Ricoh Aficio SP C440DN Field Service Manual page 573

No. Type
292 D LDU shutter: Close position error
The machine does not detect the correct closed position of the LDU shutter.
• Defective LDU shutter motor
• LDU shutter broken
• Overload on the LDU shutter motor
• Defective LDU shutter sensor
• Loose or disconnected harnesses between LDU shutter motor and BCU
• Defective BCU
1. Replace the LDU shutter.
2. Replace the LDU shutter motor.
3. Replace the harnesses between LDU shutter motor and BCU.
4. Replace the BCU.
No. Type
293 D LDU shutter: Time-out error
The machine does not detect the output signal from the LDU shutter sensor for 1
second after turning on or off the LDU shutter motor.
• Defective LDU shutter motor
• LDU shutter broken
1. Replace the LDU shutter.
2. Replace the LDU shutter motor.
3. Replace the harnesses between LDU shutter motor and BCU.
4. Replace the BCU.
SC3xx: Image Processing – 1
No. Type
312 D AC charge output error [K]
313 D AC charge output error [M]
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC Tables
571