Ricoh Pro 8300S - Sc753-61

1.SC Codes
489
Major Cause
 Timing sensor connector loose, broken, defective
 Sensor defective
 Master control board disconnected, defective
Solution
 Reconnect the connector.
 Clean the sensor.
 Replace the timing sensor.
 Replace the master control board.
 Replace the sensor harness.
After the repairs, cancel the low performance mode, and then turn the power off/on.
SC753-61
Error Name
Perfect Binder: Cover registration sensor adjustment high value error
Pattern
B
Error Condition
The cover registration sensor A/D input value was lower than 3.0 to 3.5V, the A/D input value did not go
higher than 3.0 to 3.5V, even after cover registration sensor output value output was higher than 3.5V.
Major Cause
 Cover registration sensor connector loose, broken, defective
 Sensor defective
 Master control board disconnected, defective
Solution
 Reconnect the connector.
 Clean the sensor.
 Replace the cover registration sensor.
 Replace the master control board.
 Replace the sensor harness.
After the repairs, cancel the low performance mode, and then turn the power off/on.