OKI C5550MFP

• Code: 040
• Display: Service call 040:Error
• Description: CU EEPROM Error
• Causes: Does error display reappear?
• Remedy: Power OFF/ON Replace TBR PCB

• Code: 041
• Display: Service call 041:Error
• Description: CU Flash Error Flash ROM Error on the CU board.
• Causes: Does error display reappear?
• Remedy: Power OFF/ON Replace TBR PCB

• Code: 042 ... 045
• Display: Service call 042:Error ~ 043:Error 045:Error
• Description: Flash File System Error
• Causes: Access to the Flash ROM directly mounted on the CU PCB failed.
• Remedy: Flash File System Error Access to the Flash ROM directly mounted on the CU PCB failed. Conduct forced initialization of the Flash (Notice that NIC-F/ W will also be erased. It needs to be written with the Maintenance Utility after the initialization.) Execute FLASH FORMAT of MAINTENANCE MENU of the System Maintenance Menu. When "FLASH FORMAT" is displayed, release the key and wait till "ONLINE" (approx. 2 min.). If the symptom does not change, replace the TBR PCB.

• Code: 051
• Display: Service call 051:Error(C5900)
• Description: CU Fan Error Abnormal CPU cooling fan on CU board.
• Causes: Is CU Fan connector set properly? Is error recovered by replacing fan?
• Remedy: Connect properly. Replace fan. Replace TBR PCB

• Code: 052
• Display: Service call 052:Error(C5900)
• Description: DMA Abort Error detected in Image processor.
• Causes: Does error reoccur?
• Remedy: Power OFF/ON. Replace TBR PCB.

• Code: 070
• Display: Power off/on 070:Error(C5900)
• Description: PSE firmware fault detected.
• Causes: Does error reoccur?
• Remedy: Power OFF/ON. Replace TBR PCB.