Ricoh D104 Field Service Manual page 609

No. Type
Memory address command error
The BCU does not receive a memory address command from the controller for the
prescribed time after the paper has reached the registration sensor.
• Harness disconnection at BCU
• Controller board loose or broken
• Defective HDD
• Defective BCU
687 D
• Defective controller
1. Check if the controller is firmly connected to the BCU.
2. Update the firmware of the IPU.
3. Replace the HDD.
4. Update the firmware of the BCU.
5. Replace the BCU.
6. Replace the controller board.
No. Type
GAVD communication error
• The I2C bus device ID is not identified during initialization.
• A device-status error occurs during I2C bus communication.
• The I2C bus communication is not established due to an error other than a
buffer shortage.
• Loose connection
690 D
• Defective BCU
• Defective LD controller board
1. Turn the main switch off and on.
2. Check the cable connection.
3. Replace the laser unit.
4. Replace the BCU board.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC Tables
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