection (Sensor 3)

Pattern
A
180