SC4xx: Image Processing
SM 6-33 D0CA/D0C9/D0C8/D0CB
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
• BiCU malfunction (Signal error)
• High-Voltage Power Supply (Transfer) failure
Load related causes:
• Increased impedance in the paper transfer roller
• Increased impedance in the ITB
• Open-circuit
• Transfer unit not installed firmly
• This is a logging SC (No action required).
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC497-00 C Imaging Temperature Sensor Error
The thermistor output of the temperature sensor is not within the prescribed
range (more than 0.5 V to less than 3.0 V).
• Damaged or loose connector
• Defective Imaging Temperature Sensor (TH5)
Cycle the main power OFF/ON to check if this SC occurs again.
If this SC reoccurs, do the following:
1. Reconnect all the related connectors, and cycle the main power OFF/ON
to check if the SC reoccurs.
2. Replace the Imaging Temperature Sensor (TH5), and cycle the main
power OFF/ON to check if the SC reoccurs.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC498-00 C Temperature/Humidity Sensor Error
• The thermistor output of the temperature sensor is not within the
prescribed range (more than 3.0V to less than 0.5V.
• The thermistor output of the humidity sensor is not within the prescribed
range (2.4V or more).
• Damaged or loose connector
• Defective Temperature/Humidity Sensor (S18)
Cycle the main power OFF/ON to check if this SC occurs again.
If this SC reoccurs, do the following:
1. Reconnect all the related connectors, and cycle the main power OFF/ON
to check if the SC reoccurs.
2. Replace the Temperature/Humidity Sensor (S18), and cycle the main
power OFF/ON to check if the SC reoccurs.