• Code: B0
• Description: Harness for scanning is not connected correctly.
• Causes:
• Remedy: 1 Scanner harness not connected correctly. Reconnect the scanner harness correctly. 2 Scanner harness broken Replace the FB unit. 3 Main PCB failure Replace the main PCB ASSY.

• Code: B7
• Description: Detection error of scanner
  (Scanning reference voltage adjustment malfunction.)
• Causes:
• Remedy: 1 FB unit failure Replace the FB unit. 2 Main PCB failure Replace the main PCB ASSY.

• Code: B9
• Description: Scanning light adjustment error.
• Causes:
• Remedy: 1 FB unit failure Replace the FB unit. 2 Main PCB failure Replace the main PCB ASSY.

• Code: BB
• Description: White level data error
• Causes:
• Remedy: 1 FB unit failure Replace the FB unit. 2 Main PCB failure Replace the main PCB ASSY.

• Code: E6
• Description: NVRAM error on main PCB
• Causes:
• Remedy: 1 Main PCB failure Replace the main PCB ASSY.

• Code: EC
• Description: Fan performance malfunction
• Causes:
• Remedy: 1 Harness connection failure of fan motor Check the harness connection of the fan motor, and reconnect it. 2 Fan motor failure Replace the fan motor. 3 Main PCB failure Replace the main PCB ASSY.

• Code: F8
• Description: Battery connection failure
• Causes:
• Remedy: 1 Battery harness connection failure Reconnect the battery harness. 2 Battery exhausted Replace the battery. 3 Main PCB failure Replace the main PCB ASSY.

• Code: F9
• Description: Maintenance mode 74 Non-decision
  (Inputting omission of the customizing code.)
• Causes:
• Remedy: 1 Turn the power off, when the Maintenance mode 74 is in progress. Implement the Maintenance mode 74 again.