Ricoh M022 Service Manual page 680

6. Troubleshooting
No. Type
CTL
641
D
No. Type
CTL
650
B
6
-001 -
-004 -
-005 -
678
CÓPIA NÃO CONTROLADA
Details (Symptom, Possible Cause, Troubleshooting Procedures)
BCU control data transfer abnormal
A sampling of the control data sent from the BCU reveals an abnormality.
• Controller board defective
• External noise
• BCU board defective
1. Replace the controller board.
2. Replace the BCU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Communication error of the remote service modem (Embedded RCG-M)
Authentication error
The authentication for the Embedded RCG-M fails at a dial up connection.
• Incorrect SP settings
• Disconnected telephone line
• Disconnected modem board
Check and set the correct user name (SP5816-156) and password (SP5816-157).
Incorrect modem setting
Dial up fails due to the incorrect modem setting.
Same as -001
Check and set the correct AT command (SP5819-160).
Communication line error
The supplied voltage is not sufficient due to the defective communication line or
defective connection.
Same as -001
Consult with the user's local telephone company.
CÓPIA NÃO CONTROLADA