• Code: AD00
• Description: Image processing cannot be completed correctly because the number of pixels required for image processing is insufficient in the scanned first side data.
• Remedy: 1 Incorrect correction data for first side CIS unit Execute "Acquire white level data (function code: 55)". 2 First side CIS unit failure Replace the first side CIS unit. 3 White tape failure Replace the document scanner unit. 4 Main PCB failure Replace the main PCB ASSY.

• Code: AE00
• Description: Unit home position could not be detected after the power switch was turned ON.
• Remedy: 1 Incorrect correction data for first side CIS unit Execute "Acquire white level data (function code: 55)". 2 First side CIS unit drive belt coming off Reattach the first side CIS unit drive belt. 3 First side CIS unit failure Replace the first side CIS unit. 4 FB motor failure Replace the document scanner unit. 5 Main PCB failure Replace the main PCB ASSY.

• Code: AF00
• Description: Home position is still being detected even after the first side CIS unit was moved.
• Remedy: 1 Dust on the CIS guide shaft Remove the dust on the CIS guide shaft. 2 CIS drive belt coming off Reattach the CIS drive belt. 3 CIS carriage coming off Reattach the CIS carriage. 4 Connection failure of the FB motor harness Reconnect the FB motor harness. 5 First side CIS unit failure Replace the first side CIS unit. 6 FB motor failure Replace the document scanner unit. 7 Main PCB failure Replace the main PCB ASSY.

• Code: B000
• Description: Detected that the first side CIS flat cable or second side CIS flat cable was not inserted correctly when function code 55 was executed.
• Remedy: 1 Connection failure of the first side CIS flat cable Reconnect the first side CIS flat cable. 2 Connection failure of the second side CIS flat cable Reconnect the second side CIS flat cable. 3 First side CIS unit failure Replace the first side CIS unit. 4 Second side CIS unit failure Replace the second side CIS unit. 5 Main PCB failure Replace the main PCB ASSY.

• Code: BB00
• Description: A white level not within the standard was scanned when function code 55 was executed.
• Remedy: 1 Dirt on the second side document hold Clean the second side document hold. 2 Dirt on the white tape Clean the white tape. 3 First side CIS unit failure Replace the first side CIS unit. 4 Second side CIS unit failure Replace the second side CIS unit. 5 Second side document hold failure Replace the ADF unit. 6 White tape failure Replace the document scanner unit. 7 Main PCB failure Replace the main PCB ASSY.

• Code: BC00
• Description: When scanning the fax, white or black correction data for the second side CIS was not within the correct range (second time).
• Remedy: 1 Incorrect correction data for second side CIS unit Execute "Acquire white level data (function code: 55)". 2 Dirt on the white tape on the second side document hold Clean the white tape on the second side document hold. 3 Second side CIS unit failure Replace the second side CIS unit. 4 Main PCB failure Replace the main PCB ASSY.

• Code: BD00
• Description: A black level not within the standard was scanned when function code 55 was executed.
• Remedy: 1 Dirt on the second side document hold Clean the second side document hold. 2 Dirt on the white tape Clean the white tape. 3 First side CIS unit failure Replace the first side CIS unit. 4 Second side CIS unit failure Replace the second side CIS unit. 5 Second side document hold failure Replace the ADF unit. 6 White tape failure Replace the document scanner unit. 7 Main PCB failure Replace the main PCB ASSY.

• Code: BF00
• Description: The document scanning position sensor detected that the document length was 400 mm or longer and could not be fed to ADF (double-side restoration).
• Remedy: • Set the specified size paper.
  1 Document scanning position actuator caught in some sections of the machine Reattach the document scanning position actuator. 2 Document scanning position sensor failure Replace the ADF unit. 3 Main PCB failure Replace the main PCB ASSY.