Ricoh G133 Service Manual page 264

SC Table
No. Type
Optional paper feed unit communication error
In the case of installing two optional paper feed units (G832 +
B800, G832 + B801, or G832 + G832):
623 D
Check and/ or connect the connector.
No. Type
EEPROM error
Retry of EEPROM communication fails three times after the machine
has detected the EEPROM error.
669 D
Turn the main power switch off and on.
No. Type
No response from controller at power on
When the main power is turned on or the machine starts warming up
from energy-saving mode, the controller does not receive a command
signal from the controller.
CTL
670
D
1.
G133
Details (Symptom, Possible Cause, Troubleshooting Procedures)
The upper unit cannot communicate with the lower unit after the
upper unit has detected the lower unit.
The upper unit detects an error signal from the lower unit after the
upper unit has detected the lower unit.
Disconnected connector
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Caused by noise
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Loose connection
Defective controller
Defective controller board
Check the connection between the EGB and controller.
4-48 SM