• Code: BC00
• Description: Although operation was retried due to error AC00 that occurred while scanning the fax, white or black correction data for the second side CIS was not within the correct range.
• Causes: 1 Incorrect correction data for second side CIS. 2 Second side CIS unit failure. 3 Main PCB failure.
• Remedy: 1 Incorrect correction data for second side CIS Execute function code 55. 2 Second side CIS unit failure Replace the second side CIS unit. 3 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.
• Causes: 1 First side CIS unit or second side CIS unit failure. 2 Main PCB failure.
• Remedy: 1 First side CIS unit or second side CIS unit failure Replace the first side CIS unit or second side CIS unit. 2 Main PCB failure Replace the main PCB ASSY.

• Code: BF00
• Description: The second side document scanning position sensor detected that the ADF was unable to duplex-feed the document because the document is too long.
• Causes: 1 Second side document scanning position actuator caught in some sections of the machine. 2 Second side document scanning position sensor failure. 3 Main PCB failure.
• Remedy: 1 Second side document scanning position actuator caught in some sections of the machine Reattach the second side document scanning position actuator. 2 Second side document scanning position sensor failure Replace the second side document scanning position sensor PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: C000
• Description: The new toner sensor could not detect the new toner cartridge correctly.
• Causes: 1 The power switch was turned OFF or the front cover was opened while a new toner cartridge is being detected.
• Remedy: 1 The power switch was turned OFF or the front cover was opened while a new toner cartridge is being detected. Reset the developer roller counter.

• Code: C700
• Description: There is insufficient memory to expand PC-print data.
• Causes: 1 Main PCB failure
• Remedy: Replace the main PCB ASSY.

• Code: C800
• Description: The memory size allotted for Secure Print was exceeded when saving Secure Print data.
• Causes: 1 Main PCB failure
• Remedy: Replace the main PCB ASSY.

• Code: C900
• Description: Detected that DIMM was faulty or was mounted incorrectly.
• Causes: 1 Main PCB failure
• Remedy: Replace the main PCB ASSY.

• Code: CA00
• Description: A USB device not within the specifications is connected to the USB terminal, resulting in overcurrent.
• Causes: 1 Main PCB failure
• Remedy: Replace the main PCB ASSY.