Ricoh Aficio SP C231N

823
USB/ Network Device Error
An interface error in the USB connection or NIB connection occurs.
• Controller board detective
1. Replace the controller board.
824
EEPROM Error
An EEPROM check error at power-on occurs.
• Controller board detective
1. Replace the controller board.
827
On-Board Memory Check Error
An on-board memory check error at power-on occurs.
• Controller board detective
1. Replace the controller board.
828
ROM Checksum Error
A ROM checksum error at power-on occurs.
1. Replace the controller board.
Service Call Conditions
23
3