Ricoh Pro 8300S - Sc753-88

1.SC Codes
506
Solution
 Reconnect the connector.
 Replace the main grip signature sensor.
 Replace the slave control board.
 Replace the sensor harness.
 Clear the signature jam.
 Replace the signature exit roller motor.
 Replace the motor harness.
After the repairs, cancel the low performance mode, and then turn the power off/on.
SC753-88
Error Name
Perfect Binder: Signature thickness sensor minimum value error
Pattern
B
Error Condition
When the result of the signature thickness detection (A/D value) was adjusted, the minimum value (0
mm) was smaller than the A/D value of -30.
Major Cause
 Signature thickness sensor defective
 Connector loose, broken, defective
 Slave control board defective
 Master control board defective
 EEPROM on the master board defective
Solution
 Reconnect the connector.
 Specify the signature thickness again.
 Replace the signature thickness sensor.
 Replace the EEPROM on the master board.
 Replace the slave control board.
 Replace the master control board.
 Replace the sensor harness.
After the repairs, cancel the low performance mode, and then turn the power off/on.